GX2CrNiMoCuN26-5-3-3 1.4451 - ISO 4991-2024

Grade	GX2CrNiMoCuN26-5-3-3
ISO Numeric Designation	1.4451
Corresponding Standard	ISO 4991-2024 Steel castings for pressure purposes
Classification	Cast Steel

GX2CrNiMoCuN26-5-3-3 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	N
Minimum Value	-	-	-	-	-	25	5	2.75	2.5	0.12
Maximum Value	0.03	1	1.5	0.035	0.025	27	7	3.5	3.5	0.22

GX2CrNiMoCuN26-5-3-3 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 ≤ 150	Solution Treatment (+AT) 1120~1150°C	650~850	≥480	A: ≥22	-70℃ ≥35

Approximate Comparison Table Cast Steel

China	United States	International Organization for Standardization
GB	UNS	ISO	Numerical Grade
ZG03Cr26Ni6Mo3Cu3N	J93372	GX2CrNiMoCuN26-5-3-3	1.4451

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!