This specification covers bolts and screws made from a corrosion and heat resistant, martensitic iron base alloy of the type identified under the Unified Numbering System as UNS S17400. The following specification designations and their properties are covered: AS7474 140 ksi minimum ultimate tensile strength at room temperature 100 ksi stress corrosion test 72 ksi to 7.2 ksi tension-tension fatigue; AS7474-1 140 ksi minimum ultimate tensile strength at room temperature 100 ksi stress corrosion test 88 ksi minimum ultimate shear strength at room temperature. Primarily for aerospace propulsion system applications where corrosion resistance and high strength in tension is required in temperatures not to exceed 600 °F.
SAE AS 7474C-2011由美国机动车工程师协会 US-SAE 发布于 2011-10-31。
SAE AS 7474C-2011 在中国标准分类中归属于: V20 紧固件,在国际标准分类中归属于: 49.030.20 螺栓、螺钉、螺柱。
* 在 SAE AS 7474C-2011 发布之后有更新,请注意新发布标准的变化。
SAE AS 7474C-2011 由 SAE AS 7474B-1995 变更而来。
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