MANGANESE BRONZE

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DESCRIPTION

C67300
SPEC SHEET
Manganese Bronze
Manganese Bronze
Manganese Bronze
Manganese Bronze
Manganese Bronze
Manganese Bronze
Manganese Bronze

DESCRIPTION

The C67300 manganese bronze is high in strength alloy with good bearing qualities. The alloy maintains high impact resistance with good machinability by making it well suited for clutch bearings, shaft bushings, sleeve bearings, thrust bearings, pump parts, drive shafts, bearing pins, wear plates, gears and cams.

CHEMICAL COMPOSITION

Elements Min (%) Max (%)
Cu 58.00 63.00
Pb 0.40 3.00
Si 0.50 1.50
Mn 2.00 3.50
Sn - 0.30
Fe - 0.50
Ni - 0.25
Al - 0.25
Total Others - 0.50
Zn Remainder

Mechanical Properties According To C67300 (As Per Temper HO2)

Range (Inch) From To UTS Min (Ksi) PS Min (Ksi) ELo Min (Ksi) Hardness Min (HRB) Hardness Max
Round (Dia) 0.059 1.000 65 40 12 70 -
1.000 2.953 58 35 15 70 -
Hex (A/F) 0.118 1.000 65 40 12 70 -
1.000 2.756 58 35 15 70 -
Square (A/F) 0.118 2.362 60 30 20 70 -
Rectangle (Thickness) 0.118 1.968 60 30 20 70 -
Range (mm) From To UTS Min (Mpa) PS Min (Mpa) ELo Min (%) Hardness Min (HRB) Hardness Max
Round (Dia) 1.5 25 450 275 12 70 -
25 75 400 240 15 70 -
Hex (A/F) 3 25 450 275 12 70 -
25 70 400 240 15 70 -
Square (A/F) 3 60 415 205 20 70 -
Rectangle (Thickness) 3 50 415 205 20 70 -
PHYSICAL PROPERTIES
Melting Point - Liquidus°F1605
Density lb/cu in. at 68°F0.3
Specific Gravity8.3
Electrical Conductivity % IACS at 68°F22
Thermal Conductivity Btu/ sq ft/ ft hr/ °F at 68°F55
Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F) 11
Modulus of Elasticity in Tension ksi17000
FABRICATION PROPERTIES
Technique Suitability
Machinability Rating70

Common Fabrication Processes

  • Hot Forming
  • Hot Pressing
  • Machining

TYPICAL USES

  • Fasteners
  • Industrial
  • Marine
  • Other

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