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 Mengcun dragon Acer seamless steel pipe professional management .377 * 12 20 # material, thickness range, with large spot, low price and good quality. Welcome to the new and old customers to inquire. Steel management of performance test: 1. Tensile test: measuring stress and deformation of the material intensity determination (YS, TS) and plasticity index (A, Z) vertical and horizontal sample tube segment, curved, circular sample (￠ 10, ￠ 12.5) small-diameter, thin-walled large diameter, thick gauge set. Note: the sample and the sample size Elongation related to GB / T 1760 2. Impact Test: CVN, the gap C, V-type, power J value J / cm2 standard sample 10 × 10 × 55 (mm) Non-standard Sample 5 × 10 × 55 (mm) 3. Hardness test: Brinell hardness HB, Rockwell hardness HRC, Vickers hardness HV, etc. 4. hydraulic test: the test pressure, the regulator of time, p = 2Sδ / D mengcun dragon Hongye steel pipe, located in known as "China elbow pipe capital" Mengcun Hui Autonomous County, Hebei Province. Ideally high-pressure boiler seamless steel pipe manufacturers, transport facilities, the company strong, "quality of survival, innovation and development" purposes, to serve the new and old customers. Q345 similar name: Q345A, Q345B seamless steel pipe, Q345C petroleum cracking seamless steel pipe manufacturers, Q345D, Q345E. This is a class distinction represents 273 * 10 seamless steel pipe manufacturers, the main impact of the temperature differs from mine! Q345A level, is not to shock; Q345B grade is 20 degrees room temperature impact; Q345C level, is 0 degree impact; Q345D level is -20 degrees impact; Q345E level is -40 degrees shock. The impact of different temperature, shock value are different. In the plate, the case of low-alloy series. In low-alloy material where such material is the most common. Q345 past way of talking to: 16Mn. High-pressure boiler seamless steel pipe manufacturers | seamless steel pipe | mengcun steel dragon dragon by Mengcun Hui Autonomous County Hongye steel center. Mengcun Hui Autonomous County dragon Wang Yip Pipe Center (www.hebeizhihang.com/)(www.mcflgg.com) strong, credible, Cangzhou in Hebei steel industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead pipe and you work mengcun dragon into the brilliant, for a better future!