SANS 1700-6-6-2003 紧固件.第6部分:测试和验收第6节:紧固件.检查氢脆用预载荷试验,平行支承面法
Fasteners Part 6: Testing and acceptance inspection Section 6: Fasteners - Preloading test for the detection of hydrogen embrittlement - Parallel bearing surface method
Specifies a preloading test which is able to detect the occurence of hydrogen embrittlement of fasteners at room temperature. The test is applicable to metric bolts, screws and studs; thread rolling screws; self-tapping screws; self-drilling screws; nuts