GX4CrNiMo16-5-1 1.4405 - ISO 4991-2024

Grade	GX4CrNiMo16-5-1
ISO Numeric Designation	1.4405
Corresponding Standard	ISO 4991-2024 Steel castings for pressure purposes
Classification	Cast Steel

GX4CrNiMo16-5-1 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	V
Minimum Value	-	-	-	-	-	15	4	-	0.7	-
Maximum Value	0.06	0.8	1	0.035	0.025	17	6	0.3	1.5	0.08

GX4CrNiMo16-5-1 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 1020~1070°C , Tempering temperature 580~630°C	760~960	≥540	A: ≥15	≥60

1 Approximate Comparison Table Cast Steel

China	United States	International Organization for Standardization
GB	UNS	ISO	Numerical Grade
ZG06Cr16Ni5Mo	J91804	GX4CrNiMo16-5-1	1.4405

2 Approximate Comparison Table Corrosion-Resistant Cast Steels

Japan	International Organization for Standardization
JIS	ISO
SCS 31	GX4CrNiMo16-5-1

GX4CrNiMo16-5-1 Corresponding Standards(Same grade name, different standards)

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