| Standard | Type of pipe | Class | Grade |
| API SPEC 5LISO 3183 | SMLS | PLS1 | L245B, L290 X42, L320 X46 , L360 X52,L390 X56, L415 X60, L450 X65, L485 X70 |
| PLS2 | L245N BN, L290N X42N, L320N X46N,L360N X52N, L390N X56N, L415N X60N,L360Q X52Q, L390Q X56Q, L415Q X60Q , L485Q X70Q |
| PLS2 Sour Environment | L245NS BNS, L290NS X42NS, L320NS X46NSL360NS X52NS, L390NS X56NS, L415NS X60NS,L360QS X52QS, L390QS X56QS, L415QS X60QS L485QS X70QS |
| WELD | PLS1 | L245B, L290 X42, L320 X46, L360 X52L390 X56, L415 X60, L450 X65, L485 X70 |
| PLS2 | L245M BM, L290M X42M, L320M X46M,L360M X52M, L390M X56M, L415M X60M,L450M X65M, L485M X70M, L555M X80M, |
|
|
|
|
|
|
|
Grade:
| Standard | Grade |
| ASTM A 53 M | A , B |
| ASTM A 106M | A, B, C |
| JIS G 3454 | STPG 370, STPG 410 |
| JIS G 3455 | STPG370, STPG410, STPG480 |
| JIS G 3456 | STPG370, STPG410, STPG480 |
Note: Grades other than the a.m. chart can be made available through consultations.
Chemical Composition (%):
| Standard | Grade | C | Si | Mn | P | S | Ni | Cr | Cu | Mo | V |
| ASTMA53M | A | ≤0.25 | - | ≤0.95 | ≤0.05 | ≤0.045 | ≤0.40 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.08 |
| B | ≤0.30 | - | ≤1.20 | ≤0.05 | ≤0.045 | ≤0.40 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.08 |
| ASTM A 106M | A | ≤0.25 | ≥0.10 | 0.27-0.93 | ≤0.035 | ≤0.035 | ≤0.40 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.08 |
| B | ≤0.30 | ≥0.10 | 0.29-1.06 | ≤0.035 | ≤0.035 | ≤0.40 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.08 |
| C | ≤0.35 | ≥0.10 | 0.29-1.06 | ≤0.035 | ≤0.035 | ≤0.40 | ≤0.40 | ≤0.40 | ≤0.15 | ≤0.08 |
| JIS G 3454 | STPG 370 | ≤0.25 | ≤0.35 | 0.30-0.90 | ≤0.040 | ≤0.040 | - | - | - | - | - |
| STPG 410 | ≤0.30 | ≤0.35 | 0.30-1.00 | ≤0.040 | ≤0.040 | - | - | - | - | - |
| JIS G 3455 | STS 370 | ≤0.25 | 0.10-0.35 | 0.30-1.10 | ≤0.035 | ≤0.035 | - | - | - | - | - |
| STS 410 | ≤0.30 | 0.10-0.35 | 0.30-1.40 | ≤0.035 | ≤0.035 | - | - | - | - | - |
| STS 480 | ≤0.33 | 0.10-0.35 | 0.30-1.50 | ≤0.035 | ≤0.035 | - | - | - | - | - |
| JIS G 3456 | STPT 370 | ≤0.25 | 0.10-0.35 | 0.30-0.90 | ≤0.035 | ≤0.035 | - | - | - | - | - |
| STPT 410 | ≤0.30 | 0.10-0.35 | 0.30-1.00 | ≤0.035 | ≤0.035 | - | - | - | - | - |
| STPT 480 | ≤0.33 | 0.10-0.35 | 0.30-1.00 | ≤0.035 | ≤0.035 | - | - | - | - | - |
