GB/T 41324-2022 Translated English of Chinese Standard. (GBT41324-2022): Fire-resistant weathering steels for structure
www.ChineseStandard.net, 4 giu 2022 - 24 pagine
This document specifies the size, shape, weight, technical requirements, test methods, inspection rules, packaging, marking and quality certificates of fire-resistant weathering steels for structure. This document applies to hot-rolled steel plates and strips and hot-rolled section steels with fire resistance and atmospheric corrosion resistance for the manufacture of general structures and building structures.
Appendix A Normative Evaluation method for atmospheric corrosion resistance
Appendix B Normative Relative corrosion rate determination method
according allowed analysis of iron Appendix atmospheric corrosion resistance batch buyer calculated chemical analysis chemical composition chemical composition melting China clean comply content GB/T contract crack susceptibility index defects delivery Designation Quality grade determination direction document evaluation exceed Fire-resistant weathering steels furnace greater Group impact test includes indicated Iron and Steel iron oxide scale less lower meet the requirements method GB/T Methods for chemical Negotiated Negotiated Negotiated Nominal normalizing Piece plates and strips portion preparation provisions of GB/T quantity range reference relative corrosion rate representing requirements in Table respectively room temperature rules sample section steel shape smelted solution Special specified specified value Standardization steel and alloy steel plate steel products steel shall comply steel shall meet steel strip steels for structure supplier surface quality temperature tensile test test method thickness through-thickness characteristics Ultrasonic testing weight weight loss rate welding crack susceptibility YB/T Yield ratio