V&M Steel grades for High Collapse - VAM Services

V&M Steel grades for High Collapse 

SOUR SERVICE 

HIGH COLLAPSE 

HC series 

HCS series 

HCSS series 

13CR/SUPER13CR 

Vallourec Group

High Collapse Grades 

High Collapse V&M Grades 

HC series 

DIMENSION API Normal Drift Special Drift HIGH COLLAPSE RESISTANCE 

Size OD 

Nominal Weight Nominal Wall 

Thickness 

Ratio 

D / t 

Drift Diameter Drift Diameter VM 80 HC 

VM 95 HC 

VM 110 HC 

VM 125 HC 

VM 140 HC 

in. mm lb/ft kg/m in. mm 

in. mm in. mm psi MPa psi MPa psi MPa psi MPa psi MPa 

4·1/2” 114,30 11,60 17,26 0,250 6,35 18,00 3,875 98,43 8230 56,7 9270 63,9 10220 70,5 10820 74,6 11530 79,5 

4·1/2” 114,30 13,50 20,09 0,290 7,37 15,52 3,795 96,39 10260 70,7 12080 83,3 12970 89,5 13810 95,2 15020 103,6 

4·1/2” 114,30 15,10 22,47 0,337 8,56 13,35 3,701 94,01 12640 87,2 14460 99,7 16210 111,7 17330 119,5 18950 130,7 

5” 127,00 15,00 22,32 0,296 7,52 16,89 4,283 108,79 9060 62,5 10250 70,6 11350 78,3 12040 83,0 13030 89,8 

5” 127,00 18,00 26,79 0,362 9,19 13,81 4,151 105,44 12080 83,3 13790 95,1 15440 106,4 16490 113,7 18000 124,1 

5” 127,00 21,40 31,85 0,437 11,10 11,44 4,001 101,63 15500 106,9 17820 122,9 20080 138,4 21540 148,5 23680 163,3 

5” 127,00 23,20 34,53 0,478 12,14 10,46 3,919 99,55 17210 118,7 20030 138,1 22610 155,9 24300 167,5 26780 184,6 

5” 127,00 24,10 35,87 0,500 12,70 10,00 3,875 98,43 18000 124,1 21000 144,8 23980 165,3 25780 177,7 28440 196,1 

5·1/2” 139,70 17,00 25,30 0,304 7,72 18,09 4,767 121,08 8160 56,3 9190 63,4 10140 69,9 10720 73,9 11340 78,2 

5·1/2” 139,70 20,00 29,76 0,361 9,17 15,24 4,653 118,19 10530 72,6 12380 85,4 13340 92,0 14210 98,0 15460 106,6 

5·1/2” 139,70 23,00 34,23 0,415 10,54 13,25 4,545 115,44 12770 88,1 14610 100,8 16380 112,9 17520 120,8 19160 132,1 

5·1/2” 139,70 26,80 39,88 0,500 12,70 11,00 4,375 111,13 16300 112,4 18770 129,4 21160 145,9 22720 156,7 25010 172,4 

5·1/2” 139,70 29,70 44,20 0,562 14,27 9,79 4,251 107,99 18390 126,8 21450 147,9 24520 169,1 26510 182,8 29260 201,7 

6·5/8” 168,28 24,00 35,72 0,352 8,94 18,82 5,796 147,22 7680 52,9 8620 59,4 9470 65,3 10000 69,0 10040 69,2 

6·5/8” 168,28 28,00 41,67 0,417 10,59 15,89 5,666 143,92 9920 68,4 11250 77,6 12510 86,3 13310 91,7 14330 98,8 

6·5/8” 168,28 32,00 47,62 0,475 12,07 13,95 5,550 140,97 11910 82,2 13600 93,8 15220 104,9 16250 112,1 17760 122,5 

7” 177,80 23,00 34,23 0,317 8,05 22,08 6,241 158,52 6,250 158,75 5880 40,6 6110 42,1 6110 42,1 6110 42,1 6110 42,1 

7” 177,80 26,00 38,69 0,362 9,19 19,34 6,151 156,24 7350 50,7 8230 56,8 8620 59,4 9230 63,7 9230 63,6 

7” 177,80 29,00 43,16 0,408 10,36 17,16 6,059 153,90 8850 61,0 10250 70,7 11070 76,3 11750 81,0 12670 81,0 

7” 177,80 32,00 47,62 0,453 11,51 15,45 5,969 151,61 6,000 152,40 10320 71,2 12150 83,8 13060 90,0 13900 95,9 15120 104,2 

7” 177,80 35,00 52,09 0,498 12,65 14,06 5,879 149,33 11790 81,3 13800 95,2 15160 104,6 16070 110,8 17540 120,9 

7” 177,80 38,00 56,55 0,540 13,72 12,96 5,795 147,19 13160 90,7 15070 103,9 16900 116,5 18090 124,7 19810 136,6 

7” 177,80 41,00 61,02 0,590 14,99 11,86 5,695 144,65 14790 102,0 16990 117,1 19110 131,8 20490 141,3 22510 155,2 

7” 177,80 42,70 63,55 0,625 15,88 11,20 5,625 142,88 15930 109,8 18330 126,4 20660 142,5 22180 152,9 24390 168,2 

7·5/8” 193,68 26,40 39,29 0,328 8,33 23,25 6,844 173,84 5210 36,0 5210 36,0 5210 36,0 5210 36,0 5210 35,9 

7·5/8” 193,68 29,70 44,20 0,375 9,53 20,33 6,750 171,45 6770 46,7 7550 52,1 7890 54,4 7890 54,4 7910 54,5 

7·5/8” 193,68 33,70 50,15 0,430 10,92 17,73 6,640 168,66 8420 58,1 9490 65,4 10480 72,3 11100 76,5 11960 82,5 

7·5/8” 193,68 39,00 58,04 0,500 12,70 15,25 6,500 165,10 10520 72,5 11960 82,5 13320 91,9 14190 97,8 15430 106,4 

7·5/8” 193,68 41,00 61,02 0,537 13,64 14,20 6,426 163,22 11620 80,2 13260 91,4 14830 102,2 15830 109,1 17270 119,1 

7·5/8” 193,68 42,80 63,69 0,562 14,27 13,57 6,376 161,95 12370 85,3 14140 97,5 15840 109,2 16930 116,7 18500 127,6 

7·5/8” 193,68 45,30 67,41 0,595 15,11 12,82 6,310 160,27 13360 92,1 15310 105,5 17180 118,4 18390 126,8 20140 138,9 

7·5/8” 193,68 47,10 70,09 0,625 15,88 12,20 6,250 158,75 14260 98,3 16360 112,8 18400 126,8 19710 135,9 21630 149,1 

7·5/8” 193,68 51,20 76,20 0,687 17,45 11,10 6,126 155,60 16120 111,1 18550 127,9 20910 144,2 22450 154,8 24700 170,3 

