Grade 25Cr2MoV
Corresponding Standard YB /T 158-1999
Alloy Structure Steel Bars for Steam Turbine Bolts
Classification Alloy Steel
25Cr2MoV Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo V
Minimum Value 0.22 0.17 0.4 - - 1.5 - - 0.25 0.15
Maximum Value 0.29 0.37 0.7 0.025 0.025 1.8 0.3 0.25 0.35 0.35
Approximate Comparison Table Structural Alloy Steel
China Germany European Standard United Kingdom
YB DIN EN/DIN W-Nr. EN Numerical Grade BS EN/BS
25Cr2MoV 21CrMoV5-7 1.7709 21CrMoV5-7 1.7709 21CrMoV5-7
25Cr2MoV Corresponding Standards(Same grade name, different standards)

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