Chemical Properties -- C86300 Bronze / SAE 430 B / Manganese Bronze
Element |
Nominal % |
Minimum % |
Maximum % |
| Aluminum |
6 |
5 |
7.5 |
| Antimony |
- |
- |
- |
| Copper |
63 |
60 |
66 |
| Iron |
3 |
2 |
4 |
| Lead |
- |
- |
.20 |
| Nickel |
- |
- |
1 |
| Manganese |
3 |
2.5 |
5 |
| Silicon |
- |
- |
- |
| Sulfur |
- |
- |
- |
| Tin |
- |
- |
.20 |
| Zinc |
25 |
22 |
28 |
Mechanical Properties -- C86300 Bronze / SAE 430 B / Manganese Bronze
| MO1 - As Sand Cast |
|
| Tensile Strength: |
Minimum 119 ksi |
| Yield Strength: |
Minimum 62 ksi - 0.5% Ext. under load |
| Elongation: |
Minimum 18% in 2 in. |
| Brinell Hardness: |
225 @ 3000 kg load |
| |
|
| M02 - As Centrifugal Cast |
|
| Tensile Strength: |
Minimum 110 ksi |
| Yield Strength: |
Minimum 624 ksi - 0.5% Ext. under load |
| Elongation: |
12% in 2 inches |
| |
|
| M07 - As Continuous Cast |
|
| Tensile Strength: |
Minimum 110 ksi |
| Yield Strength: |
Minimum 62 ksi - 0.5% Ext. under load |
| Elongation: |
14% in 2 inches |
Physical Properties -- C86300 Bronze / SAE 430 B / Manganese Bronze
| Property |
US Customary |
| Melting Point - Liquidus |
1693 F |
| Melting Point - Solidus |
1625 F |
| Density |
0.283 lb/in3 at 68 F |
| Specific Gravity |
7.83 |
| Specific Heat Capacity |
0.09 Btu/lb/oF at 68 F |
| Coefficient of Thermal Expansion |
12.0 ·10-6 per oF (68-212 F) |
| Thermal Conductivity |
20.5 Btu · ft/(hr · ft2·oF)at 68F |
| Electrical Conductivity |
8 %IACS @ 68 F |
| Electrical Resistivity |
130.8 ohms-cmil/ft @ 68 F |
| Modulas of Elasticity in Tension |
14,200 ksi |
Fabrication Properties -- C86300 Bronze / SAE 430 B / Manganese Bronze
| Joining Methods |
Suitability |
| Soldering |
Poor |
| Brazing |
Poor |
| Oxyacetylene Welding |
Poor |
| Gas Shielded Arc Welding |
Poor |
| Coated Metal Arc Welding |
Good |
| Machinability (C360 Brass =100) |
20 |
UNS C86300 (SAE 430B) Manganese Bronze is a high strength copper alloy intended for use in applications requiring a good wear characteristics and high bearing strength for heavy loads and slow speeds. Typical applications include but are not limited to slow speed heavy duty load bearings, gears, cams and hydraulic cylinder parts. Conforms to continuous cast specification ASTM B-505.
|
