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Pipe Prefabrication Duplex & Super Duplex Steel

Pipe prefabrication is an indispensable part in the modularization of ship construction, petrochemical and power plant pipeline construction. It has the advantages of convenient installation, short construction period and reliable performance.

Carbon steel, low temperature pipeline steel, stainless steel, dual phase steel, nickel base alloy –Pipe Prefabrication

Cangzhou Enfei Pipe Equipment Co., Ltd. is an excellent pipe prefabrication production and manufacturing enterprise in China. Pipe prefabrication is widely used in modular construction such as ship construction, petrochemical industry, power plant pipeline and natural gas pipeline. Due to the convenience of pipe prefabrication installation, short construction period, convenient welding heat treatment and inspection, it is favored by many engineering projects.

Welding of pipe prefabrication

Pipe spools are fabricated from a number of raw pipes and pipe fittings (e.g. elbows, flanges, tees, etc.) in fabrication shops. Raw pipes are cut to the required sizes and moved with pipe fittings to a fitting table, where some of the components are fitted together (i.e. temporarily connected). The resulting sub-assembly (part of the final pipe spool) continues with welding operations (i.e. permanent connected) before it comes back to the fitting table and gets fitted with other spool components.

Welding of pipe prefabrication Enfei

The Pipe Prefabrication materials produced by Cangzhou Enfei Pipe Equipment Co., Ltd. include: ASTM A53B, ASTM A106B ASTM A312 TP304 TP304L TP316L TP321、ASTM A335 P5 P9 P11 P12 P22 P91 WB36、S31803 S32205 S32750 S32760 904L 254SMO 、ASTM/ASME SB466 UNS NO.C70600(CU/NI-90/10),C71500(CU/NI-70/30)、ASTM/ASME SB336,ASME SB564/160/163/472,UNS2200(NICKEL200)UNS2201(NICKEL201),UNS4400(MONEL400),UNS8020(ALLOY20/20 CB3),UNS8825 INCONEL(825),UNS6600(INCONEL600),UNS6601(INCONEL601),UNS6625(INCONEL625), Uns10276 (Hastelloy C276), etc.

Welding of pipe prefabrication in china

In the above 45 ° butt welding elbow production materials, our dual phase steel meets S32750 / S32760 PREN (% Cr + 3.3% Mo + 16% N) ≥ 40, S31803 / S32205 N = 0.14-0.2% and PREN (% Cr + 3.3% Mo + 16% N) ≥ 34, the product thickness is SCH10S SCH20S SCH40S SCH80S STD-SCHXXS, and the product specification is 1/8-60 inches to meet customers’ various choices.

Welding of pipe prefabrication

Industrial Steel Flanges Test Certificates: Cangzhou Enfei Pipe Equipment Co., Ltd. offer its Products with Third Party Inspection also. The Inspection Agency can be nominated by clients or Dynamic Forge & Fittings can be arrange the TPI by World reputed Agencies like Bureau Veritas, ABS, NKClass,SGS and many other.

Pipeline prefabrication process diagram



Contact Form Demo (#3)