R30816

Classification

Country	Section	Category
USA	Reactive and Refractory Metals and Alloys	Cobalt

Chemical composition

Standard	Fe, %	Si, %	Mn, %	Co, %	Cr, %	Ni, %	P, %	C, %	S, %	Nb, %	Mo, %	W, %
UNS	< 5	< 1	1–2	< 40	19–21	19–21	< 0.04	0.32–0.42	< 0.03	3.5–4.5	3.5–4.5	3.5–4.5

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Standards

Standard	Description
UNS

Description of chemical elements

Element	Units of measurement	Description
Fe	%	Iron
Si	%	Silicon
Mn	%	Manganese
Co	%	Cobalt
Cr	%	Chrome
Ni	%	Nickel
P	%	Phosphorus
C	%	Carbon
S	%	Sulfur
Nb	%	Niobium
Mo	%	Molybdenum
W	%	Tungsten