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C67300

Stocked alloy specs

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Reference guide

Stocked size schedules

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✔ Standard-stocked product

Extruded and drawn

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.

C67300 spec sheet C67300 size schedule C67300 brochure Weight calculator Standard products

C67300

Product description: Manganese bronze
Tempers: H02 half hard
Solids: 3/4" to 3" O.D.
Hex: 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

CDA ASTM SAE AMS Federal Military Other
C67300   J461
J463 		       

Chemical composition

Cu% Pb% Sn% Zn% Fe% Ni%1 Al% Mn% Si%
Chemical composition according to SAE J463
1Ni value includes Co.
Note: Single values represent maximums.
58.00-
63.00		 0.40-
3.00		  
0.30		  
Rem.		  
0.50		  
0.25		  
0.25		 2.00-
3.50		 0.50-
1.50

Machinability

Copper alloy UNS No. Machinability rating Density (lb/in3 at 68 °F)
C67300 70 0.300

Mechanical properties

Mechanical properties according to SAE J463

C67300

H02 half hard

Size range: up to 1" inclusive
Tensile strength, min Yield strength, at 0.5% extension under load, min Elongation, in 4x Diameter or Specimen Thickness, min Rockwell "B" hardness Remarks
ksi MPa ksi MPa % min HRB  
65 448 40 276 12 70
Size range: over 1" to 3" inclusive
Tensile strength, min Yield strength, at 0.5% extension under load, min Elongation, in 4x Diameter or Specimen Thickness, min Rockwell "B" hardness Remarks
ksi MPa ksi MPa % min HRB  
58 400 35 241 15 70
Size range: over 3"
Tensile strength, min Yield strength, at 0.5% extension under load, min Elongation, in 4x Diameter or Specimen Thickness, min Rockwell "B" hardness Remarks
ksi MPa ksi MPa % min HRB  
55 380 30 205 18 65

Physical properties

Physical properties provided by CDA
  US Customary Metric
Melting point - liquidus 1605 °F 874 °C
Density 0.3 lb/in3 at 68 °F 8.3 gm/cm3 at 20 °C
Specific gravity 8.3 8.3
Electrical conductivity 22% IACS at 68 °F 0.13 MegaSiemens/cm at 20 °C
Thermal conductivity 55 Btu/sq ft/ft hr/°F at 68 °F 95 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)
Modulus of elasticity in tension 17000 ksi 117212 MPa

Fabrication properties

Fabrication properties provided by CDA
Technique Suitability
Machinability rating 70

Common fabrication processes

Hot forging and pressing, machining

Common fabrication processes provided by CDA

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