C86700

Product Description: Manganese Bronze
Solids: 1/2" to 13" O.D.
Tubes: 1 1/8" to 16" O.D.
Rectangles: Up to 20"
Standard Lengths: 144"
Shape/Form: semi-finished, mill stock or near-net shapes, anode, bar stock, billet/bloom, squares, hex, plate, profile or structural shape, flats/rectangular bar

Typical Uses

Builders Hardware: brackets
Fasteners: screw down nuts
Industrial: bearings, cams, fittings, lever arms, machinery parts, moderate duty gears, propellers, valve stems
Marine: marine hardware, propellers

Chemical Composition

Cu%1	Pb%	Sn%	Zn%	Fe%	Ni%2	Al%	Mn%
Chemical Composition provided by CDA 1In determining Cu min., Cu may be calculated as Cu + Ni. 2Ni value includes Co. Note: Cu + Sum of Named Elements, 99.0% min. Single values represent maximums.
55.00- 60.00	0.50- 1.50	1.50	30.00- 38.00	1.00- 3.00	1.00	1.00- 3.00	0.10- 3.50

Machinability

Copper Alloy UNS No.	Machinability Rating	Density (lb/in3 at 68 °F)
C86700	55	0.301

Mechanical Properties

Tensile Strength, min		Yield Strength, at 0.5% Extension Under Load, typ		Elongation, in 2 in. or 50 mm typ	Brinell Hardness (3000 kg load)
Mechanical Properties provided by CDA
ksi	MPa	ksi	MPa	%	typical BHN
85	586	42	290	20	155

Physical Properties

	US Customary	Metric
Physical Properties provided by CDA
Melting Point - Liquidus	1616 °F	880 °C
Melting Point - Solidus	1583 °F	862 °C
Density	0.301 lb/in3 at 68 °F	8.33 gm/cm3 at 20 °C
Specific Gravity	8.33	8.33
Electrical Conductivity	17% IACS at 68 °F	0.097 MegaSiemens/cm at 20 °C
Coefficient of Thermal Expansion	11 · 10-6 per °F (68°-392 °F)	19 · 10-6 per °C (20°-200 °C)
Specific Heat Capacity	0.09 Btu/lb/°F at 68 °F	377.1 J/kg at 20 °C
Modulus of Elasticity in Tension	15000 ksi	103422 MPa

Fabrication Properties

Technique	Suitability
Fabrication Properties provided by CDA
Soldering	Fair
Brazing	Fair
Oxyacetylene Welding	Poor
Gas Shielded Arc Welding	Poor
Coated Metal Arc Welding	Poor
Machinability Rating	55

Thermal Properties

Treatment	Value*	Time**
Thermal Properties provided by CDA Temperature is measured in Fahrenheit. *For Stress Relief, Solution Treatment and Annealing - Time is measured in hours/inch of thickness. For Precipitation Heat Treatment - Time is measured in hours.
Stress Relief	500
Solution Treatment		0

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C86700

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C86700

Typical Uses

Chemical Composition

Machinability

Mechanical Properties

Physical Properties

Fabrication Properties

Thermal Properties

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