Cangzhou Bohai Steel Pipe Co., Ltd. production and supply of steel elbow elbow quotes, cheap. The main alloying elements silicon alloy tube, manganese, chromium, nickel, molybdenum, tungsten, vanadium, titanium, niobium, zirconium, cobalt, aluminum, copper, boron, rare earth alloy steel tube in addition to iron, carbon, and a small amount of non- than silicon, manganese, phosphorus, sulfur alloy steel elbow to avoid, but also contain a certain amount of alloying elements in steel alloying elements silicon, manganese, molybdenum, nickel, Ge, alumina, titanium, niobium, boron, lead, rare earth in which one or more high-pressure steel elbow, this steel alloy called each of the alloy system, with its own resources, production and use of different conditions in different Cangzhou Bohai Pipe Fittings Co., Ltd. specializes in producing steel bending head P91 alloy pipe 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, the wall and the outer diameter than the negative deviation after clearing. Alloy steel elbow, steel elbow Hebei Cangzhou Bohai (Certified Merchant) Ltd provided by Cangzhou Bohai fittings. Cangzhou Bohai Pipe Fittings Co., Ltd. (www.czbh628.com) is specialized in the "elbow, flanges, reducers, hangers, flanging, intubation, welded flanges, pipe wear" business, Companies adhering to the "honesty, hard service" concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Zhangsong Wei.