Special steel seamless pipe project is the company major project during our national the twelfth five-year plan, which was invested 6.9 billion RMB to build the world’s biggest production base of Bi-metal pipe, special seamless steel pipe.

Nickel alloy ,Austenite, ferriAmerican Standard： ASME SA312, ASME SA213, SATM A269, ASTM A376, ASTM A511, ASME SB677, ISO 15156-3, ASTM A959; ASTM A789/ASME SA789, ASTM A790/ASME SA790,ISO13680/API 5CRA,ASME SB444, ASME SA268/A268M TP446-1, ASME SB423, ASME SB163, ASME SB407, ASME SB167, ASME SB622 European Standard: DIN17456, DIN17458, EN10216-5,EN10088-3 1.4418 ,DIN EN10095 1.4713, Japanese Standard: JIS G3463, JIS G3459 Chinese Stardard: GB/T14976, GB13296, GB5310 ; GB/T21833 TP304,TP304L,TP316,TP316L,TP347,TP347H,T91,TP321,TP310S,TP310H,TP309S,TP309H,S32750,S32760,S32205,S31803,S32707,S33207,N08028,S41426,N08535,N08135,N08825,N06985,N10276,N06600,N06690, API Tubing and casing ( API 5CT): J55,K55, N80-1, N80-Q, L80-1,C90-1,R95, T95-1, C110, P110, Q125-1 9Cr/13Cr Tubing ( API 5CT) : L80-9Cr, L80-13Cr, C95-SPI-13Cr, P110-SPI-13Cr, C95-SP2-13Cr, P110-SP2-13Cr Tubing and casing of sulfur resistant: 80S, 80SS, 90S, 90SS, 95S, 95SS 4140,4145 Downhole pipes (ASTM A519-2006): 4140, 4145 Drill pipe: E75, X95, G105, S135 Line pipe（API SPEC 5L）: PSL-1 : L245B, L290/X42, L320/X46 ,L360/X52, L390/X56, L415/X60, L450/X65, L485/X70； PSL-2: L245N/BN, L290N/X42N, L320N/X46N, L360N/X52N, L390N/X56, L415N/X60N （GB/T9711-1）:L245, L290, L320, L360, L390, L415 Boiler Tube & Pipe : GB5310 : 20G, 20MnG, 25MnG, 15MoG, 20MoG, 12CrMoG,15CrMoG,12Cr2MoG, 12CrMoVG,, 12Cr2MoWVTiB, 10Cr9Mo1VNbN.

ASME SA210M: SA210-A1, SA210-C ASME SA213,ASME SA335: T2,T5,T5b,T5cT9,T11,T12,T21,T22,T23,T36,T91,T92 Tube&pipe for mechanical structure (GB/T8162): 20Mn,25Mn,20Cr,40Cr,12CrMo,15CrMo,35CrMo,42CrMo,12CrMoV,38CrMoAl,20CrMn,30CrMnSi,30CrMnTi,40CrNiMoA Automobile(YB/T 5035): 45,20Mn2,45Mn2, Hydraulic p