7·5/8” 193,68 55,30 82,30 0,750 19,05 10,17 6,000 152,40 17700 122,0 20660 142,4 23470 161,8 25230 174,0 27830 191,9 

7·5/8” 193,68 59,20 88,10 0,812 20,62 9,39 5,876 149,25 19160 132,1 22360 154,2 25550 176,2 27680 190,8 30880 212,9 

7·3/4” 196,85 46,10 68,61 0,595 15,11 13,03 6,435 163,45 6,500 165,10 13070 90,1 14970 103,2 16790 115,8 17960 123,9 19660 135,6 

8·5/8” 219,08 36,00 53,57 0,400 10,16 21,56 7,700 195,58 6130 42,3 6580 45,4 6580 45,4 6580 45,4 6580 45,4 

8·5/8” 219,08 40,00 59,53 0,450 11,43 19,17 7,600 193,04 7,625 193,68 7460 51,4 8360 57,6 9180 63,3 9490 65,4 9490 65,4 

8·5/8” 219,08 44,00 65,48 0,500 12,70 17,25 7,500 190,50 8780 60,5 9920 68,4 10970 75,6 11630 80,2 12560 86,6 

8·5/8” 219,08 49,00 72,92 0,557 14,15 15,48 7,386 187,60 10290 70,9 11690 80,6 13020 89,7 13860 95,5 15060 103,8 

8·5/8” 219,08 52,00 77,39 0,595 15,11 14,50 7,310 185,67 11300 77,9 12880 88,8 14380 99,1 15340 105,8 16720 115,3 

9·5/8” 244,48 40,00 59,53 0,395 10,03 24,37 8,679 220,44 8,750 222,25 4480 30,9 4480 30,9 4480 30,9 4480 30,9 4480 30,9 

9·5/8” 244,48 43,50 64,74 0,435 11,05 22,13 8,599 218,41 8,625 219,08 5860 40,4 6080 41,9 6080 41,9 6080 41,9 6080 41,9 

9·5/8” 244,48 47,00 69,94 0,472 11,99 20,39 8,525 216,53 8,625 219,08 6740 46,5 7420 51,2 7660 52,8 7820 53,9 7830 54,0 

9·5/8” 244,48 53,50 79,62 0,545 13,84 17,66 8,379 212,82 8,500 215,90 8470 58,4 9850 67,9 10550 72,8 11180 77,1 12050 83,1 

9·5/8” 244,48 58,40 86,91 0,595 15,11 16,18 8,279 210,28 8,375 212,73 9660 66,6 11390 78,6 12160 83,9 12930 89,1 14010 96,6 

9·5/8” 244,48 59,40 88,40 0,609 15,47 15,80 8,251 209,57 9990 68,9 11340 78,2 12610 87,0 13420 92,5 14560 100,4 

9·5/8” 244,48 61,10 90,93 0,625 15,88 15,40 8,219 208,76 10370 71,5 11790 81,3 13130 90,5 13980 96,4 15190 104,7 

9·5/8” 244,48 64,90 96,58 0,672 17,07 14,32 8,125 206,37 11490 79,2 13100 90,3 14640 100,9 15620 107,7 17040 117,5 

9 5/8” 244,48 70,30 104,62 0,734 18,64 13,12 8,001 203,22 12960 89,4 14830 102,2 16630 114,7 17790 122,7 19470 134,2 

9·3/4” 247,65 59,20 88,10 0,595 15,11 16,39 8,404 213,45 8,500 215,90 9480 65,4 10740 74,0 11920 82,2 12660 87,3 13710 94,5 

9·7/8” 250,83 62,80 93,16 0,625 15,88 15,80 8,469 215,11 8,500 215,90 10000 68,9 11780 81,2 12620 87,0 13420 92,5 14570 100,5 

10” 254,00 54,30 80,81 0,531 13,49 18,83 8,782 223,06 7670 52,9 8610 59,3 9460 65,3 9990 68,9 10030 69,2 

10” 254,00 60,30 89,74 0,595 15,11 16,81 8,654 219,80 9130 63,0 10330 71,2 11440 78,9 12150 83,7 13130 90,5 

10” 254,00 62,20 92,57 0,618 15,70 16,18 8,608 218,64 9650 66,6 10940 75,5 12160 83,8 12920 89,1 14010 96,6 

10” 254,00 67,50 100,45 0,672 17,07 14,88 8,500 215,89 10890 75,1 12400 85,5 13830 95,3 14740 101,6 16050 110,6 

10” 254,00 68,90 102,54 0,688 17,48 14,53 8,468 215,08 8,500 215,90 11250 77,6 12830 88,4 14320 98,7 15280 105,3 16660 114,9 

10·3/4” 273,05 51,00 75,90 0,450 11,43 23,89 9,694 246,22 4790 33,1 4790 33,1 4790 33,1 4790 33,1 4790 33,0 

10·3/4” 273,05 55,50 82,59 0,495 12,57 21,72 9,604 243,93 9,625 244,48 6060 41,8 6440 44,4 6440 44,4 6440 44,4 6440 44,4 

10·3/4” 273,05 60,70 90,33 0,545 13,84 19,72 9,504 241,39 7120 49,1 7960 54,9 8680 59,8 8680 59,8 8680 59,8 

10·3/4” 273,05 65,70 97,77 0,595 15,11 18,07 9,404 238,85 9,500 241,30 8180 56,4 9210 63,5 10160 70,0 10750 74,1 11390 78,5 

10·3/4” 273,05 68,80 102,39 0,636 16,15 16,90 9,322 236,77 9050 62,4 10240 70,6 11340 78,2 12030 83,0 13000 89,6 

10·3/4” 273,05 73,20 108,94 0,672 17,07 16,00 9,250 234,94 9820 67,7 11140 76,8 12380 85,3 13160 90,7 14280 98,5 

10·3/4” 273,05 79,20 117,86 0,734 18,64 14,65 9,126 231,79 11130 76,8 12690 87,5 14160 97,6 15100 104,1 16450 113,4 

10·3/4” 273,05 85,30 126,94 0,797 20,24 13,49 9,000 228,60 12470 86,0 14260 98,3 15170 104,6 17070 117,7 18660 128,7 

10·3/4” 273,05 109,00 162,21 1,033 26,24 10,41 8,528 216,60 17300 119,3 20160 139,0 22770 157,0 24470 168,7 26200 180,6 

11·3/4 298,45 54,00 80,36 0,435 11,05 27,01 10,724 272,38 3280 22,6 3280 22,6 3280 22,6 3280 22,6 3280 22,6 

11·3/4 298,45 60,00 89,29 0,489 12,42 24,03 10,616 269,64 10,625 269,88 4710 32,5 4710 32,5 4710 32,5 4710 32,5 4710 32,5 

11·3/4 298,45 65,00 96,73 0,534 13,56 22,00 10,526 267,35 10,625 269,88 5920 40,8 6180 42,6 6180 42,6 6180 42,6 6180 42,6 

