R31233 - ASTM B818-2025

Commercial Grade
USA UNS	R31233
Corresponding Standard	ASTM B818-2025 Cobalt-Chromium-Nickel-Molybdenum-Tungsten Alloy Plate, Sheet and Strip
Classification	Cobalt and Cobalt Alloys

Chemical Element Composition Content (%)

Component	Fe	C	Si	Mn	P	S	Cr	Ni	Mo	N	W	B	More
Minimum Value	1	0.02	0.05	0.1	-	-	23.5	7	4	0.03	1	-	Co:Remainder
Maximum Value	5	0.1	1	1.5	0.03	0.02	27.5	11	6	0.12	3	0.015	Co:Remainder

Mechanical Properties

Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
≥896	≥379	≥15

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