Producer of custom machined parts, specializing in bronze and other popular alloys for your manufacturing needs.
COPPER-BASED ALLOYS
C67400
CAST C67400
INFORMATION
PRODUCT DESCRIPTION: Manganese Bronze
TEMPERS: Extruded and Drawn
SOLIDS: 3/4" to 3" O.D.
HEX: 3/8" to 2" O.D.
RECTANGLES: Consult Mill
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%
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 / in 3 at 68 °F)
C67400
30
0.292
MECHANICAL PROPERTIES
Mechanical Properties according to SAE J463

Extruded and Drawn
SIZE RANGE: UP TO 1" INCLUSIVE
Tensile Strength, min
Yield Strength, at 0.5% Extension Under Load, min
Elongation, in 2 in. or 50 mm 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 0.5% Extension Under Load, min
Elongation, in 2 in. or 50 mm 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 0.5% Extension Under Load, min
Elongation, in 2 in. or 50 mm min
Rockwell "B" Hardness
Remarks
ksi
MPa
ksi
MPa
%
min HRB
70
485
36
250
12
78

PHYSICAL PROPERTIES
US Customary
Metric
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 Elastic in Tension
16000 ksi
110317 MPa
Modulus of Rigidity
6000 ksi
41369 MPa
FABRICATION PROPERTIES
Technique
Suitability
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*
Annealing
800
1100
Hot Treatment
1100
1250


SPEC SHEET


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