BS3059锅炉及过热器用钢管（英国标准360 4

标准

BS3059锅炉及过热器用钢管

STEELBOILER AND SUPERHEATER TUBES

主要生产牌号

Mainsteel tube grade

360440 243 620-460 622-490

化学成分

ChemicalCompositionGrade gradeChemical composition limits, %CSiMnP maxS maxNiCrMo360≤0.170.10-0.350.40-0.800.0350.035///4400.12-0.180.10-0.350.90-1.200.0350.035///2430.10-0.200.10-0.350.40-0.800.0350.035≤0.20≤0.300.25-0.30620-4600.10-0.150.10-0.350.40-0.700.0300.030≤0.200.70-1.100.45-0.65622-4900.08-0.15≤0.500.30-0.700.0250.020≤0.202.00-2.500.90-1.20机械性能

MechanicalpropertiesGrade gradeMechanical properties Steel typeSteel numberYield strength MPa

Min.Tensile strength MPaElongation %

Min.Carbon360235360-51024 Carbon manganese440245440-58021 0.3%Mo243275480-63022 1%Cr0.5%Mo620-460180460-61022 2.25%Cr1%Mo622-490275490-64020  

企业名片