Grade ZG30Cr5Mo
Corresponding Standard GB /T 26651-2011
Abrasion-Resistant Steel Castings
Classification Cast Steel
ZG30Cr5Mo Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Mo
Minimum Value 0.25 0.4 0.5 - - 4 - 0.2
Maximum Value 0.35 1 1.2 0.04 0.04 6 0.5 0.8
• Allows the addition of trace amounts of elements such as V, Ti, Nb, B, and RE.
ZG30Cr5Mo Mechanical Properties
Hardness
HBW
Impact Energy Absorption
KV2
J
HRC: ≥42 ≥12
• V and N in KV2 and KN2 represent V-notch and unnotched samples respectively.
• The hardness at 40% of the section depth of the casting should not be less than 92% of the surface hardness value

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