Detection object

Steel grid

Detection item

Detection of the thickness of the bottom of the cover plate and the cone head

Detection standard

GB/T 16939-2016 Detection of high-strength bolts for bolt ball nodes of steel grid

Related standards

《ASTM F606/F606M-16》Standard test method for determining the mechanical properties of external and internal threaded fasteners, washers, direct tension indicators and rivets ASTM F606/F606M-16 3.5

《ASTM G28-02(2015)》Test method for detecting intergranular corrosion sensitivity of forged high nickel-chromium alloy ASTM G28-02(2015)

《ASTM F606/F606M-16》Standard test method for determining the mechanical properties of external and internal threaded fasteners, washers, direct tension indicators and rivets ASTM F606/F606M-16 4.2

《ISO 3506-4:2009》Mechanical properties of corrosion-resistant stainless steel fasteners Part 4: Self-tapping screws ISO 3506-4:2009 6.3

《ASTM E381-17》Standard method for macroetching test of bars, billets, blooms and forgings ASTM E381-17

《GB/T 94.1-2008》Technical conditions for elastic washers Spring washers GB/T 94.1-2008 4.1

《GB/T 94.1-2008》Technical conditions for elastic washers Spring washers GB/T 94.1-2008 4.2

《JB/T 9151.4-1999》Test methods for fasteners Dimensions and geometrical accuracy Washers JB/T 9151.4-1999

《ASTM E381-17》Standard test method for macrocorrosion of bars, billets, blooms and forgings ASTM E381-17

《GB/T 3098.15-2014》Mechanical properties of fasteners Stainless steel nuts GB/T 3098.15-2014

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