N07718 Grade 718 Inconel 718 - ASTM B 637-2018

USA UNS	N07718
Other Names
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	Alloy Steel
Properties	Corrosion Resistance

Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	Ti	Nb	B	Co	Al	More
Minimum Value	-	-	-	-	-	17	50	-	2.8	0.65	0.5	-	-	0.2	Fe:Remainder；Nb+Ta:4.75~5.50
Maximum Value	0.08	0.35	0.35	0.015	0.015	21	55	0.3	3.3	1.15	2.5	0.006	1	0.8	Fe:Remainder；Nb+Ta:4.75~5.50

Mechanical Properties

heat treatment	Test Temperature	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW
solution + precipitation hardening	Room Temperature	≥1275	≥1034	≥6	≥8	HRC ≥36
solution + precipitation hardening		690MPa at least 23 hours②		② ≥5

1 Approximate Comparison Table Deformed High-Temperature Alloy

2 Approximate Comparison Table Corrosion-Resistant Alloy

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