C67400

Product description: Manganese bronze
Tempers: Extruded and drawn
Solids: 3/4" to 3" O.D.
Hex: 3/8" to 2" O.D.
Standard lengths: 144"

Typical uses

Industrial: Bushings, cams, chain guides, food conveyor chain, gears, shafts, wear plates
Other: Connecting rods

Similar or equivalent specification

CDA	ASTM	SAE	AMS	Federal	Military	Other
C67400		J461 J463

Chemical composition

Cu%	Pb%	Sn%	Zn%	Fe%	Ni%1	Al%	Mn%	Si%
Chemical composition according to SAE J463 1Ni value includes Co. Single values represent maximums.
57.00- 60.00	0.50	0.30	Rem.	0.35	0.25	0.50- 2.00	2.00- 3.50	0.50- 1.50

Machinability

Copper alloy UNS No.	Machinability rating	Density (lb/in3 at 68 °F)
C67400	30	0.292

Mechanical properties

Mechanical properties according to SAE J463

C67400

Extruded and drawn

Size range: up to 1" inclusive

Tensile strength, min		Yield strength, at 00.5% extension under load, min		Elongation, 4x diameter or thickness of specimen, min	Rockwell "B" hardness	Remarks
ksi	MPa	ksi	MPa	%	min HRB
78	540	40	275	8	84

Size range: over 1" to 2 " inclusive

Tensile strength, min		Yield strength, at 00.5% extension under load, min		Elongation, 4x diameter or thickness of specimen, min	Rockwell "B" hardness	Remarks
ksi	MPa	ksi	MPa	%	min HRB
75	515	40	275	10	80

Size range: over 2" to 3" inclusive

Tensile strength, min		Yield strength, at 00.5% extension under load, min		Elongation, 4x diameter or thickness of specimen, min	Rockwell "B" hardness	Remarks
ksi	MPa	ksi	MPa	%	min HRB
70	485	36	250	12	78

Physical properties

	US Customary	Metric
Physical properties provided by CDA
Melting point - liquidus	1625 °F	885 °C
Melting point - solidus	1590 °F	866 °C
Density	0.292 lb/in3 at 68 °F	8.08 gm/cm3 at 20 °C
Specific gravity	8.08	8.08
Electrical conductivity	23% IACS at 68 °F	0.13 MegaSiemens/cm at 20 °C
Thermal conductivity	58 Btu/sq ft/ft hr/°F at 68 °F	100.5 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	16000 ksi	110317 MPa
Modulus of rigidity	6000 ksi	41369 MPa

Fabrication properties

Technique	Suitability
Fabrication properties provided by CDA
Soldering	Fair
Brazing	Good
Oxyacetylene welding	Not recommended
Gas shielded arc welding	Fair
Coated metal arc welding	Not recommended
Spot weld	Good
Seam weld	Good
Butt weld	Good
Capacity for being cold worked	Poor
Capacity for being hot formed	Excellent
Forgeability Rating	100
Machinability rating	30

Thermal properties

Treatment	Minimum*	Maximum*
Thermal properties provided by CDA *Temperature is measured in Fahrenheit.
Annealing	800	1100
Hot treatment	1100	1250

Common fabrication processes

Hot forging and pressing, machining

Common fabrication processes provided by CDA

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C67400

Stocked alloy specs

Reference guide

Stocked size schedules

C67400

Typical uses

Similar or equivalent specification

Chemical composition

Machinability

Mechanical properties

C67400

Extruded and drawn

Size range: up to 1" inclusive

Size range: over 1" to 2 " inclusive

Size range: over 2" to 3" inclusive

Physical properties

Fabrication properties

Thermal properties

Common fabrication processes

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