C84800 / CDA 848 Red Brass Bronze Alloys
Specification :
| CDA | ASTM | ASARCON | SAE | AMS | Federal | Military | Other |
|---|---|---|---|---|---|---|---|
| C848 | B505 B505M |
Plumbing Goods Brass |
Chemical Composition :
| Cu%1 | Pb% | Sn% | Zn% | Fe% | P% | Ni%2 | Al% | S% | Sb% | Si% | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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Chemical Composition according to ASTM B505/B505M-18
1In determining Cu min., Cu may be calculated as Cu + Ni. 2Ni value includes Co.
Single values represent maximums.
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| 75.00- 77.00 |
5.50- 7.00 |
2.00- 3.00 |
13.00- 17.00 |
0.40 | 0.02 | 1.00 | 0.005 | 0.08 | 0.25 | 0.005 | |
Machinability :
| Copper Alloy UNS No. | Machinability Rating | Density (lb/in3 at 68 °F) |
|---|---|---|
| C848 | 90 | 0.310 |
Mechanical Properties :
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Mechanical Properties according to ASTM B505/B505M-18
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| Tensile Strength, min | Yield Strength, at .5% Extension Under Load, min | Elongation, in 2in. or 50mm min | Brinell Hardness (500 kg load) | Remarks | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| ksi | MPa | ksi | MPa | % | typical BHN | ||||||
| 30 | 207 | 15 | 103 | 16 | 55 | ||||||
Physical Properties :
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Physical Properties provided by CDA
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| US Customary | Metric | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Melting Point – Liquidus | 1750 °F | 954 °C | |||||||||
| Melting Point – Solidus | 1530 °F | 832 °C | |||||||||
| Density | 0.31 lb/in3 at 68 °F | 8.58 gm/cm3 at 20 °C | |||||||||
| Specific Gravity | 8.58 | 8.58 | |||||||||
| Electrical Conductivity | 16.4% IACS at 68 °F | 0.095 MegaSiemens/cm at 20 °C | |||||||||
| Thermal Conductivity | 41.6 Btu/sq ft/ft hr/°F at 68 °F | 72 W/m at 20 °C | |||||||||
| Coefficient of Thermal Expansion 68-392 | 10 · 10-6 per °F (68-392 °F) | 17.3 · 10-6 per °C (20-200 °C) | |||||||||
| Specific Heat Capacity | 0.09 Btu/lb/°F at 68 °F | 377.1 J/kg at 293 °C | |||||||||
| Modulus of Elasticity in Tension | 15000 ksi | 103400 MPa | |||||||||
| Magnetic Permeability | 1 | 1 | |||||||||
Fabrication Properties :
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Fabrication Properties provided by CDA
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| Joining Technique | Suitability | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Soldering | Excellent | ||||||||||
| Brazing | Good | ||||||||||
| Oxyacetylene Welding | Not Recommended | ||||||||||
| Gas Shielded Arc Welding | Not Recommended | ||||||||||
| Coated Metal Arc Welding | Fair | ||||||||||