ASTM steel pipe,ASTM elbow,ASTM fitting_Hebei Zhongyue Pipe Fittting Co.,Ltd

Chemical composition: Carbon C:0.37~0.44 Silicon Si:0.17~0.37 Manganese Mn:0.50~0.80 Sulfur S: less than 0.025 Phosphorus P: 0.025 Chromium Cr:0.60~0.90 Nickel Ni:1.25~1.65 Copper Cu: less than 0.25 Molybdenum Mo:0.15~0.25 Mechanical proper...

process flow: GB/T8162-2008 (structure for seamless steel pipe). It is mainly used in general structure and mechanical structure. Its representative material (grade): carbon steel 20, 45 steel; alloy steel Q345, 20Cr, 40Cr, 20CrMo, 30-35CrM...

Production process: The longitudinal welded pipe has the advantages of simple production process, high production efficiency, low cost and rapid development. The strength of a spiral welded pipe is generally higher than that of a straight w...

Spiral steel pipe is a spiral seam steel pipe made of rolled steel strip as raw material, often warm extruded and welded by automatic double wire submerged arc welding technology. The spiral pipe is sent to the welded pipe unit by the steel...

The straight steel pipe is a steel pipe longitudinally parallel to the steel pipe. They are usually divided into metric welded pipe, welded thin-walled tube, transformer cooling oil pipe and so on. The longitudinal welded pipe has the advan...