Aluminum Bronze C-624

Chemical Composition
(%max., unless shown as range or min.)

  Cu(1) Al Fe Mn Si Sn
Min./Max. Rem. 10.0-11.5 2.0-4.5 .30 .25 .20
Nominal 86.0 11.0 3.0 - - -

(1) Cu value includes Ag.
Note: Cu + Sum of Named Elements, 99.5% min.

Applicable Specifications
Product Specification
Forgings SAE J461, J463
Rod ASTM B150
Rod, Welding AWS A5.7
Common Fabrication Processes
Hot bending, Hot forging
Fabrication Properties
Joining Technique Suitability
Soldering Not Recommended
Brazing Fair
Oxyacetylene Welding Not Recommended
Gas Shielded Arc Welding Good
Coated Metal Arc Welding Good
Spot Weld Good
Seam Weld Good
Butt Weld Good
Capacity for Being Cold Worked Poor
Capacity for Being Hot Formed Excellent
Forgeability Rating 80
Machinability Rating 50
 
Mechanical Properties
Physical Properties
  US Customary Metric
Melting Point - Liquidus 1900 F 1038 C
Melting Point - Solidus 1880 F 1027 C
Density 0.269 lb/in3 at 68 F 7.45 gm/cm3 @ 20 C
Specific Gravity 7.45 7.45
Electrical Resistivity 86.4 ohms-cmil/ft @ 68 F 14.36 microhm-cm @ 20 C
Electrical Conductivity 12 %IACS @ 68 F 0.07 MegaSiemens/cm @ 20 C
Thermal Conductivity 34.0 Btu · ft/(hr · ft2 · oF) at 68F 58.8 W/m · oK at 20 C
Coefficient of Thermal Expansion 9.0 ·10-6 per oF (68-572 F) 16.2 ·10-6 per oC (20-300 C)
Specific Heat Capacity 0.09 Btu/lb/oF at 68 F 376.78 J/kg · oK at 293 K
Modulas of Elasticity in Tension 17000 ksi 117000 MPa
Modulus of Rigidity 6400 ksi 44130 MPa
Tempers Most Commonly Used
Other
ROD H02, M30
SHAPES M30

Typical Uses
Fasteners
Nuts
Industrial
Hydraulic Bushings, Support Bushings, Valve Balls, Welding Wire, Drift Pins, Tie Rods, Wear Plates, Bushings, Gears, Cams


Mechanical Properties (measured at room temperature, 68 F (20 C)
*Fatigue Strength: 100 x 10 6cycles, unless indicated as [N]X 106.
Temper Section
Size 		Cold
Work 		Typ/
Min 		Temp Tensile
Strength 		Yield
Strength
(0.5% ext.
under load) 		Yield
Strength
(0.2%
offset) 		Yield
Strength
(0.05%
offset) 		El Rockwell
Hardness 		Vickens
Hard. 		Brinell
Hard. 		Shear
Strength 		Fatigue
Strength* 		Izod
Impact
Strength

in.
%

F
ksi
ksi
ksi
ksi
%
B
C
F
30T
500
500
3000
ksi
ksi
ft-lb

mm.


C
MPa
MPa
MPa
MPa








MPa
MPa
J
Bar
M30 3 0 TYP 68 90 40 - - 18 87 - - - - - - - - 0.0

76

20 621 276 - - 18 87 - - - - - - - - 0.0
O50 1 0 TYP 68 100 50 - - 14 92 - - - - - - - - 0.0

25.4

20 689 345 - - 14 92 - - - - - - - - 0.0
O50 2 0 TYP 68 93 45 - - 14 91 - - - - - - - - 0.0

51

20 641 310 - - 14 91 - - - - - - - - 0.0
Rod
H02 1 10 TYP 68 105 52 - - 14 92 - - - - - - 65 36 0.0

25.4

20 724 359 - - 14 92 - - - - - - 448 248 0.0
H02 2 10 TYP 68 95 48 - - 14 92 - - - - - - 62 35 0.0

51

20 655 331 - - 14 92 - - - - - - 427 241 0.0
H02 3 10 TYP 68 95 47 - - 14 91 - - - - - - 60 34 0.0

76

20 655 324 - - 14 91 - - - - - - 414 234 0.0
M30 4 0 TYP 68 90 40 - - 18 87 - - - - - - 58 32 0.0

102

20 621 276 - - 18 87 - - - - - - 400 221 0.0

Tel: (714) 550-1700 - Fax: (714) 550-1710 - Email: sales@beartechalloys.com