Grade GX15CrMo5
ISO Numeric Designation 1.7365
Corresponding Standard ISO 4991-2024
Steel castings for pressure purposes
Classification Cast Steel
GX15CrMo5 Chemical Element Composition Content (%)
Component C Si Mn P S Cr Cu Mo V
Minimum Value 0.12 - 0.5 - - 4 - 0.45 -
Maximum Value 0.19 0.8 0.8 0.025 0.025 6 0.3 0.65 0.05
GX15CrMo5 Mechanical Properties
thickness
t
mm
Heat Treatment or Condition
Tensile Strength
σb
Mpa
Specified Plastic Yield Strength
Rp0.2
Mpa
Elongation or Extension Rate
δ
%
Impact Energy Absorption
KV2
J
t ≤ 150 Quenching + Tempering (+QT)
Quenching temperature 930~990°C , Tempering temperature 680~730°C
630~760 ≥420 A: ≥16 ≥27
Approximate Comparison Table Cast Steel
China United States International Organization for Standardization
GB UNS ISO Numerical Grade
ZG16Cr5Mo J42045 GX15CrMo5 1.7365
GX15CrMo5 Corresponding Standards(Same grade name, different standards)

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