Cangzhou Bohai Pipe Fittings Co., Ltd. specializes in alloy steel elbow 12Cr1MoV, unified digital code: A31132. Standard: GB / T3077-1999 12Cr1MoV main characteristics compared to steel and alloy pipe 12CrMoV alloy steel elbow 90 degrees, with higher oxidation resistance and heat resistance. 12Cr1MoV steel creep limit value is very close and lasting strength, and has a high plasticity in the case of persistent tension; the process of steel with good weldability steel elbow 45 degrees, but before welding preheat to 300 ℃ 180 alloy steel elbow, in addition to stress treatment after welding required. Cangzhou Bohai Tube Co. specializing in the production of alloy steel elbow ends of excellent inexpensive steel pipe should be cut at right angles, and clear the glitch. Pipe wall thickness greater than 20mm to allow hot gas cutting and sawing. Agreement by both parties may not cut head. 4.4, drawn or cold rolled precision P91 alloy tube "surface quality" reference GB3639-83.5, chemical composition test 5.1, according to the chemical composition and mechanical properties of the domestic supply of P91 alloy tube, such as 10,15,20,25,30 chemical composition and steel 35,40,45 No. 50 shall conform to GB / T699-88 of. Imported P91 alloy tube according to the provisions of the contract relating to the standard test. Chemical composition 09MnV, 16Mn, 15MnV steel shall conform to GB1591-79 of. 45 degree elbow _ cheap steel (certified) _ Datong Steel Limited provided by Cangzhou Bohai elbow fittings. Cangzhou Bohai Pipe Fittings Co., Ltd. (www.czbh628.com) (www.hbbh628.com) is an industry leader in Cangzhou, Hebei, three, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customers needs. Cangzhou Bohai leadership with the staff warmly welcome all inquiries negotiations to create a better future Cangzhou Bohai.