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Copper Alloy No.
C95800
Alpha Nickel Aluminum
Bronze CDA 958
ASTM B 505 , ASTM B 271
Chemical Composition % by
weight
| Element |
Nominal |
Minimum |
Maximum |
| Aluminum |
9 |
8.5 |
9.5 |
| Copper |
81 |
79 |
- |
| Iron |
4 |
3.5 |
4.5 |
| Manganese |
1 |
.8 |
1.5 |
| Nickel |
5 |
4 |
5 |
| Silicon |
- |
- |
.10 |
Applications
Propeller hubs, blades and other parts in
contact with salt water.
Mechanical Properties (as
cast)
M07 - As Continuous Cast
| Hardness* |
Brinell Hardness (3000 kg
load) |
159 |
| Tensile Strength** |
KSI |
90 |
| Yield Strength ** |
KSI (0.5% Ext. under load) |
38 |
| Elongation** |
% in 2 inch |
18 |
**Test values are nominal approximations and depend on specimen
size and orientation.
Physical Properties
| Thermal Conductivity |
BTU/ (sq ft-ft-hr-F) |
20.8 |
| Specific Heat |
BTU/lb/ºF @ 68F |
.105 |
| Thermal Expansion |
Per °F from 68 F to 572 F |
.000009 |
| Density |
lb/cu in @ 68 F |
.276 |
| Electrical Conductivity* (Annealed) |
% IACS @ 68 F |
7.1 |
| Modulus of Elasticity |
KSI |
16,500 |
*Volume basis
Fabrication Practices
| Stress relieving temperature |
600 F or 316 C |
| Time at temperature |
1 hour per inch of section
thickness |
| Responds to heat treatment |
* |
| Machinability rating (Free Cutting
Brass=100) |
50 |
| Suitability for being joined by: |
Soldering/Good |
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Brazing/Fair |
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Oxyacetylene Welding/Not
Recommended |
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Carbon Arc Welding/Poor |
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Gas Shielded Arc Welding/Good |
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Coated Metal Arc Welding/Good |
*Castings exposed to seawater or other
aggressive environments should be temper annealed.
The values listed above represent reasonable
approximations suitable for general engineering use. Due to commercial
variations in composition and to manufacturing limitations, they should not
be used for specification purposes. See applicable A.S.T.M. specification
references.
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