GB/T 6725-2017: Translated English of Chinese Standard. (GBT 6725-2017, GB/T6725-2017, GBT6725-2017): General requirements of cold forming steel sections
https://www.chinesestandard.net, 17 nov. 2017 - 11 pages
This Standard specifies the order content, classification and code, size, appearance, weight and allowable deviation, technical requirements, test methods, acceptance rules, packaging, marks and quality certificate. This Standard is applicable to cold forming steel produced on continuous roll cold bending unit by cold-processed textured cold-rolled, hot-rolled or coated (plated) steel sheets and strips.
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Size appearance weight and allowable deviation
Agreed allowable deviation batch lot batch of cold Carbon structural steels chemical composition Classification and code Cold forming deformed cold forming length Cold forming open cold forming steel comply with Table contract curling channel steel elongation after break forming open section forming steel according forming steel sections half of thickness hollow steel hot-rolled Impact test methods Inspection item Longitudinal sample GB/T low alloy structural marks and quality Mechanical properties method on welded Non-destructive test open section steel packing box places when cold product cross-section shape products of outer purchaser and indicated quality certificate raw material designation Re-inspection and determination rectangular requirements of GB/T sampling method sampling quantity sheet and strip special requirements Standard steel shall comply steel sheet strips GB/T structural steels GB/T structure GB/T supplier surface quality Tensile strength Tensile test tube for short Value rounding-off weight and allowable welded joints GB/T YB/T yield strength level Z-shaped steel