11·3/4 298,45 71,00 105,66 0,582 14,78 20,19 10,430 264,91 6850 47,3 7650 52,7 8070 55,7 8070 55,7 8070 55,6 

11·3/4 298,45 75,00 111,61 0,618 15,70 19,01 10,358 263,09 7550 52,1 8470 58,4 9310 64,2 9730 67,1 9730 67,1 

11·7/8” 301,63 71,80 106,85 0,582 14,78 20,40 10,555 268,09 10,625 269,88 6730 46,4 7510 51,8 7810 53,9 7810 53,9 7810 53,8 

12” 304,80 68,00 101,20 0,547 13,89 21,94 10,750 273,04 5950 41,0 6240 43,0 6240 43,0 6240 43,0 6240 43,0 

12” 304,80 73,00 108,64 0,589 14,96 20,37 10,666 270,91 6750 46,6 7530 51,9 7850 54,1 7850 54,1 7850 54,1 

12” 304,80 76,00 113,10 0,610 15,49 19,67 10,624 269,84 7150 49,3 8000 55,1 8750 60,3 8750 60,3 8750 60,3 

12” 304,80 86,50 128,73 0,707 17,96 16,97 10,430 264,91 9000 62,0 10170 70,1 11260 77,7 11950 82,4 12920 89,1 

12·3/4” 323,85 57,60 85,72 0,433 11,00 29,45 11,728 297,88 2520 17,4 2520 17,4 2520 17,4 2520 17,4 2520 17,4 

12·3/4” 323,85 65,10 96,88 0,492 12,50 25,91 11,610 294,89 3730 25,7 3730 25,7 3730 25,7 3730 25,7 3730 25,7 

12·3/4” 323,85 70,10 104,32 0,531 13,49 24,01 11,532 292,91 4720 32,5 4720 32,5 4720 32,5 4720 32,5 4720 32,5 

12·7/8” 327,03 66,60 99,11 0,495 12,57 26,01 11,729 297,91 11,750 298,45 3690 25,4 3690 25,4 3690 25,4 3690 25,4 3690 25,4 

13·3/8” 339,73 61,00 90,78 0,430 10,92 31,10 12,359 313,91 2130 14,7 2130 14,7 2130 14,7 2130 14,7 2130 14,7 

13·3/8” 339,73 68,00 101,20 0,480 12,19 27,86 12,259 311,37 2980 20,6 2980 20,6 2980 20,6 2980 20,6 2980 20,5 

13·3/8” 339,73 72,00 107,15 0,514 13,06 26,02 12,191 309,64 12,250 311,15 3900 26,9 3900 26,9 3900 26,9 3900 26,9 3930 27,1 

13·3/8” 339,73 77,00 114,59 0,550 13,97 24,32 12,119 307,82 4540 31,3 4540 31,3 4540 31,3 4540 31,3 4540 31,3 

13·3/8” 339,73 80,70 120,10 0,580 14,73 23,06 12,059 306,29 5350 36,9 5350 36,9 5350 36,9 5350 36,9 5350 36,9 

13·3/8” 339,73 86,00 127,98 0,625 15,88 21,40 11,969 304,01 6210 42,8 6560 45,2 6560 45,2 6560 45,2 6740 46,5 

13·1/2” 342,90 81,40 121,14 0,580 14,73 23,28 12,153 308,68 12,250 311,15 5190 35,8 5190 35,8 5190 35,8 5190 35,8 5190 35,8 

13·5/8” 346,08 88,20 131,26 0,625 15,88 21,80 12,188 309,57 12,250 311,15 6010 41,4 6360 43,9 6370 43,9 6370 43,9 6370 43,9 

13·5/8” 346,08 105,00 156,26 0,760 19,30 17,93 11,918 302,71 12,000 304,80 8280 57,1 9330 64,3 10290 71,0 10890 75,1 11670 80,5 

14” 355,60 82,50 122,78 0,562 14,27 24,91 12,689 322,29 4210 29,0 4210 29,0 4210 29,0 4210 29,0 4210 29,0 

14” 355,60 94,80 141,08 0,656 16,66 21,34 12,501 317,52 6240 43,0 6790 46,8 6790 46,8 6790 46,8 6790 46,8 

14” 355,60 99,30 147,78 0,688 17,48 20,35 12,437 315,89 6770 46,6 7540 52,0 7880 54,3 7880 54,3 7880 54,3 

14” 355,60 103,50 154,03 0,720 18,29 19,44 12,373 314,26 7290 50,2 8160 56,2 8950 61,7 9070 62,5 9070 62,5 

14” 355,60 110,00 163,70 0,772 19,61 18,13 12,269 311,62 8140 56,1 9360 64,6 10100 69,6 10680 73,6 11270 77,7 

16” 406,40 75,00 111,61 0,438 11,13 36,53 14,937 379,39 1300 9,0 1300 9,0 1300 9,0 1300 9,0 1300 9,0 

16” 406,40 84,00 125,01 0,495 12,57 32,32 14,823 376,49 1890 13,0 1890 13,0 1890 13,0 1890 13,0 1890 13,0 

16” 406,40 94,50 140,63 0,562 14,27 28,47 14,689 373,09 14,750 374,65 2790 19,3 2790 19,3 2790 19,3 2790 19,3 2790 19,2 

16” 406,40 97,00 144,35 0,575 14,61 27,83 14,663 372,43 14,750 374,65 3000 20,7 3000 20,7 3000 20,7 3000 20,7 3000 20,7 

16” 406,40 109,00 162,21 0,656 16,66 24,39 14,501 368,32 4500 31,0 4500 31,0 4500 31,0 4500 31,0 4500 31,0 

16” 406,40 118,00 175,61 0,715 18,16 22,38 14,383 365,32 5750 39,6 5870 40,5 5870 40,5 5870 40,5 5870 40,5 

16” 406,40 128,00 190,49 0,781 19,84 20,49 14,251 361,97 6690 46,1 7460 51,4 7710 53,2 7710 53,2 7710 53,2 

16” 406,40 147,00 218,76 0,906 23,01 17,66 14,001 355,62 14,000 355,60 8470 58,4 9550 65,9 10550 72,8 11180 77,1 12050 83,1 

17 7/8” 454,00 92,78 138,07 0,500 12,70 35,75 16,500 419,10 1270 8,8 1270 8,8 1270 8,8 

17 7/8” 454,00 103,90 154,62 0,563 14,29 31,77 16,500 419,10 1800 12,4 1810 12,5 1820 12,5 

18” 457,20 121,00 180,07 0,650 16,50 27,71 16,513 419,44 2500 17,2 2520 17,4 2380 16,4 

18·5/8” 473,08 87,50 130,22 0,435 11,05 42,81 17,568 446,22 700 4,8 700 4,8 640 4,4 

18·5/8” 473,08 96,50 143,61 0,485 12,32 38,40 17,468 443,68 960 6,6 960 6,6 890 6,1 

18·5/8” 473,08 114,00 169,65 0,579 14,71 32,16 17,280 438,90 1610 11,1 1620 11,2 1510 10,4 

18·5/8” 473,08 136,00 202,39 0,693 17,60 26,88 17,052 433,12 2730 18,8 2750 19,0 2610 18,0 

18·5/8” 473,08 139,00 206,86 0,720 18,29 25,87 16,998 431,74 3060 21,1 3080 21,2 2930 20,2 

20” 508 133 197,93 0,635 16,13 31,49 18,543 470,98 1700 11,7 1710 11,8 1610 11,1 

20” 508 169 251,50 0,812 20,62 24,64 18,189 462,00 3520 24,3 3540 24,4 3390 23,4 

24” 609,6 174 258,94 0,688 17,48 34,87 22,400 568,960 1270 8,8 1270 8,8 1280 8,8 

24 1/2” 622,3 165 245,55 0,635 16,13 38,58 23,000 584,200 960 6,6 960 6,6 960 6,6 

VM 80 HC 

VM 95 HC 

VM 110 HC 

VM 125 HC 

VM 140 HC 

Other sizes, weights, grades and ratings available upon request.

