GB/T 39754-2021 Translated English of Chinese Standard. (GBT 39754-2021, GB/T39754-2021, GBT39754-2021): Hot dip coating steel sheet and strip for corrugated pipe
https://www.chinesestandard.net, 04.04.2021 - 15 Seiten
This Standard specifies terms and definitions, classification and codes, dimensions, appearance, weight, technical requirements, test methods, inspection rules, packaging, marks and quality certificates for hot dip coating steel sheet and strip for corrugated pipe. This Standard is applicable to the hot dip coating steel sheet and strip, with a thickness of 0.7mm~10mm, for corrugated steel structure that is used in the production of pipe networks, culverts, underground water storage tanks, pedestrian walkways, underpasses for automobiles, public pipe corridors and special-shaped structures installed on site.
Terms and definitions
Classification and codes
Dimensions appearance and weight
Packaging marks and quality certificate
absorption according allowable deviation applies atomic base steel batch black rust carbon chemical composition Chromic acid passivation chromium-free passivation coating is expressed coating steel sheet Coating surface coating type code corrugated pipes corrugated steel pipe defects Designation Determination Dimensions direction distance edge Example friction marks furnace handling hot-dip hot-rolled inspection Iron less letter meaning Mechanical properties meet the requirements method GB/T nominal coating weight NOTE oiling packaging passivation C3 passivation film passivation treatment product during transportation purchaser recommended usage references requirements of Table roll rules salt spray test sample position shape sheet and strip side specified Standard Steel and Alloy steel grade code steel products steel strip strip for corrugated strip or steel strip shall meet structure supplier surface treatment type Technical tensile properties terms and definitions test methods thickness transportation and storage transverse trivalent chromium passivation usage code Usually various