ASME SECTION II B SF-468M-2008 标准规范下载.pdf

2008a SECTION II, PART B SF-468M SPECIFICATION FOR NONFERROUS BOLTS, HEX CAP A08 SCREWS, AND STUDS FOR GENERAL USE [METRIC] SF-468M (Identical with ASTM Specification F 468M-06 except that certification has been made mandatory.) 1. Scope E 18 Test Methods for Rockwell Hardness and Rockwell 1.1 This specification covers the requirements for com- Superficial Hardness of Metallic Materials mercial wrought nonferrous bolts, hex cap screws, and E 29 Practice for Using Significant Digits in Test Data to studs in nominal thread diameters M6 to M36 inclusive Determine Conformance with Specifications manufactured from a number of alloys in common use and E 34 Test Methods for Chemical Analysis of Aluminum intended for general service applications. and Aluminum-Base Alloys E 38 Methods for Chemical Analysis of Nickel-Chromium 1.2 Unless otherwise specified, nuts used on these bolts, and Nickel-Chromium-Iron Alloys cap screws, and studs shall conform to the requirements of Specification F 467M. Nuts shall be of the same alloy E 53 Test Method for Determination of Copper in Unal- group as the fastener on which they are used and shall loyed Copper by Gravimetry have a specified minimum proof stress equal to or greater E 54 Test Methods for Chemical Analysis of Special than the specified minimum tensile strength stress of the Brasses and Bronz