♦Standard

GB3087、 GB5310

♦Application

Used to manufacture various low-pressure, medium-pressure and high-pressure boilers

♦Grade

10、20、20G、20MnG、25MnG、15MoG、20MoG、12MoG、12Cr1MoVG、15CrMoG、12Cr2MoG、12Cr2MoWVTiB

♦Size

22mm-356mm * 3mm-75mm

Mechanical properties

a、For steel pipes made of 12Cr2MoG steel, when the wall thickness is greater than 16-40mm, the yield strength is allowed to decrease by 10MPa, and when the wall thickness is greater than 40mm, the yield strength is allowed to decrease by 20MPa

b、 When the wall thickness is ≤16mm, the yield strength is not less than 205MPa; when the wall thickness is greater than 16mm, the yield strength is not less than 195MPa

c、When the wall thickness is ≤16mm, the yield strength is not less than 245MPa; when the wall thickness is greater than 16mm, the yield strength is not less than 235MPa