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C86500 Manganese Bronze Available from Dura-Bar Metal Services #

Manganese Bronze C67300

This is a high strength leaded silicon manganese bronze with typically good bearing qualities. This alloy maintains high impact resistance with excellent machinability making it well suited for clutch bearings, shaft bushings, sleeve bearings, thrust bearings, pump parts, drive shafts, bearing pins, wear plates, gears and cams. Resists squashing out under high loads and extreme wear applications.


Cu% Sn% Pb% Zn% Fe% Ni% Sn% AI% Mn% Si%
58.0 - 63.0
.30.40 - 3.0
Rem
0.5
0.25
0.3
0.25
2.0 - 3.5
0.50 - 1.5

Typical Uses

Fasteners:
Fasteners, Lead Screw Nuts
Industrial:
Gears and Cams, Wear Plates, Bushings, Seal Rings, Idler Pins, Piston Heads, Brearing Pins, Thrust Bearings, Sleeve Bearings, Propeller Shafts, Shaft Bushings, Clutch Bearings, Drive Shafts, Spindles, Pump Parts, Bearings
Marine:
Hardware, Valve Seats
Other:
Connecting Rods

Alloy Properties

Tensile Strength, min 75 ksi 517 MPa
Yield Strength @ .5% ext under load min 55 ksi 379 MPa
Elongation in 2 in. or 50 mm min, %   15
Brinell Hardness, min   153
Machinability Rating   70
  US Customary Metric
Melting Point-Liquidus 1605 F 874 C
Melting Point-Solidus 1570 F 854 C
Density 0.318 lb/in3
@ 68 F
8.8 gm/cm3
@ 20 C
Specific Gravity 8.80 8.80
Electrical Resistivity 470 ohms-cmil/ft
@ 68 F
7.81 microhm-cm
@ 20 C
Electrical Conductivity 12 %IACS @ 68 F 0.069 MegaSiemens/
cm @ 20 C
Thermal Conductivity 43.2 Btu ft/
(hr ft2 °F) @ 68 F
74.8 W/m °K @ 20 C
Coefficient of
Thermal Expansion
100 10-6 per °F
(68-572 F)
0.0 10-6 per °C
(20-300 C)
Specific Heat Capacity 0.090 Btu/lb/°F
@ 68 F
377.1 J/kg °K
@ 293 K
Modulus of Elasticity
in Tension
14000 ksi 96500 MPa
Magnetic Permeability* 10 1.0

*Field Strength 16 kA/m

Joining Technique Suitability
Soldering Excellent
Brazing Good
Oxyacetylene Welding Fair
Gas Shielded Arc Welding Fair
Coated Metal Arc Welding Fair