V & M TUBES offers a large range of OCTG material suitable for High Collapse applications. It covers the 

requirements and parameters of the various inhospitable environments which are under the highest 

pressures. More than anywhere else, reliability is paramount and V & M TUBES provides the required 

top-of-the-class expertise, know how and guarantee. 

Full range of products 

• Size range: 4 1/2”to 26”seamless 

• Special drift on a standard basis 

• Yield Strength: 80 to 150 ksi 

• High Collapse & Sour Service 

• Connections: API and VAM ® 

• Taylor made designs Non standard OD, weight, drift or grade 

upon request 

BENEFITS 

• Full range of products 

• Full API compliance 

• 30% over API Collapse in average 

• Collapse performance guarantied 

• High Collapse & Sour Service 

• Taylor-made products and characterization 

Integrated pipe manufacturer 

• Design, process and control of proprietary steel chemistries 

• 4 steel mills in France, Germany, USA, Brazil and several pipe 

mills throughout the world dedicated to the production of 

OCTG 

• Connection threading integrated into the pipe mills or 

strategically located to serve a market 

• In-house metallurgical and Collapse testing, corrosion 

characterization and Non-Destructive Examination (NDE) 

Expertise and know-how 

• Three Research & Development laboratories with more than 

20 engineers and technicians dedicated to the design of 

improved steel chemistries 

• Capacity to perform more than 100 collapse tests and 

600 corrosion tests per month 

• All-in-one technical support: Pipe, material, VAM ® Premium 

connection and services 

Reliable Products and Services 

Supply Chain Management 

• V&M collapse model built over the years and correlated with 

more than 1800 physical test results 

• High Collapse performance guaranty 

• Sour Service resistance guaranty for proprietary High Collapse 

& Sour Service grades 

• Best-in-class quality control plan, including technologies with 

improved sensitivity to defects and enhanced control frequency 

• Full service provider: From steel making to pipe run 

in your well 

• Standardization item thanks to API compliance 

• Extensive VAM ® licensee network for field repairs or accessories 

• VAM ® Field Service International: Inspection and running 

services 

VAM ® is a registered trademark of Vallourec Mannesmann Oil & Gas France

High Collapse grades 

High Collapse grades 

High Collapse & Sour Service 

HCS/HCSS series 

HCS VM 80 HCS VM 90 HCS 

series 

HCSS VM 80 HCSS VM 90 HCSS 

series 

DIMENSION 

API Normal Drift Special Drift HIGH COLLAPSE RESISTANCE 

Size OD Nominal Weight Nominal Wall 

Thickness 

Ratio 

D / t 

Drift Diameter Drift Diameter VM 80 HCSS VM 90 HCS & HCSS VM 95 HCS & HCSS VM 110 HCSS 

in. mm lb/ft kg/m in. mm in. mm in. mm psi MPa psi MPa psi MPa psi MPa 

4·1/2” 114,30 11,60 17,26 0,250 6,35 18,00 3,875 98,43 7490 51,6 8230 56,7 8580 59,2 9590 66,2 

4·1/2” 114,30 13,50 20,09 0,290 7,37 15,52 3,795 96,39 9280 64,0 10260 70,7 11090 76,5 12100 83,5 

4·1/2” 114,30 15,10 22,47 0,337 8,56 13,35 3,701 94,01 11390 78,5 12640 87,2 13260 91,4 15050 103,8 

5” 127,00 15,00 22,32 0,296 7,52 16,89 4,283 108,79 8220 56,7 9060 62,5 9470 65,3 10620 73,2 

5” 127,00 18,00 26,79 0,362 9,19 13,81 4,151 105,44 10890 75,1 12080 83,3 12660 87,3 14350 98,9 

5” 127,00 21,40 31,85 0,437 11,10 11,44 4,001 101,63 13910 95,9 15500 106,9 16280 112,2 18580 128,1 

5” 127,00 23,20 34,53 0,478 12,14 10,46 3,919 99,55 15290 105,4 17210 118,7 18160 125,2 20890 144,0 

5” 127,00 24,10 35,87 0,500 12,70 10,00 3,875 98,43 16000 110,3 18000 124,1 19000 131,0 22000 151,7 

5·1/2” 139,70 17,00 25,30 0,304 7,72 18,09 4,767 121,08 7430 51,3 8160 56,3 8520 58,7 9510 65,6 

5·1/2” 139,70 20,00 29,76 0,361 9,17 15,24 4,653 118,19 9520 65,7 10530 72,6 11410 78,7 12440 85,8 

5·1/2” 139,70 23,00 34,23 0,415 10,54 13,25 4,545 115,44 11500 79,3 12770 88,1 13390 92,4 15210 104,9 

5·1/2” 139,70 26,80 39,88 0,500 12,70 11,00 4,375 111,13 14550 100,3 16300 112,4 17130 118,1 19570 135,0 

5·1/2” 139,70 29,70 44,20 0,562 14,27 9,79 4,251 107,99 16340 112,7 18390 126,8 19410 133,8 22470 154,9 

6·5/8” 168,28 24,00 35,72 0,352 8,94 18,82 5,796 147,22 7000 48,3 7680 52,9 8000 55,2 8910 61,4 

6·5/8” 168,28 28,00 41,67 0,417 10,59 15,89 5,666 143,92 8980 61,9 9920 68,4 10370 71,5 11680 80,5 

6·5/8” 168,28 32,00 47,62 0,475 12,07 13,95 5,550 140,97 10740 74,1 11910 82,2 12490 86,1 14150 97,6 

7” 177,80 23,00 34,23 0,317 8,05 22,08 6,241 158,52 6,25 158,75 5420 37,4 5880 40,6 6110 42,1 6110 42,1 

7” 177,80 26,00 38,69 0,362 9,19 19,34 6,151 156,24 6720 46,3 7350 50,7 7740 53,4 8510 58,7 

7” 177,80 29,00 43,16 0,408 10,36 17,16 6,059 153,90 8040 55,4 8850 61,0 9400 64,8 10370 71,5 

