Cast C53400
Phosphor bronze alloys such as C53400, also known as C534, consist of copper with 0.50–11.00% of tin and 0.01–0.35% phosphorus. The tin increases the corrosion resistance and strength of the alloy. The phosphorus increases the wear resistance and stiffness of the alloy. These alloys are notable for their toughness, strength, low coefficient of friction, and fine grain.
Information
Product description: Phosphor Bronze B-1
TEMPERS: H04 Hard
Solids: 3/8” to 2 1/2” O.D.
HEX: 3/8" to 2" O.D.
Rectangles: Consult Mill
Standard lengths: 144”
Typical uses
Industrial: bearings, bushings, fasteners
Similar or equivalent specification
| CDA | ASTM | SAE | AMS | Federal | Military | Other |
|---|---|---|---|---|---|---|
| C53400 | B139 B139M |
Chemical composition
| Cu% | Pb% | Sn% | Zn% | Fe% | P% |
|---|---|---|---|---|---|
| Rem. | 0.80-1.20 | 3.50-5.80 | 0.30 | 0.10 | 0.03-0.35 |
Chemical composition according to ASTM B139/B139M-12(2017)
Note: Cu + sum of named elements, 99.5% min. Single values represent maximums.
Machinability
| Copper alloy UNS no. | Machinability rating | Density (lb / in³ at 68 °F) |
|---|---|---|
| C53400 | 70 | 0.320 |
Mechanical properties
Mechanical properties according to ASTM B139/B139M-12(2017)
H04 Hard
Size Range: Over 1/16" to 1/4" Round and Hexagonal Inclusive
| Tensile strength, min | Yield strength, at 0.5% extension under load, min | Elongation, 4x Diameter or Specimen Thickness, min | Rockwell "B" Hardness | Remarks | ||
|---|---|---|---|---|---|---|
| ksi | MPa | ksi | MPa | % | typical HRB | |
| 65 | 450 | 8 | 86 | |||
Size Range: 1/4" to 1/2" Round and Hexagonal Inclusive
| Tensile strength, min | Yield strength, at 0.5% extension under load, min | Elongation, 4x Diameter or Specimen Thickness, min | Rockwell "B" Hardness | Remarks | ||
|---|---|---|---|---|---|---|
| ksi | MPa | ksi | MPa | % | typical HRB | |
| 60 | 415 | 10 | 86 | |||
Size Range: Over 1/2" to 1" Round and Hexagonal Inclusive
| Tensile strength, min | Yield strength, at 0.5% extension under load, min | Elongation, 4x Diameter or Specimen Thickness, min | Rockwell "B" Hardness | Remarks | ||
|---|---|---|---|---|---|---|
| ksi | MPa | ksi | MPa | % | typical HRB | |
| 55 | 380 | 12 | 86 | |||
Size Range: Over 1" Round and Hexagonal
| Tensile strength, min | Yield strength, at 0.5% extension under load, min | Elongation, 4x Diameter or Specimen Thickness, min | Rockwell "B" Hardness | Remarks | ||
|---|---|---|---|---|---|---|
| ksi | MPa | ksi | MPa | % | typical HRB | |
| 50 | 345 | 15 | 86 | |||
Physical properties
| US Customary | Metric | |
|---|---|---|
| Melting point - liquidus | 1920 °F | 1049 °C |
| Melting point - solidus | 1750 °F | 954 °C |
| Density | 0.32 lb/in³ at 68 °F | 8.91 gm/cm³ at 20 °C |
| Specific gravity | 8.91 | 8.91 |
| Electrical conductivity | 15% IACS at 68 °F | 0.08 MegaSiemens/cm at 20 °C |
| Thermal conductivity | 40 Btu/sq ft/ft hr/°F at 68 °F | 69.28 W/m at 20 °C |
| Coefficient of thermal expansion 68-572 | 9.9 · 10-6 per °F (68-572 °F) | 17.1 · 10-6 per °C (20-300 °C) |
| Specific heat capacity | 0.09 Btu/lb/°F at 68 °F | 377.1 J/kg at 20 °C |
| Modulus of elastic in tension | 16000 ksi | 110310 MPa |
| Modulus of Rigidity | 6400 ksi | 41300 MPa |
Fabrication properties
| Technique | Suitability |
|---|---|
| Soldering | Excellent |
| Brazing | Good |
| Oxyacetylene welding | Poor |
| Gas shielded arc welding | Fair |
| Coated metal arc welding | Poor |
| Spot Weld | Fair |
| Seam Weld | Fair |
| Butt Weld | Good |
| Capacity for Being Cold Worked | Good |
| Capacity for Being Hot Formed | Poor |
| Machinability rating | 70 |
Thermal properties
| Treatment | Minimum * | Maximum * |
|---|---|---|
| Annealing | 900 | 1250 |
* Temperature is measured in Fahrenheit