Grade NH6-A
Corresponding Standard GB T 43151-2023
High-Strength Bolt Assemblies for Steel Structures of Weathering Steel
Classification Alloy Steel
NH6-A Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu
Minimum Value 0.23 0.1 0.2 - - 0.3 0.2 0.2
Maximum Value 0.28 0.3 0.5 0.12 0.02 0.8 0.65 0.55

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