Grade ZK22SiMnCrNi2Mo
Corresponding Standard GB /T 1301-2008
Hollow Drill Steels for Rock Drilling
Classification Alloy Steel
ZK22SiMnCrNi2Mo Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo
Minimum Value 0.18 1.3 1.2 - - 0.15 1.65 - 0.2
Maximum Value 0.26 1.7 1.5 0.025 0.025 0.4 2 0.25 0.45

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