Welded black steel pipe enjoyed a high reputation throughout the world.It is widely exported to many countries.
Standard : GB 150 GB 151 GB 699 GB/T14976 GB/T8163 GB 13296
Main steel Grade:10,20,20G, 1Cr18Ni9Ti, 0Cr18Ni9,09CrMoAl, 07Cr2AlMo etc.
We can supply other materials below:
| Casing Pipe/Oil pipe Seamless or welded According to API-5CT standard | J55/K55/N80/P110/M65/C95,LTC/STC/BTC; EUE/NUE |
| Seamless line pipe/API-5L | PSL 1.A25/A/B/X42/X46/X52/X56/X65/X70/X80 |
| PSL 2:B/X42/X46/X52/X56/X60/X65/X70/X80 | |
| Carbon seamless pipe SMLS/ERW/LSAW/SSAW | 1. A20-C St52.4/St52 STS49 2. ASTM A106 GR.A/B/C; ASTM A53 GR.A/B/API 5L-GrB 3. DIN1629 4. JIS G3454 5. ASTM A192/A210/A179 6. DIN17175 7. JIS G345 8. JIS G3456 9. BS1387 10. GB/T6728,ASTM A500,EN10217,Q195-235 11. ST35.8/ST45.8 12. DIN2448 13. DIN1629 |
| Alloy pipe Alloy pipe Seamless or welded | ASTM/ASME A/SA 210(Gr,A1,C),556,213(T1,T2,T5,T9,T11,T12) 335(Gr P1,P2,P5,P9,P11,P12,P22) 333Gr.1,3,6209T1,T1A,T1b DIN17175(Gr.4538,15Mo3,13CrMo44,10CrMo910) 2448(Gr.ST37),1630(ST37.4,44.4),BS3059(Gr CFS 360,440,243,60,622-440,622-490) 980(Gr.CDSI),6323(CFS3),3602/1(Gr.360,430) A335-P1 15Mo3 STPA12 A335-P2/A213-T2 STBA20 A335-P2/A213T12 13CrMo44 STBA22 A335-P22.A213T22 10CrMo910 STBA24 A335-P5/213-T5 12CrMo195 StA25 A335-P91/A213-T91 |
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Stainless steel pipe Seamless or welded | 304(3040Cr18Ni9) 304(00Cr19Ni10) 321(1Cr18Ni9Ti) 321(00Cr18Ni12Mo2Ti) 310S(0Cr25Ni20) 310S(1Cr25Ni20Si2)904L (00Cr20Ni25Mo4) |
Usage: widely used in water providing, gas transportation, construction scaffolding, also used as the base of galvanized steel pipe.




