标准摘要
[中文适用范围]： 本文件描述了一种确定厚度范围为 1.2 mm 至 6.0 mm（含）且宽度至少为 90 mm 的金属板材和带材的孔扩张率的方法。注：该测试通常适用于金属板材，用于评估产品是否适合形成法兰。 [外文原描述]： ISO 16630 describes a method of determining the hole expansion ratio in metallic sheets and strips with a thickness range of 1,2 mm to 6,0 mm inclusive and a width of at least 90 mm. NOTE This test is normally applicable to sheet metal and is used to assess the suitability of the product for forming flanges.
英文名称Metallic materials — Sheet and strip — Hole expanding test