R30556 - ASTM SB-435

Commercial Grade
USA UNS	R30556
Corresponding Standard	ASME SB-435-2023 UNS N06002, UNS N06230, UNS N12160, and UNS R30556 Plate, Sheet, and Strip
Classification	Special Alloy Steel
Density	8.23 g/cm³

Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo	N	W	Zr	B	Co	Al	Ta	Cb	La	More
Minimum Value	0.05	0.2	0.5	-	-	21	19	2.5	0.1	2	0.001	-	16	0.1	0.3	-	0.005	Fe:Remainder
Maximum Value	0.15	0.8	2	0.04	0.015	23	22.5	4	0.3	3.5	0.1	0.02	21	0.5	1.25	0.3	0.1	Fe:Remainder

Mechanical Properties

Heat Treatment or Condition	Tensile Strength σ_b Mpa	Specified Plastic Yield Strength Rp_0.2 Mpa	Elongation or Extension Rate δ %
Solution annealed at 1150°C minimum	≥690	≥310	≥40

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