Cangzhou Bohai Pipe Fittings Co., Ltd. specializes in alloy steel elbow 12cr1mov introduce beginning ① two numbers indicate the carbon content of steel to the average carbon content of the few that, as 40Cr, 25Cr2MoVA alloy tube ② the main alloying elements in steel, in addition to individual micro-alloying elements, generally a few percent. When the average alloy content of <1.5%, steel, generally marked only bend steel plant element symbols, not marked content alloy steel elbow chemical, but prone to cause confusion in exceptional circumstances, after the element symbol can also be marked with the number '1', such as steel '12CrMoV' and '12Cr1MoV', the former chromium content of 0.4-0.6%, which is 0.9-1.2%, and the remaining ingredients are all the same. When the average content of alloying elements ≥1.5%, ≥2.5%, while ≥3.5% ......, in the back of the element symbols should be marked content, can be expressed as the corresponding 2,3,4 ...... etc. For example 18Cr2Ni4WA. Cangzhou Bohai Steel Tube Co., Ltd. specializes in producing standard elbow 16Mn steel 16Mn standard elbow, 16Mn alloy steel grades in the old national standard GB / T1591-1988 high strength low-alloy structural steel elbow offer, the new national standard GB / T1591 -2008 The grades for the Q345 (Q345 have five quality grades, Q345A ~ Q345E), Q345A corresponding to ASTM grade is Gr · 50.16Mn hardness: 16Mn hardness can not use HRC, generally 140HBS, if you must use HRC conversion, 140/10 on the line 16mn seamless steel pipe sizes and grades of steel elbow allows manufacturers, Cangzhou Bohai (certified), alloy steel elbow Ltd provided by Cangzhou Bohai 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.