7” 177,80 32,00 47,62 0,453 11,51 15,45 5,969 151,61 6,00 152,40 9340 64,4 10320 71,2 11160 77,0 12180 84,0 

7” 177,80 35,00 52,09 0,498 12,65 14,06 5,879 149,33 10630 73,3 11790 81,3 12910 89,0 13990 96,5 

7” 177,80 38,00 56,55 0,540 13,72 12,96 5,795 147,19 11840 81,7 13160 90,7 13800 95,2 15690 108,2 

7” 177,80 41,00 61,02 0,590 14,99 11,86 5,695 144,65 13280 91,6 14790 102,0 15530 107,1 17700 122,1 

7” 177,80 42,70 63,55 0,625 15,88 11,20 5,625 142,88 14290 98,5 15930 109,8 16740 115,4 19120 131,8 

7·5/8” 193,68 26,40 39,29 0,328 8,33 23,25 6,844 173,84 4960 34,2 5210 36,0 5210 36,0 5210 36,0 

7·5/8” 193,68 29,70 44,20 0,375 9,53 20,33 6,750 171,45 6200 42,8 6770 46,7 7040 48,6 7800 53,7 

7·5/8” 193,68 33,70 50,15 0,430 10,92 17,73 6,640 168,66 7660 52,8 8420 58,1 8790 60,6 9830 67,8 

7·5/8” 193,68 39,00 58,04 0,500 12,70 15,25 6,500 165,10 9510 65,6 10520 72,5 11010 75,9 12420 85,7 

7·5/8” 193,68 41,00 61,02 0,537 13,64 14,20 6,426 163,22 10490 72,3 11620 80,2 12180 84,0 13790 95,1 

7·5/8” 193,68 42,80 63,69 0,562 14,27 13,57 6,376 161,95 11150 76,9 12370 85,3 12970 89,4 14720 101,5 

7·5/8” 193,68 45,30 67,41 0,595 15,11 12,82 6,310 160,27 12020 82,9 13360 92,1 14020 96,7 15940 109,9 

7·5/8” 193,68 47,10 70,09 0,625 15,88 12,20 6,250 158,75 12810 88,4 14260 98,3 14970 103,2 17050 117,6 

7·5/8” 193,68 51,20 76,20 0,687 17,45 11,10 6,126 155,60 14420 99,4 16120 111,1 16940 116,8 19340 133,3 

7·5/8” 193,68 55,30 82,30 0,750 19,05 10,17 6,000 152,40 15740 108,5 17700 122,0 18690 128,9 21640 149,2 

7 5/8” 193,68 59,20 88,10 0,812 20,62 9,39 5,876 149,25 17030 117,4 19160 132,1 20230 139,5 23420 161,5 

7·3/4” 196,85 46,10 68,61 0,595 15,11 13,03 6,435 163,45 6,50 165,10 11770 81,1 13070 90,1 13710 94,6 15580 107,5 

8·5/8” 219,08 36,00 53,57 0,400 10,16 21,56 7,700 195,58 5640 38,9 6130 42,3 6370 43,9 6580 45,4 

8·5/8” 219,08 40,00 59,53 0,450 11,43 19,17 7,600 193,04 7,63 193,68 6810 46,9 7460 51,4 7770 53,6 8640 59,6 

8·5/8” 219,08 44,00 65,48 0,500 12,70 17,25 7,500 190,50 7980 55,0 8780 60,5 9170 63,2 10280 70,9 

8·5/8” 219,08 49,00 72,92 0,557 14,15 15,48 7,386 187,60 9310 64,2 10290 70,9 10770 74,2 12140 83,7 

8·5/8” 219,08 52,00 77,39 0,595 15,11 14,50 7,310 185,67 10200 70,3 11300 77,9 11830 81,6 13390 92,3 

9·5/8” 244,48 40,00 59,53 0,395 10,03 24,37 8,679 220,44 8,75 222,25 4480 30,9 4480 30,9 4480 30,9 4480 30,9 

9·5/8” 244,48 43,50 64,74 0,435 11,05 22,13 8,599 218,41 8,63 219,08 5400 37,2 5860 40,4 6080 41,9 6080 41,9 

9·5/8” 244,48 47,00 69,94 0,472 11,99 20,39 8,525 216,53 8,63 219,08 6180 42,6 6740 46,5 7090 48,9 7570 52,2 

9·5/8” 244,48 53,50 79,62 0,545 13,84 17,66 8,379 212,82 8,50 215,90 7710 53,1 8470 58,4 8950 61,7 9900 68,2 

9·5/8” 244,48 58,40 86,91 0,595 15,11 16,18 8,279 210,28 8,38 212,73 8750 60,3 9660 66,6 10360 71,4 11360 78,3 

9·5/8” 244,48 59,40 88,40 0,609 15,47 15,80 8,251 209,57 9050 62,4 9990 68,9 10450 72,1 11770 81,2 

9·5/8” 244,48 61,10 90,93 0,625 15,88 15,40 8,219 208,76 9380 64,7 10370 71,5 10850 74,8 12240 84,4 

9·5/8” 244,48 64,90 96,58 0,672 17,07 14,32 8,125 206,37 10370 71,5 11490 79,2 12030 83,0 13620 93,9 

9 5/8” 244,48 70,30 104,62 0,734 18,64 13,12 8,001 203,22 11660 80,4 12960 89,4 13590 93,7 15440 106,5 

9·3/4” 247,65 59,20 88,10 0,595 15,11 16,39 8,404 213,45 8,50 215,90 8590 59,2 9480 65,4 9910 68,3 11140 76,8 

9·7/8” 250,83 62,60 93,16 0,625 15,88 15,80 8,469 215,11 8,50 215,90 9050 62,4 10000 68,9 10780 74,3 11780 81,2 

10” 254,00 54,30 80,81 0,531 13,49 18,83 8,782 223,06 7000 48,2 7670 52,9 7990 55,1 8900 61,4 

10” 254,00 60,30 89,74 0,595 15,11 16,81 8,654 219,80 8290 57,1 9130 63,0 9540 65,8 10710 73,8 

10” 254,00 62,20 92,57 0,618 15,70 16,18 8,608 218,64 8750 60,3 9650 66,6 10090 69,6 11360 78,3 

10” 254,00 67,50 100,45 0,672 17,07 14,88 8,500 215,89 9840 67,8 10890 75,1 11400 78,6 12880 88,8 

10” 254,00 68,90 102,54 0,688 17,48 14,53 8,468 215,08 8,50 215,90 10160 70,1 11250 77,6 11790 81,3 13330 91,9 

10·3/4” 273,05 51,00 75,90 0,450 11,43 23,89 9,694 246,22 4730 32,6 4790 33,1 4790 33,1 4790 33,1 

10·3/4” 273,05 55,50 82,59 0,495 12,57 21,72 9,604 243,93 9,63 244,48 5570 38,4 6060 41,8 6290 43,3 6440 44,4 

