Grade 30Cr2Ni4MoV
Corresponding Standard JB /T 7022-2014
The Rotor Forgings for Industrial Steam Turbines- Technical Specification
Classification Alloy Steel
30Cr2Ni4MoV Chemical Element Composition Content (%)
Component C Si Mn P S Cr Ni Cu Mo V Al
Minimum Value - 0.15 0.2 - - 1.5 3.25 - 0.3 0.07 -
Maximum Value 0.35 0.3 0.4 0.012 0.012 2 3.75 0.2 0.6 0.15 0.015
30Cr2Ni4MoV Mechanical Properties
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Reduction of Area
ψ
%
Impact Energy Absorption
KV2
J
≤1200; Tangential, Longitudinal 860~970 ≥760 ≥16 ≥45 ≥41
≤1200; Core longitudinal ≥825 ≥725 ≥16 ≥45 ≥34
30Cr2Ni4MoV Corresponding Standards(Same grade name, different standards)

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