N07022 - ASTM B 637-2018 - H2ABC

中文版

USA UNS	N07022
Corresponding Standard	ASTM B 637-2018 Standard Specification for Precipitation-Hardening and Cold Worked Nickel Alloy Bars, Forgings, and Forging Stock for Moderate or High Temperature Service
Classification	Alloy Steel
Properties	Corrosion Resistance

Chemical Element Composition Content (%)

Component	Fe	C	Si	Mn	P	S	Cr	Cu	Mo	W	Nb	B	Co	Al	More
Minimum Value	-	-	-	-	-	-	20	-	15.5	-	-	-	-	-	Ni:余量；Ta≤0.2
Maximum Value	1.8	0.01	0.08	0.5	0.025	0.015	21.4	0.5	17.4	0.8	0.2	0.006	1	0.5	Ni:余量；Ta≤0.2

Mechanical Properties

heat treatment	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW
Class 1A, solution + cold working	psi ≥160000	psi ≥150000	≥17	≥50	≤382
Class 1B, solution + cold working	psi ≥185000	psi ≥180000	≥13	≥30	≤425
Class 2, solution + cold working + precipitation hardening	psi ≥178000	psi ≥160000	≥15	≥24	≤479
Class 3, solution + precipitation hardening	psi ≥145000	psi ≥80000	≥15	≥14	≥228

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