G12MoCrV5-2 1.7720 - ISO 4991-2024

Grade	G12MoCrV5-2
ISO Numeric Designation	1.7720
Corresponding Standard	ISO 4991-2024 Steel castings for pressure purposes
Classification	Cast Steel

G12MoCrV5-2 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	V
Minimum Value	0.1	-	0.4	-	-	0.3	-	-	0.4	0.22
Maximum Value	0.15	0.45	0.7	0.03	0.02	0.5	0.4	0.3	0.6	0.3

G12MoCrV5-2 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	Quenching + Tempering (+QT) Quenching temperature 950~1000°C , Tempering temperature 680~720°C	510~660	≥295	A: ≥17	≥27

Approximate Comparison Table Cast Steel

China	International Organization for Standardization
GB	ISO	Numerical Grade
ZG13MoCrV ZG12MoCrV	G12MoCrV5-2	1.7720

G12MoCrV5-2 Corresponding Standards(Same grade name, different standards)

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