800H N08810 - ASTM A213/A213M-2025

Grade	800H
USA UNS	N08810
Corresponding Standard	ASTM A213/A213M-2025 Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes
Classification	Austenitic Stainless Steel

800H Chemical Element Composition Content (%)

Component	Fe ^①	C	Si	Mn	P	S	Cr	Ni	Cu	Ti	Al
Minimum Value	39.5	0.05	-	-	-	-	19	30	-	0.15	0.15
Maximum Value	-	0.1	1	1.5	0.045	0.015	23	35	0.75	0.6	0.6

① Iron shall be determined arithmetically by difference of 100 minus the sum of the other specified elements.

800H Mechanical Properties

Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW
≥450	≥170	≥30	≤192

1 Approximate Comparison Table Corrosion-Resistant Alloy

2 Approximate Comparison Table Austenitic Stainless Steel

Japan	United States	International Organization for Standardization		European Standard
JIS	UNS	ISO	Numerical Grade	Numerical Grade
NCF800H	N08810	X7NiCrAlTi33-21	4959-088-10-U	1.4959

3 Approximate Comparison Table Corrosion-Resistant Alloy

800H Corresponding Standards(Same grade name, different standards)

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