10·3/4” 273,05 60,70 90,33 0,545 13,84 19,72 9,504 241,39 6510 44,9 7120 49,1 7410 51,1 8220 56,7 

10·3/4” 273,05 65,70 97,77 0,595 15,11 18,07 9,404 238,85 9,50 241,30 7450 51,4 8180 56,4 8530 58,8 9540 65,8 

10·3/4” 273,05 68,80 102,39 0,636 16,15 16,90 9,322 236,77 8220 56,7 9050 62,4 9460 65,2 10610 73,2 

10·3/4” 273,05 73,20 108,94 0,672 17,07 16,00 9,250 234,94 8890 61,3 9820 67,7 10270 70,8 11560 79,7 

10·3/4” 273,05 79,20 117,86 0,734 18,64 14,65 9,126 231,79 10060 69,3 11130 76,8 11660 80,4 13190 90,9 

10·3/4” 273,05 85,30 126,94 0,797 20,24 13,49 9,000 228,60 11230 77,4 12470 86,0 13070 90,1 14840 102,3 

10 3/4” 273,05 109,00 162,21 1,033 26,24 10,41 8,528 216,60 15380 106,0 17300 119,3 18260 125,9 21040 145,1 

11·3/4 298,45 54,00 80,36 0,435 11,05 27,01 10,724 272,38 3280 22,6 3280 22,6 3280 22,6 3280 22,6 

11·3/4 298,45 60,00 89,29 0,489 12,42 24,03 10,616 269,64 10,63 269,88 4680 32,3 4710 32,5 4710 32,5 4710 32,5 

11·3/4 298,45 65,00 96,73 0,534 13,56 22,00 10,526 267,35 10,63 269,88 5450 37,6 5920 40,8 6140 42,3 6180 42,6 

11·3/4 298,45 71,00 105,66 0,582 14,78 20,19 10,430 264,91 6280 43,3 6850 47,3 7130 49,1 7890 54,4 

11·3/4 298,45 75,00 111,61 0,618 15,70 19,01 10,358 263,09 6890 47,5 7550 52,1 7870 54,3 8760 60,4 

11·7/8” 301,63 71,80 106,85 0,582 14,78 20,40 10,555 268,09 10,63 269,88 6170 42,5 6730 46,4 7000 48,3 7750 53,4 

12” 304,80 68,00 101,20 0,547 13,89 21,94 10,750 273,04 5480 37,8 5950 41,0 6170 42,6 6240 43,0 

12” 304,80 73,00 108,64 0,589 14,96 20,37 10,666 270,91 6190 42,6 6750 46,6 7020 48,4 7770 53,6 

12” 304,80 76,00 113,10 0,610 15,49 19,67 10,624 269,84 6540 45,1 7150 49,3 7440 51,3 8260 57,0 

12” 304,80 86,50 128,73 0,707 17,96 16,97 10,430 264,91 8170 56,3 9000 62,0 9400 64,8 10540 72,7 

12·3/4” 323,85 57,60 85,72 0,433 11,00 29,45 11,728 297,88 2520 17,4 2520 17,4 2520 17,4 2520 17,4 

12·3/4” 323,85 65,10 96,88 0,492 12,50 25,91 11,610 294,89 3730 25,7 3730 25,7 3730 25,7 3730 25,7 

12·3/4” 323,85 70,10 104,32 0,531 13,49 24,01 11,532 292,91 4690 32,3 4720 32,5 4720 32,5 4720 32,5 

12·7/8” 327,03 66,60 99,11 0,495 12,57 26,01 11,729 297,91 11,75 298,45 3690 25,4 3690 25,4 3690 25,4 3690 25,4 

13·3/8” 339,73 61,00 90,78 0,430 10,92 31,10 12,359 313,91 2130 14,7 2130 14,7 2130 14,7 2130 14,7 

13·3/8” 339,73 68,00 101,20 0,480 12,19 27,86 12,259 311,37 2980 20,6 2980 20,6 2980 20,6 2980 20,6 

13·3/8” 339,73 72,00 107,15 0,514 13,06 26,02 12,191 309,64 12,25 311,15 3900 26,9 3900 26,9 3900 26,9 3900 26,9 

13·3/8” 339,73 77,00 114,59 0,550 13,97 24,32 12,119 307,82 4540 31,3 4540 31,3 4540 31,3 4540 31,3 

13·3/8” 339,73 80,70 120,10 0,580 14,73 23,06 12,059 306,29 5030 34,7 5350 36,9 5350 36,9 5350 36,9 

13·3/8” 339,73 86,00 127,98 0,625 15,88 21,40 11,969 304,01 5710 39,4 6210 42,8 6450 44,5 6560 45,2 

13·1/2” 342,90 81,40 121,14 0,580 14,73 23,28 12,153 308,68 12,25 311,15 4950 34,1 5190 35,8 5190 35,8 5190 35,8 

13·5/8” 346,08 88,20 131,26 0,625 15,88 21,80 12,188 309,57 12,25 311,15 5540 38,2 6010 41,4 6240 43,0 6370 95,9 

13·5/8” 346,08 105,00 156,26 0,760 19,30 17,93 11,918 302,71 12,00 304,80 7540 52,0 8280 57,1 8640 59,6 9660 66,6 

14” 355,60 82,50 122,78 0,562 14,27 24,91 12,689 322,29 4210 29,0 4210 29,0 4210 29,0 4210 29,0 

14” 355,60 94,80 141,08 0,656 16,66 21,34 12,501 317,52 5740 39,6 6240 43,0 6480 44,7 6790 46,8 

14” 355,60 99,30 147,78 0,688 17,48 20,35 12,437 315,89 6200 42,7 6770 46,6 7030 48,5 7780 53,7 

14” 355,60 103,50 154,03 0,720 18,29 19,44 12,373 314,26 6660 45,9 7290 50,2 7590 52,3 8430 58,1 

14” 355,60 110,00 163,70 0,772 19,61 18,13 12,269 311,62 7410 51,1 8140 56,1 8590 59,2 9480 65,4 

16” 406,40 75,00 111,61 0,438 11,13 36,53 14,937 379,39 1300 9,0 1300 9,0 1300 9,0 1300 9,0 

16” 406,40 84,00 125,01 0,495 12,57 32,32 14,823 376,49 1890 13,0 1890 13,0 1890 13,0 1890 13,0 

16” 406,40 94,50 140,63 0,562 14,27 28,47 14,689 373,09 14,75 374,65 2790 19,3 2790 19,3 2790 19,3 2790 19,3 

16” 406,40 97,00 144,35 0,575 14,61 27,83 14,663 372,43 14,75 374,65 3000 20,7 3000 20,7 3000 20,7 3000 20,7 

16” 406,40 109,00 162,21 0,656 16,66 24,39 14,501 368,32 4500 31,0 4500 31,0 4500 31,0 4500 31,0 

16” 406,40 118,00 175,61 0,715 18,16 22,38 14,383 365,32 5300 36,5 5750 39,6 5870 40,5 5870 40,5 

16” 406,40 128,00 190,49 0,781 19,84 20,49 14,251 361,97 6130 42,3 6690 46,1 6950 48,0 7690 53,0 

16” 406,40 147,00 218,76 0,906 23,01 17,66 14,001 355,62 14,00 355,60 7710 53,1 8470 58,4 8840 61,0 9900 68,2 

Other sizes, weights, grades and ratings available upon request. 

