Manganese Bronze, UNS C86300, Copper Casting Alloy

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Manganese Bronze, UNS C86300, Copper Casting Alloy
Categories:	Metal; Nonferrous Metal; Copper Alloy; Copper Casting Alloy
Material Notes:	Casting methods recommended for this alloy: Centrifugal, Investment, Plaster, and Sand. Applications: Extra heavy duty, high strength alloy. Large valve stems, gears, cams, slow-speed heavy-load bearings, screwdown nuts hydraulic cylinder parts. Classified under: Manganese and leaded manganese bronze alloys. ASTM B22; ASTM B584; formerly ASTM B22-E; ASTM B147-8C As cast values below are for sand casting. Alloy does not respond to heat treating. Casting shrinkage allowance is 2.3%
Key Words:	High Strength Manganese Bronze, ASTM B22; ASTM B584; ASTM B22-E; ASTM B147-8C
Vendors:	Dura-Bar Metal Services is a major distributor of bronze alloys. We stock a large inventory of C86300 in tubes and rounds. Our customers rely on us for high quality materials that help increase their profitability. Call us at 1-800-526-0548 or visit dura-barms.com for more information. Click here to view all available suppliers for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
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Physical Properties	Original Value	Comments

Density	7.70 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Brinell	225	3000 kg
Tensile Strength, Ultimate	820 MPa
Tensile Strength, Yield	460 MPa
Elongation at Break	18 %	In 50 mm
Modulus of Elasticity	105 GPa
Fatigue Strength	170 MPa @# of Cycles 1.00e+8	rotating beam
Machinability	8 %	UNS C36000 (free-cutting brass) = 100%

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.0000192 ohm-cm @Temperature 20.0 °C	9% IACS
Magnetic Permeability	1.09

Thermal Properties	Original Value	Comments
CTE, linear	12.0 µin/in-°F @Temperature 20.0 - 300 °C
Specific Heat Capacity	0.0900 BTU/lb-°F
Thermal Conductivity	20.5 BTU-in/hr-ft²-°F
Melting Point	885 - 920 °C
Solidus	885 °C
Liquidus	923 °C

Component Elements Properties	Original Value	Comments
Aluminum, Al	3.0 - 7.5 %
Copper, Cu	60 - 68 %
Iron, Fe	2.0 - 4.0 %
Lead, Pb	<= 0.20 %
Manganese, Mn	2.5 - 5.0 %
Tin, Sn	<= 0.20 %
Zinc, Zn	25 %

References for this datasheet.

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MC86300b1 / 11914

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