GX4CrNi13-4 1.4317 - ISO 4991-2024

Grade	GX4CrNi13-4
ISO Numeric Designation	1.4317
Corresponding Standard	ISO 4991-2024 Steel castings for pressure purposes
Classification	Cast Steel

GX4CrNi13-4 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	V
Minimum Value	-	-	-	-	-	12	3.5	-	-	-
Maximum Value	0.06	1	1	0.035	0.025	13.5	5	0.3	0.7	0.08

GX4CrNi13-4 Mechanical Properties

thickness t mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Impact Energy Absorption KV2 J
t ≤ 300	Quenching + Tempering (+QT) Quenching temperature 1000~1050°C , Tempering temperature 590~620°C	760~960	≥550	A: ≥15	≥50

Approximate Comparison Table Cast Steel

China	United States	International Organization for Standardization
GB	UNS	ISO	Numerical Grade
ZG06Cr13Ni4Mo	J91550	GX4CrNi13-4	1.4317

GX4CrNi13-4 Corresponding Standards(Same grade name, different standards)

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