Cangzhou Bohai Pipe Co., Ltd. specializing in the production of alloy steel elbow with reference to specific analytical methods GB223-84 "steel and alloy chemical analysis method," the relevant section. 5.3, analytical bias reference GB222-84 "steel chemical assays and finished chemical composition and permissible variations." 6, alloy pipe welding technology for increasing argon protected areas and enhance the protective effect of alloy steel elbow, can be a large-diameter gun porcelain mouth, increased torch argon gas flow. When argon gas flow significantly impede the flow of the nozzle spatter adhesion. You must spatter remove or replace the nozzle. When the tungsten tip contamination occurs sell steel elbow, irregular shape and so when it is necessary to repair or replace. Tungsten should not extend outside the nozzle. Control of welding temperature is mainly controlled welding speed and the welding current size. The results showed that a large current, fast welding can effectively prevent the generation of holes. This is mainly due to the welding process at a faster speed penetration welds, molten metal heating time is short 15CrMo alloy steel elbow, little chance to absorb the gas. Cangzhou Bohai Ltd. specializes in the production of alloy steel elbow pipe Introduction P22 alloy tube fittings biggest advantages is 100% recyclable, environmentally friendly, energy-saving, resource conservation national strategy 16Mn alloy steel elbow, national policy to encourage the expansion of high-pressure alloy pipe applications. Currently the proportion of the total accounted for steel alloy tube of the developed countries consume only half, P22 alloy tube to expand the field of use to provide a broader space for the development of the industry. According to China Association of alloy steel pipe branch, the average annual growth of China's future demand for long products of high alloy pipe up to 10-12%. Production of alloy steel elbow, Cangzhou Bohai (certified), alloy steel elbow Ltd provided by Cangzhou Bohai tube. Cangzhou Bohai Tube 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.