SF2205 - GB /T 14383-2021

Performance Level	SF2205
Corresponding Standard	GB /T 14383-2021 Forged fitting, socket-welding and threaded
Classification	Duplex Stainless Steel

SF2205 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo	N
Minimum Value	-	-	-	-	-	22	4.5	3	0.14
Maximum Value	0.03	1	2	0.03	0.02	23	6.5	3.5	0.2

SF2205 Mechanical Properties

Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Reduction of Area ψ %	Hardness HBW
≥655	≥450	≥25	≥45	≤290

① Yield Point: For pipe fittings of the stainless steel category, the specified non-proportional elongation strength Rp0.2 is used. For pipe fittings of other material categories, when the lower yield strength ReL is not clearly defined, the specified non-proportional elongation strength Rp0.2 is used.

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