VM 95 HCS 

VM 95 HCSS 

VM 110 HCSS 

Collapse & High Collapse requirements 

Among the primary functions of an Oil & Gas tubular is the preservation 

of its hole integrity enabling to further develop, maintain 

and produce the well. Casing tubulars in particular are 

expected to resist a large range of external loads which will tend 

to collapse them [1]. 

A short list of external pressure sources includes: formation or 

reservoir fluids, during exploration or production, clay and salt 

which are well known challenging formations to drill through, 

mud systems, brine or cement, sea water in riser or line pipe 

applications. 

The need for High Collapse performances arises when API grades 

cannot provide satisfactory solutions to the basic relation: collapse 

resistance - OD - ID / drift - steel grade. This is particularly 

true for : 

• Exploration wells where additional safety margins are necessary 

due to the uncertainties of the formation and pressures to be 

encountered. 

• Slim well designs where special drifts are common practice. 

• Deep and High Pressure wells which require optimization of all 

technical parameters in order to reach the pay zone with a“profitable” 

production size. 

• Deep water risers whose profitability is measured against each 

pound gained. 

• Sour Service environments where corrosion resistance adds one 

more constraint to the equation 

• Projects with the highest reliability standards (Health, Safety, 

Environment, HP-HT) which require a meaningful guarantee 

of performance 

VALLOUREC & MANNESMANN TUBES OCTG materials 

with High Collapse performance provide solutions to these growing 

challenges in a safe and reliable manner, while maintaining 

full compliance with API 5CT (ISO 11960). 

What is collapse 

Collapse resistance is a property of the pipe body itself. It is limited 

by the pipe failure in the circumferential direction when external 

pressure is applied. 

FEA simulation of Collapse 

Four failure modes have been defined [2] based on failure pattern 

observation and mechanical rules (refer to figure below). The 

“Yield”failure mode is triggered when stresses are in excess of the 

Yield strength in the hoop direction. On the other extreme, the 

“elastic”failure mode is an unstable buckling in the circumferential 

direction, occurring with stresses initially below the Yield 

strength of the material. These four domains are continuously 

positioned as a function of the ratio of the outside diameter to 

the wall thickness, or D/t ratio: 

Influencing factors 

Collapse resistance is influenced by a complex combination of 

geometrical characteristics, material properties, applied loads, 

and load conditions: 

Geometry 

o Outer Diameter (D) 

o Wall thickness (t) 

o Ovality 

o Eccentricity or wall thickness variation 

Mechanical properties 

o Yield strength 

o Young’s modulus 

o Stress - Strain curve 

o Residual stress 

Applied loads 

o Tension - Compression 

o Bending, Torsion,… 

Testing parameters 

o Length / D of tested sample 

o Parasite loads due to testing equipment 

o Pressure gradient 

Outside diameter versus wall thickness 

Collapse resistance is mainly influenced by the geometrical D/t 

ratio. In the range of OCTG products, with ratios between 10 to 

40, collapse pressure resistance varies with a factor up to 30: 

Combined loads 

Collapse resistance is influenced by additional loads: Axial tension 

and compression, bending, torsion or internal pressure.

Pipe behavior under combined loads is described by mechanical 

laws most commonly illustrated by the Von Mises Equivalent stress 

(VME) ellipse and collapse formula [2]. 

Mechanical properties 

Collapse resistance is a function of the pipe mechanical properties 

such as Yield strength, ultimate strength, Young’s modulus, or residual 

stresses. Yield strength in particular is a major contributor to 

the collapse resistance : 

External pressure chamber 

Among influencing parameters such as end-fittings, induced supporting 

loads or pressure gradient (pressure build up with time), 

the pipe sample length shows dominant influence.API 5C3 calls for 

a minimum sample length of 2 times the pipe OD. However tests 

demonstrated that only a length greater than 8 times the pipe OD 

will ensure a stabilized and conservative rating, comparable to a 

full length of pipe in the well. 

Chemical composition has some limited influence once a fully martensitic 

structure is achieved. It is reached with Quench &Tempered 

heat treatment process (Q&T) which also allows to minimize and 

control residual stresses. 

Ovality and Eccentricity 

The typical test report below shows the applied pressure up to the 

guaranteed minimum rating, followed by a hold time, then final 

pressure build up until failure. 

Ovality shows a significant effect as illustrated on the graph below [3] : 

Tests have proven that eccentricity of the pipe body does not show 

a significant influence on the collapse resistance, as long as compliance 

with API 5CT wall thickness tolerance is maintained. 

Testing parameters 

Practically, collapse resistance is measured on a portion of pipe 

that has been precisely mapped. It is then mounted into an external 

pressure chamber, submitted to hydraulic pressure and recorded. 

API collapse values 

Starting in the 1920’s, collapse calculation formulas were addressed 

in the API Society [4]. They were derived from the need to 

reconcile simple theoretical models with physical test results. In 

order to improve the predicting accuracy of these models, subsequent 

revisions of the API 5C3 standard have included new formulas 

that better account for the influential parameters. Yet, API collapse 

values derived from these formulas were given for information 

purposes only, which provided the well designer with guidelines, 

but no guarantees.

V&M Collapse prediction model 

C 

V&M TUBES started long ago to accumulate collapse testing data 

[6] [7], in order to understand the collapse phenomenon and its 

influencing factors. 

1879 collapse tests (until 12/2004) 

Effect of L/D 

D/t, Yield, … 

Combined Loads 

Bending effect 

Effect of eccentricity 

D/t, Yield, … 

1970's 

1980's 

On average, V&M TUBES provides guaranteed High Collapse 

performance values that exceed API by +25% to +40%. 

1,5 

Proprietary Grades 




This extensive knowledge is consolidated within the V & M 

proprietary collapse model as a function of the influencing parameters. 

It has demonstrated its prediction accuracy through extensive 

correlation and state-of-the-art statistical analysis. 

Testing collapse result 

R 2 = 0,9931 

Calculated collapse value 

Normal distribution 

Weibull (2 parameters) 

Weibull (3 parameters) 

Such accuracy of our collapse model, enables V&M TUBES to 

provide the industry with guaranteed higher performances. 

V&M proprietary High Collapse grades 

1990's 

2000's 

V&M High Collapse grades for seamless pipes are designed by 

selecting and controlling the most influential parameters. 

Subsequently the model is used to calculate the external pressures 

of the full product line i.e. each size, weight and grade. 

