Cobalt Alloy 6b wire rod, Cobalt Alloy 6b round bar,  Stellite 6b plate,  Stellite 6b sheet,  Stellite 6b seamless pipe

Stellite 6b/Cobalt Alloy 6b/UNS R30016 Cobalt alloy 6b / Stellite 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. Stellite 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.

Products Details

Cobalt, Co 65
Chromium, Cr 28-32
Tungsten, W 3.50-5.50
Iron, Fe 3
Nickel, Ni 3
Manganese, Mn 2
Molybdenum, Mo 1.50
Carbon, C 0.90-1.40
▪ Chain saw guide bars ▪ Furnace fan blades ▪ Steam turbine erosion shields ▪ High temperature bearings ▪ Food processing equipment ▪ Centrifuge liners ▪ Valve stems ▪ Needle valves ▪ Nozzles ▪ Hot extrusion dies ▪ Extruder screws ▪ Forming dies ▪ Pump plungers ▪ Valve parts▪ AMS 5894 - bar, sheet and plate ▪ UNS R30016
Properties Metric Imperial
Tensile strength 1000 MPa 145000 psi
Yield strength 621 MPa 90100 psi
Elongation at break 12% 12%
Hardness, Brinell (estimated from Rockwell C) 346 346
Hardness, Knoop (estimated from Rockwell C) 413 413
Hardness, Rockwell A (estimated from Rockwell C) 69.5 69.5
Hardness, Rockwell C 36-40 36-40
Hardness, Vickers (estimated from Rockwell C) 362 362
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-

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