Cangzhou Bohai Steel Tube Co., Ltd. specializes in producing alloy pipe elbow P91 GB / T8162-87 provisions 4.1 specification: Hot tube diameter 32 ~ 630mm. Wall thickness of 2.5 ~ 75mm. Cold-rolled (cold drawn) tube diameter 5 ~ 200mm. Wall thickness of 2.5 ~ 12mm. 4.2, the appearance of quality: the inner and outer surfaces of the steel pipe shall not have cracks, folded, rolled off, separation, hairline and scarring defects. These defects should be completely removed steel elbow prices, the wall and the outer diameter than the negative deviation after clearing. Cangzhou Bohai Pipe Fittings Co., Ltd. specializes in producing all kinds of steel 15CrMo alloy steel elbow pipe welding thick-walled high-pressure welding using two schemes are feasible. In order to ensure that the weld metal to match the performance of the same mother and has a high heat resistance alloy steel elbow, better use of the program Ⅰ produce steel elbow, the key is to post weld heat treatment process must be strictly controlled. After the program Ⅱ weld heat treatment can be omitted, although direct steel elbow, but migration and diffusion welding of carbon at high temperatures resulting in the possibility of weld failure can not be ignored, so only the post-weld heat treatment can not be careful when using . 16Mn alloy steel elbow, steel elbow, Ltd. Cangzhou Bohai provided by Cangzhou Bohai fittings. Cangzhou Bohai Pipe Fittings Co., Ltd. (www.czbh628.com) (www.hbbh628.com) strong, credible, and other industries in Hebei Cangzhou tee accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Cangzhou Bohai and you hand into the brilliant, for a better future!