G17Mn5 1.1131 - ISO 4991-2024

Grade	G17Mn5
ISO Numeric Designation	1.1131
Corresponding Standard	ISO 4991-2024 Steel castings for pressure purposes
Classification	Cast Steel

G17Mn5 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	V	More
Minimum Value	0.15	-	1	-	-	-	-	-	-	-	Cr+Mo+Ni+V+Cu ≤ 1.00
Maximum Value	0.2	0.6	1.6	0.02	0.025	0.3	0.4	0.3	0.12	0.03	Cr+Mo+Ni+V+Cu ≤ 1.00

G17Mn5 Mechanical Properties

thickness t mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
t ≤ 50	Quenching + Tempering (+QT) Quenching temperature 890~980°C , Tempering temperature 600~700°C	450~600	≥240	A: ≥24	-40°C: ≥27

Approximate Comparison Table Cast Steel

China	United States	International Organization for Standardization
GB	UNS	ISO	Numerical Grade
ZG18 ZG17Mn5	J02505	G17Mn5	1.1131

G17Mn5 Corresponding Standards(Same grade name, different standards)

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