Manufacturer of Custom Machined Parts

Cast C67300

Tough and corrosion resistant, C67300 manganese bronze, also known as C673, is a high tensile bronze ideal for high-load, low-speed applications that require a combination of outstanding wear characteristics and high bearing strength.

Information

PRODUCT DESCRIPTION: Manganese Bronze
TEMPERS: H02 Half Hard
SOLIDS: 3/4" to 3" O.D.
HEX: Consult Mill
RECTANGLES: Consult Mill
STANDARD LENGTHS: 144”

Typical Uses

FASTENERS: fasteners, lead screw nuts
INDUSTRIAL: bearings, bearings (pins) bushings, clutch bearings, drive shafts, gears and cams, idler pins, piston heads, propeller shafts, pump parts, seal rings, shaft bushings, sleeve bearings, spindles, thrust bearings, wear plates
MARINE: hardware, valve seats
OTHER: connecting rods

Similar or Equivalent Specification

CDAASTMSAEAMSFederalMilitaryOther
C67300J461 J463

Chemical Composition

Cu%Pb%Sn%Zn%Fe%Al%1Al%Mn%Si%
58.00-63.000.40-3.000.30Rem.0.500.250.252.00-3.500.50-1.50

Chemical Composition according to SAE J463

¹Ni value includes Co
Note: Single values represent maximums.

Machinability

Copper Alloy UNS No.Machinability RatingDensity (lb / in³ at 68 °F)
C67300700.300

Mechanical Properties

Mechanical Properties according to SAE J463

H02 Half Hard
Size Range: Up 1" Inclusive

Tensile Strength, minYield Strength, at 0.5% Extension Under Load, minElongation, 4x Diameter or Specimen Thickness, minRockwell "B" HardnessRemarks
ksiMPaksiMPa%min HRB
65448402761270

Size Range: Over 1" to 3" Inclusive

Tensile Strength, minYield Strength, at 0.5% Extension Under Load, minElongation, in 4x Diameter or Specimen Thickness, minRockwell "B" HardnessRemarks
ksiMPaksiMPa%min HRB
58400352411570

Size Range: Over 3"

Tensile Strength, minYield Strength, at 0.5% Extension Under Load, minElongation, in 4D, minRockwell "B" HardnessRemarks
ksiMPaksiMPa%min HRB
55380302051865

Physical Properties

 US CustomaryMetric
Melting Point - Liquidus1605 °F 874 °C
Density0.3 lb/in³ at 68 °F 8.3 gm/cm³ at 20 °C
Specific Gravity8.38.3
Electrical Conductivity22% IACS at 68 °F 0.13 MegaSiemens/cm at 20 °C
Thermal Conductivity55 Btu/sq ft/ft hr/°F at 68 °F 95 W/m at 20 °C
Coefficient of Thermal Expansion 68-57211 · 10-6 per °F (68-572 °F)19 · 10-6 per °C (20-300 °C)
Modulus of Elastic in Tension17000 ksi117212 MPa

Fabrication Properties

TechniqueSuitability
Machinability Rating70

Ready for a Quote?

Randall Bearings has a team of experts ready to assist you in selecting the proper materials and manufacturing your custom part.

Scroll to Top