Standard Number: YB/T 4937-2021(YB/T4937-2021)
Chinese:汽车安全带卷簧用热轧钢带
English:Hot rolled steel strip for automotive seat belt coil springs
Effective Date:2022-04-01
Standard Applicability:This document specifies the classification and code of hot rolled steel strip for automobile safety belt coil spring, the grade expression, order content, size, shape, weight, technical requirements, test methods, inspection rules and packaging, marking, quality certification. This document applies to the manufacture of automobile safety belt coil spring cold rolled precision steel strip with a thickness of not more than 6 mm hot rolled steel strip.
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