N07500 Grade 684 - ASTM B 637-2018 - H2ABC

中文版

USA UNS	N07500
Old Grade
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	Nickel and Nickel Alloys
Properties	Corrosion Resistance

Chemical Element Composition Content (%)

Component	Fe	C	Si	Mn	P	S	Cr	Cu	Mo	Ti	B	Co	Al	More
Minimum Value	-	-	-	-	-	-	15	-	3	2.5	0.003	13	2.5	Ni:余量
Maximum Value	4	0.15	0.75	0.75	0.015	0.015	20	0.15	5	3.25	0.01	20	3.25	Ni:余量

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
annealing + solution + stabilization + precipitation hardening (bars and rods)	psi ≥175000	psi ≥105000	≥15	≥15	≥310
solution + stabilization + precipitation hardening (forgings)	psi ≥170000	psi ≥100000	≥20	≥18	≥310

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