BRONZE - 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 |
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 |
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 | |||