Before delving into the topic of 15CrMoG alloy high-pressure boiler tubes, we first need to understand their basic concepts and characteristics. 15CrMoG alloy high pressure boiler tube, as an important industrial material, with its excellent high temperature resistance, pressure resistance and oxidation resistance, plays an irreplaceable role in all kinds of boilers and high pressure vessels.
15CrMoG alloy high pressure boiler tube 15CrMoG alloy seamless steel pipe
Product specifications: Outer diameter 21.3mm~1020mm, wall thickness 2.0~150mm.
Seamless steel pipe shall comply with the requirements of TSG D7002 pressure pipe element type test rules.
Chemical composition of 15CrMoG alloy steel pipe: Carbon: 0.12~0.18, Silicon: 0.17~0.37, manganese: 0.40~0.70, chromium: 0.80~1.10, molybdenum: 0.40~0.55, nickel: ≤0.30, copper ≤0.20, phosphorus: ≤0.025, sulfur: ≤0.020
15CrMoG alloy high-pressure boiler tube heat treatment system: 900℃~960℃, normalizing: 660℃~730℃ tempering.
Mechanical properties: Tensile strength: 440~640, yield strength ≥235, elongation after breaking longitudinal ≥21, elongation after breaking transverse ≥19, impact work longitudinal ≥40, impact work transverse ≥27, Brinell hardness ≤170HBW, Vickers hardness ≤180HV, Rockwell hardness ≤88HRB
Production method: hot rolling, cold drawing, hot expansion. Delivery condition: Heat treatment.
