S31266 - ASTM A479/A479M-2018

USA UNS	S31266
Corresponding Standard	ASTM A479/A479M-2018 Standard Specification for Stainless Steel Bars and Shapes for Use in Boilers and Other Pressure Vessels
Classification	Austenitic Stainless Steel

Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	N	W
Minimum Value	-	-	2	-	-	23	21	1	5.2	0.35	1.5
Maximum Value	0.03	1	4	0.035	0.02	25	24	2.5	6.2	0.6	2.5

◎ New designations established in accordance with Practice E527 and SAE J1086 published jointly by ASTM and SAE. See ASTM DS-56C, available from ASTM Headquarters.

Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
All specifications	Annealing	≥750	≥420	in 2 in.[50 mm] or 4D ≥ 35

◎ d-diameter, t-thickness

Approximate Comparison Table Austenitic Stainless Steel

United States	International Organization for Standardization		European Standard
UNS	ISO	Numerical Grade	Numerical Grade
S31266	X1CrNiMoCuNW24-22-6	4659-312-66-I	1.4659

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