High Collapse / API 

1,4 

1,3 

1,2 

1,1 

1,0 

0,9 

10 15 20 25 30 35 40 

D/t ratio 

Thus alternate solutions are made available by V&M TUBES High 

Collapse grades: 

Consider 13 3/8” 72# VM110HC w/ 3900 psi Collapse instead of 

13 3/8”72# P110 w/ 2880 psi Collapse for your exploration 

campaign, with +35% safety margin 

Consider 9 5/8”53.50# VM110HC w/ 10550 psi Collapse instead of 

9 7/8”62.80# P110 w/ 10280 psi Collapse for OD clearance 

and 17% weight reduction, still preserving your drift at 8.5” 

Consider 7”26# VM110HC w/ 8620 psi Collapse instead of 7”32# 

N80 w/ 8600 psi Collapse for your tubing application, with 

+6% production flow 

Consider 9 5/8”47# VM95HC w/ 7420 psi Collapse instead of 9 5/8” 

53.50# C95 w/ 7340 psi Collapse for your riser system, with 

11% weight gain 

Consider 10 3/4”65.70#VM110HCSS w/ 8530 psi Collapse instead of 

10 3/4”71.10# T95 w/ 8480 psi Collapse for your HP-HT 

& Sour Service well 

Consider 10 3/4” 109# VM110HCSS w/ 21040 psi Collapse along 

with 9 7/8”62.80# T95 w/ 8480 psi Collapse to go through 

a salt dome or clay section of your drilling program, still 

preserving your drift 8.5” 

Combining High Collapse and Sour Service 

V&M TUBES has combined its expertise on High Collapse applications 

along with that on Sour Service material to cope with the 

most demanding environments [5]. This has lead to the High 

Collapse & Sour Service product line. It is composed of 2 series to 

fulfill the customers’ requirements with regard to the mechanical 

properties and level of reliability. 

HC 

API 

V&M TUBES High Collapse grades cover the full range of sizes 

and weights from 4 1/2”to 26”, grades from 80 KSI to 150 KSI, 

and offer special drifts on a standard basis without collapse derating. 

While strictly compliant with API standards, V&M Tubes 

High Collapse grades are delivered with the guarantee of their 

minimum High Collapse rating.

HCS series “Time Saving” 

• Available in grades 90 and 95 ksi 

• Same chemistry and process as HCSS series. 

• High Collapse values guaranteed 

• 85% SMYS threshold stress guarantee, higher than 80% inAPI. 

• Reduced delivery time, as fast as standard grades, thanks to the 

mill quality records that prove SSC resistance without additional 

NACE method A test. 

HCSS series “Enhanced API” 

• Available in grades 80 to 110 ksi. 

• Fully compliant with API (or its QA/QC philosophy for VM 

110 HCSS grade) 

• High Collapse values guaranteed 

• 85% / 90% SMYS threshold stress guarantee, higher than 80% 

in API 

• Delivered with NACE methodA test, performed on actual order 

Please refer to the V&M TUBES Sour Service Grades Leaflet for 

further information. 

The added value of 

V&M High Collapse solutions 

• Full range of sizes, weights and grades, with special 

drifts on a standard basis. 

• Full compliance with API, making it a standardization 

item 

• An average 30% extra performance in Collapse 

over API rating and up to 40% 

• The guarantee of this performance versus API 

only recommended values 

• Sour Service compliant combinations 

• Alternate solutions for your well optimization for 

safety factors, weight, clearance, flow rate and 

multiple combinations 

• Integrated offer with VAM ® Premium connections 

Fit-for-purpose approach 

Beyond API and proprietary High Collapse grades, “taylormade”products, 

services, or characterization may be required to 

fulfill customer’s highest profile projects. V&M TUBES offers a 

complete engineering approach to satisfy specific needs including: 

• Non-standard,“taylor-made”OD, wall thickness or grade 

• Odd drift sizes to fit to your personalized well design 

• Immediate HC evaluation with theV&M reliable collapse model 

• Even higher collapse values with its associated guarantee, upon 

request 

• Evaluation of additional chemical and mechanical properties 

or corrosion resistance (NACE-D) 

• Collapse testing 

• Segregation plan based on wall mapping and dimensional scanning 

(C-scan) 

First class processing capacity 

Steel elaboration is processed in 4 own 

mills in France, USA, Brazil and 

Germany including the long-lasting relationship 

with German first-class supplier 

HKM. Combined capacity and supply 

sources is 3.5 million tons per year. 

Equipment includes electric furnaces fed 

from scrap, blast oxygen furnaces fed 

with iron ore, vacuum degassing batches, 

continuous cast to produce steel rounds 

and forging equipment. 

Pipe manufacturing is processed in 11 

mills in France, Germany, UK, USA, 

Brazil and Indonesia with CitraTubindo 

in which V&M TUBES holds a 25% 

share. Combined capacity reaches 2.7 

million tons seamless pipe per year. 

Equipment includes: 

Advanced hot-rolled processes: Pilger mill, continuous mandrel 

mill, plug rolling mill, MPM mill,… 

Heat treatments with computer controlled austenitizing and tempering 

furnaces, internal and / or external quenching units, with 

water, oil or air, followed by hot straightening to minimize residual 

stresses. 

Non-destructive evaluation on or off line, including the latest 

ultra-sonic technology like phased-array, capturing defects twice 

as small as API, wall thickness measurements, ovality checks, and 

wall mapping (C-scan). 

Pipe finishing for the OCTG market includes full length mill 

threading and associated stock management in 9 facilities around 

the world, in France, Germany, UK, USA, Canada, Mexico, 

Brazil and Indonesia. It also includes : 

• The VAM ® Licensee network of more than 120 accessory threading 

and repair shops around the world 

• The VAM ® quality system, documentation and gauge rental 

managed by VAM ® Services 

• The VAM ® Field Service centres, that closely service your operations 

and make the best out of VAM ® . 

References 

[1] Selected Topics and Applications of Probabilistic OCTG Design - Oil Country 

Tubular Goods, Mike L. Payne et al. , World Oil, July 1998. 

[2] Petroleum and Natural Gas Industries - Formulae and Calculation for Casing, 

Tubing, Drill Pipe, and Line Pipe Properties, ISO/DIS 10400 (to become API 

5C3 7 th Edition) 

[3] Elastomeric Collapse of Tubes under External Pressure, E. Heise, E.P. Esztergar, 

Trans. ASME Series B, Journal of Engineering for Industry, Vol.92, 1970 

[4] The Tube in the Oil Industry, Mannesmannröhren-Werke, p 23-25, 1929 

Edition. 

[5] Evolution of Material Requirements and Products Answer for Critical 

Environments, E. Lepine et al. , SPE 97581, April 2005. 

[6] Beitrag zur Berechnung der Aussendruckfestigkeit von Futterrohren, 

R. Juergens, Diss. TU Clausthal, 1973 

[7] Außendruckfestigkeit von Ölfeldrohren unter kombinierter Belastung, 

G. Krug, C. Marx, Erdöl-Erdgaszeitschrift, 1980

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