A312 800 N08800 - ASTM A312/A312M-2025

Grade	A312 800
USA UNS	N08800
Corresponding Standard	ASTM A312/A312M-2025 Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes
Classification	Austenitic Stainless Steel

A312 800 Chemical Element Composition Content (%)

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

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

A312 800 Mechanical Properties

Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
cold-worked annealed	≥515	≥205
hot finished annealed	≥450	≥170
			L：≥30

* L—Longitudinal; T—Transverse.

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	EN	Numerical Grade
NCF800	N08800	X8NiCrAlTi32-21	4876-088-00-I	X8NiCrAlTi32-21	1.4959 1.4876

3 Approximate Comparison Table Austenitic Heat-Resistant Steel

United States		International Organization for Standardization	European Standard
ASTM	UNS	ISO	EN	Numerical Grade
800	N08800	X8NiCrAlTi32-21	X10NiCrAlTi32-21	1.4876

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