Cangzhou Bohai Pipe Co., Ltd. specializes in producing seamless steel elbow p22 and its different uses into the following varieties: GB / T8162-2008 (structure seamless steel pipes). Mainly used for general structure and mechanical structure. The representative of material (grade): Carbon steel 20,45 steel; steel Q345,20Cr, 40Cr, 20CrMo, 30-35CrMo, 42CrMo and so on. GB / T8163-2008 (transmission fluid with seamless steel tubes). The main pipeline for transporting fluid engineering and large-scale equipment. Representative material (grade) for 20, Q345 and so on. Cangzhou Bohai Steel Tube Co., Ltd. specializes in elbow 12Cr1MoV 12Cr1MoV alloy steel elbow, unified digital code: A31132. Standard: GB / T3077-1999 main features 12Cr1MoV steel and alloy pipe steel elbow 12CrMoV compared to P91, has a higher oxidation resistance and heat resistance. Creep limit and lasting value 12Cr1MoV strength steel alloy steel elbow is very close to DN150, and in the case of persistent tension has high plasticity; steel manufacturability and good weldability, but before welding to be preheated to 300 ℃, In addition to the stress treatment required after welding. P22 steel elbow | elbow steel | Cangzhou Bohai Ltd provided by Cangzhou Bohai tube. Cangzhou Bohai Tube Co., Ltd. (www.czbh628.com) (www.hbbh628.com) strong, credible, three-way, etc. Hebei Cangzhou accumulated a large number of loyal customers. The company better work attitude and constantly improving Cangzhou Bohai innovative ideas will lead into the brilliant and you work for a better future!