
Characteristics:
It is a phosphor bronze alloy consisting of approximately 8% tin. The tin enhances its corrosion resistance and strength, while the phosphorus improves its wear resistance and stiffness. This alloy is typically manufactured in a hard temper, resulting in very high tensile strength that makes it suitable for high-load applications, especially given its excellent fatigue properties.
Typical applications:
It is mainly used in high-impact bearing and load-bearing applications that require excellent wear resistance. Additionally, it is employed in electrical connectors and elastic components such as springs and reeds.
| UNS | C52100 |
|---|---|
| EN | CuSn8 (CW453K) |
| JIS | C5212 |
| GB | C52100 (QSn8-0.3) |
| Cu | balance |
| Pb | ≤0.02% |
| P | 0.01-0.4% |
| Sn | 7.5-8.5% |
| Fe | ≤0.1% |
| Ni | ≤0.2% |
| Density (g/cm³) | 8.8 |
|---|---|
| Metling temperature (℃) | 1027 |
| Electrical conductivity (%IACS) | 13 |
| Thermal conductivity (W / m x K) | 62 |
| Coefficient of thermal expansion② (10-6/K) | 17.5 |
| Modulus of elasticity (GPa) | 110.3 |
| Cold workability | Good |
| Hot workability | Poor |
| Brazing | Excellent |
| Machinability rating③ | 20% |
| Temper | Diameter (mm) | Tensile Strength (MPa min.) | Yield Strength (MPa min.) | Elongation (% min.) | Hardness (HB min.) |
|---|---|---|---|---|---|
| R450 | 20≤Φ≤50 | 450 | 280 | 26 | 140 |
| R400 | 50<Φ≤100 | 400 | 280 | 26 | 100 |
| Straight bar | ||||
| Diameter (mm) | Tolerance④ (mm) | Ovality (mm) | Length (mm. max.) | Straightness (mm/m max.) |
| 20 ≤ Φ < 30 | 0.17 | 0.09 | 3000 | 2.0 |
| 30 ≤ Φ < 50 | 0.20 | 0.10 | 3000 | 3.0 |
| 50 ≤ Φ < 80 | 0.37 | 0.20 | 3000 | 4.0 |
| 80 ≤ Φ ≤ 100 | 0.50 | 0.25 | 2000 | 4.0 |
Tubes, Profiles
PDF Datasheet | EN PDF Datasheet | VI PDF Datasheet | ZH