標(biāo)準(zhǔn)號：ASTM A489-2000
中文標(biāo)準(zhǔn)名稱：碳素鋼吊耳標(biāo)準(zhǔn)規(guī)范
英文標(biāo)準(zhǔn)名稱：Standard Specification for Carbon Steel Lifting Eyes
標(biāo)準(zhǔn)類型：J80
發(fā)布日期：1999/12/31 12:00:00
實(shí)施日期：1999/12/31 12:00:00
中國標(biāo)準(zhǔn)分類號：J80
國際標(biāo)準(zhǔn)分類號：21.060.10 (Bolts, screws, studs)
適用范圍： 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.