STEEL PIPE IN SEAMLESS AND HF WELDING
SEAMLESS STEEL PIPE
| Standard | Grade |
| ASTM/ASME A/SA 106 | Gr. A, B, C |
| JIS G3452 | Gr. STPG 370, STPG 410, STPG510 |
| JIS G3461 | Gr. STB 340, STB 410, STB 510 |
| JIS G3456 | Gr. STPT 340, STPT 410, STPT 510 |
| EN 10216-2 | Gr. P235GH, P355GH |
SEAMLESS STEEL PIPE FOR LOW TEMP. SERVICES
| Standard | Grade |
| ASTM/ASME A/SA 333 | Gr. 1, 3, 4, 6, 7, 8, 9, 10, 11 |
SEAMLESS FERRITIC ALLOY STEEL PIPE FOR HIGH TEMP. SERVICES
| Standard | Grade |
| ASTM/ASME A/SA 335 | Gr. P1 ~ P911 |
SEAMLESS STEEL TUBE
| Standard |
| ASTM/ASME A/SA 192, SA 179, SA 210
ASME SA 213 T1 ~ T91 |
SEAMLESS / HF ERW STEEL PIPE
| Standard | Grade |
| ASTM/ASME A/SA 53 | Gr. A, B, C |
| API 5l | Gr. A ~ X70 PSL1, PSL2 |
STRUCTURAL STEEL PIPE AND HOLLOW SECTION
| Standard | Grade |
| ASTM A500 | Gr. A, B, C |
| JIS G3444 | Gr. STK 400, STK 490, STK 540 |
| JIS G3466 | Gr. STKR 400, STKR 490 |
| EN 10219, EN 10210 | Gr. S235JRH, S235J2H, S275JRH, S275J2h, S355JRH, S355J2H |