S31727 - ASTM A479/A479M-2018

USA UNS	S31727
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
Minimum Value	-	-	-	-	-	17.5	14.5	2.8	3.8	0.15
Maximum Value	0.03	1	1	0.03	0.03	19	16.5	4	4.5	0.21

◎ 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 %	Hardness HBW
All specifications	Annealing	≥550	≥245	in 2 in.[50 mm] or 4D ≥ 35	≤217

◎ d-diameter, t-thickness

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