ASTM A489-2000 碳素钢吊耳标准规范

标准号：ASTM A489-2000
中文标准名称：碳素钢吊耳标准规范
英文标准名称：Standard Specification for Carbon Steel Lifting Eyes
标准类型：J80
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：J80
国际标准分类号：21.060.10 (Bolts, screws, studs)
适用范围： Note-Lifting eyes carrying this specification number even though they are liquid quenched and tempered may be processed from carbon steel which, in the composition range permitted by this specification, could have a fracture appearance transition temperature (50% shear) higher than operating temperatures. Therefore, in order to minimize the possibility of a brittle cleavage failure, these lifting eyes should never be loaded above the proof load, and should not be used when surface discontinuities exist on the lifting eyes.