Make the standard:
GB/T16507、GB/T16508
Type:
Tube sheets, script, waveform, bending, plate of boiler tube
Material:
Boiler and pressure vessel plates: Q245R, and Q345R, and Q370R, and Q420R,15CrMoR, 18MnMoNbr, 13MnNiMoR
Steel plate for low temperature pressure vessels: 16MnDR, 09MnNiDR,15MnNiDR, 15MnNiN6DR, and 08Ni3DR
Boiler tubes: 20, Q345B, and Q345D, and Q345E, 15CrMo, 12CrMo, 20G, 20MnG,12CrMnG, 12CrMoG, 15MoG
Size:
Corrugated furnace: DN300-DN2200
Tube sheet: DN150-DN2500
Script: DN350-DN1400
Elbow: DN15-DN1200
Coil diameter: DN15-DN150