GP280GH 1.0625 - ISO 4991-2024

Grade	GP280GH
ISO Numeric Designation	1.0625
Corresponding Standard	ISO 4991-2024 Steel castings for pressure purposes
Classification	Cast Steel

GP280GH Chemical Element Composition Content (%)

Component	C ^①	Si	Mn ^①	P	S	Cr	Ni	Cu	Mo	V	More
Minimum Value	0.18	-	0.8	-	-	-	-	-	-	-	Cr+Mo+Ni+V+Cu ≤ 1.00
Maximum Value	0.25	0.6	1.2	0.03	0.02	0.3	0.4	0.3	0.12	0.03	Cr+Mo+Ni+V+Cu ≤ 1.00

① For each reduction of 0,01 % carbon below the maximum specified, an increase of 0,04 % manganese above the maximum specified will be permitted to a maximum of 1,40 %.

GP280GH 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 ≤ 100	Normalizing (+N) 900~980°C	480~640	≥280	A: ≥22	≥27
t ≤ 100	Quenching + Tempering (+QT) Quenching temperature 900~980°C , Tempering temperature 600~700°C	480~640	≥280	A: ≥22	≥40

Approximate Comparison Table Cast Steel

China	United States	International Organization for Standardization
GB	UNS	ISO	Numerical Grade
ZGR280-480	J02505	GP280GH	1.0625

GP280GH Corresponding Standards(Same grade name, different standards)

1	EN 10213-2007(+A1:2016)
	GP280GH 1.0625
2	ISO 4991-2024
	GP280GH 1.0625

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