S39277 - ASTM A789/A789M-2024

USA UNS	S39277
Corresponding Standard	ASTM A789/A789M-2024 Seamless and Welded Ferritic/Austenitic Stainless Steel Tubing for General Service
Classification	Duplex Stainless Steel
Properties	Corrosion Resistance

Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	N	W
Minimum Value	-	-	-	-	-	24	6.5	1.2	3	0.23	0.8
Maximum Value	0.025	0.8	0.8	0.025	0.002	26	8	2	4	0.33	1.21

Mechanical Properties

condition	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW
Tube	Solution treatment at 1080~1180°C, quick quenching using water or other methods	≥825	≥620	≥25	HBW: ≤290 HRC: ≤30 HV: ≤290*

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