GB/T 31943-2015 in English

《GB/T 31943-2015精密焊接钢管用冷连轧钢带》由TC183（全国钢标准化技术委员会）归口，主管部门为中国钢铁工业协会。
本标准规定了精密焊接钢管用冷连轧钢带的牌号及用途、订货内容、尺寸、外形、重量及允许偏差、技术要求、试验方法、检验规则、包装、标志及质量证明书。
本标准适用于厚度为0.25mm~1.30mm 的冷连轧钢带,主要用于制冷、汽车、电热电器等工业中
冷凝器、蒸发器、燃料管、润滑油管、电热管、冷却器管等单层和双层精密焊接钢管。

Scope

This standard specifies the designation and use, order content, size, shape, weight and allowable deviation, technical requirements, test methods, inspection rules, packaging, marks and quality certificates of cold-rolled steel strips for precision welded steel pipes. This standard applies to cold-rolled steel strips with a thickness of 0.25 mm to 1.30 mm, which are mainly used in single-layer condensers, evaporators, fuel pipes, lubricating oil pipes, electric heating pipes, and cooler pipes in industries such as refrigeration, automobiles, and electric heating appliances. And double-layer precision welded steel pipe.