Chemical Composition Limits Weight % C Mn Si P S Cr Ni Co Mo W Fe Cobalt Alloy 6b 0.90-1.40 0.50-2.00 0.20-2.00 0.04 max 0.03 max 28.00-32.00 3.00 max bal 1.50 max 3.50-5.50 3.0 max

Typical Mechanical Properties (minimums) Material Form Tensile Strength ksi Yield Strength ksi Elongation in 4D Reduction of Area (*) Hardness (HRC) Alloy 6b Bar (AMS 5894) 130 70 5 7 33-43 Alloy 6b Sheet / Plate (AMS 5894) 130 70 5 7 33-43 Properties shown are for sheet and plate up to 1.0″ thick and for round bar up to 3.5″ diameter. *Reduction in area is not applicable to sheet or plate under 0.5″ thick

Chemical Composition Limits Weight % C Mn Si P S Cr Ni Co Mo W Fe Cobalt Alloy 6b 0.90-1.40 0.50-2.00 0.20-2.00 0.04 max 0.03 max 28.00-32.00 3.00 max bal 1.50 max 3.50-5.50 3.0 max

Typical Mechanical Properties (minimums) Material Form Tensile Strength ksi Yield Strength ksi Elongation in 4D Reduction of Area (*) Hardness (HRC) Alloy 6b Bar (AMS 5894) 130 70 5 7 33-43 Alloy 6b Sheet / Plate (AMS 5894) 130 70 5 7 33-43 Properties shown are for sheet and plate up to 1.0″ thick and for round bar up to 3.5″ diameter. *Reduction in area is not applicable to sheet or plate under 0.5″ thick

Cobalt Alloy 6b/UNS R30016

Q: Application

Specifications AMS 5894 – bar, sheet and plate UNS R30016

Grade: Cobalt Alloy 6b/UNS R30016

Sheet/Plate: 0.3mm-150mm

Strip/Foil: 0.02mm-16mm

Pipe: 6mm*0.5mm-1200mm*100mm

Bar: Ф6mm – Ф600mm

Wire: Ф0.01mm – Ф6mm

Others: Forged Rings, Flanges, Elbows, Tees, Reducers etc.

Standard: ASTM/ASME/AMS

Cobalt alloy 6b is a cobalt-based, chromium-tungsten alloy used extensively in wear environments where its low friction coefficient minimises the risk of seizing and galling, even in applications where lubrication is not practical. Coblat Alloy 6b is supplied in the solution treated condition (to AMS 5894) and its wear resistant properties inherent in this state limit the amount of heat treating and post machining. Typical applications for Alloy 6b include chain saw guide blades, furnace fan blades, high temperature bearings, valve stems, food processing equipment and steel mill equipment.

Chemical Composition Limits
Weight %	C	Mn	Si	P	S	Cr	Ni	Co	Mo	W	Fe
Cobalt Alloy 6b	0.90-1.40	0.50-2.00	0.20-2.00	0.04 max	0.03 max	28.00-32.00	3.00 max	bal	1.50 max	3.50-5.50	3.0 max

Typical Mechanical Properties (minimums)

Material	Form	Tensile Strength ksi	Yield Strength ksi	Elongation in 4D	Reduction of Area (*)	Hardness (HRC)
Alloy 6b	Bar (AMS 5894)	130	70	5	7	33-43
Alloy 6b	Sheet / Plate (AMS 5894)	130	70	5	7	33-43
Properties shown are for sheet and plate up to 1.0″ thick and for round bar up to 3.5″ diameter. *Reduction in area is not applicable to sheet or plate under 0.5″ thick

Specifications
AMS 5894 – bar, sheet and plate
UNS R30016

Introduction

Specification

Chemical Composition Limits
Weight %	C	Mn	Si	P	S	Cr	Ni	Co	Mo	W	Fe
Cobalt Alloy 6b	0.90-1.40	0.50-2.00	0.20-2.00	0.04 max	0.03 max	28.00-32.00	3.00 max	bal	1.50 max	3.50-5.50	3.0 max

Mechanical

Typical Mechanical Properties (minimums)

Material	Form	Tensile Strength ksi	Yield Strength ksi	Elongation in 4D	Reduction of Area (*)	Hardness (HRC)
Alloy 6b	Bar (AMS 5894)	130	70	5	7	33-43
Alloy 6b	Sheet / Plate (AMS 5894)	130	70	5	7	33-43
Properties shown are for sheet and plate up to 1.0″ thick and for round bar up to 3.5″ diameter. *Reduction in area is not applicable to sheet or plate under 0.5″ thick