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C86400

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Continuous Cast

Manganese bronze alloys can operate under very high loads and speeds. Besides excellent mechanical qualities, these alloys have good corrosion resistance. The standard alloy in this group is high tensile C86300, which is comprised of copper, manganese, aluminum, and iron. This combination raises the tensile strength to over 110,000 KSI.

C86400 SPEC SHEET CONCAST LINE CARD

C86400

Product Description: Manganese Bronze
Solids: 1/2" to 9" O.D.
Tubes: 1" to 9" O.D.
Rectangles: Up to 15"
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: door hardware for prisons, window hardware
Consumer: musical instruments, piano keys
Electrical: electrical components, electrical equipment, switches
Fasteners: screw down nuts
Industrial: bearing cage blanks, bearings, brackets, cams, fittings, lever arms, light duty gears, machinery parts, propellers, pump fixtures, roller bearings, valve stems
Marine: boat parts, covers for marine hardware, marine fittings, marine hardware
Plumbing: fixtures

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.
56.00-
62.00		 0.50-
1.50		 0.50-
1.50		 34.00-
42.00		 0.40-
2.00		  
1.00		 0.50-
1.50		 0.10-
1.50

Machinability

Copper Alloy UNS No. Machinability Rating Density (lb/in3 at 68 °F)
C86400 65 0.301

Mechanical Properties

Mechanical Properties provided by CDA
Tensile Strength, min Yield Strength, at 0.5% extension under load, typ Elongation, in 2 in. or 50 mm typ Brinell Hardness (500 kg load)   Remarks
ksi MPa ksi MPa % typical BHN  
65 448 25 172 20 90  

Physical Properties

Physical Properties provided by CDA
  US Customary Metric
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 19% IACS at 68 °F 0.110 MegaSiemens/cm at 20 °C
Thermal Conductivity 51 Btu/sq ft/ft hr/°F at 68 °F 88.3 W/m at 20 °C
Coefficient of Thermal Expansion 68-572 11 · 10-6 per °F (68-572 °F) 19 · 10-6 per °C (20-300 °C)
Specific Heat Capacity 0.09 Btu/lb/°F at 68 °F 377.1 J/kg at 20 °C
Modulus of Elasticity in Tension 14000 ksi 96527 MPa

Fabrication Properties

Fabrication Properties provided by CDA
Technique Suitability
Soldering Fair
Brazing Fair
Oxyacetylene Welding Poor
Gas Shielded Arc Welding Poor
Coated Metal Arc Welding Poor
Machinability Rating 65

Thermal Properties

Thermal Properties provided by CDA

*Temperature is measured in Fahrenheit.   **Time is measured in minutes.
Treatment Value* Time**
Stress Relief 500  
Solution Treatment   0

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