bedra 90710
Tin Bronze
Characteristics:
bedra 90710 is a continuous cast tin bronze alloy that combines high mechanical strength with good ductility, corrosion resistance, and wear resistance. It is typically used in gear components and high-strength bushings and bearings operating under conditions of high load, low speed, and heavy stress.
Typical applications:
It is suitable for wear-resistant components, including bearings designed for heavy loads and low speeds, gearboxes, gears, speed reducers, valve bodies, worm gears, and worm wheels.
Standardization and composition
| UNS | C90710 |
|---|---|
| JIS | PBC2 |
| GB | ZCuSn10P1 |
| Cu | balance |
| Sn | 9.0-11.5% |
| P | 0.8-1.1% |
| Pb | ≤ 0.25% |
| Fe | ≤ 0.10% |
| Zn | ≤ 0.05% |
Physical properties①
Note①：The testing temperature is 20℃. Note②：The testing temperature range is 20℃ to 300℃.
| Density (g/cm³) | 8.77 |
|---|---|
| Metling temperature (℃) | 999 |
| Electrical conductivity (%IACS) | 10 |
| Thermal conductivity (W / m x K) | 70.6 |
| Coefficient of thermal expansion② (10-6/K) | 18.4 |
| Modulus of elasticity (GPa) | 103.4 |
Fabrication Properties
Note③：C36000 = 100%
| Cold workability | Excellent |
| Hot workability | Poor |
| Brazing | Excellent |
| Resistance welding | Good |
| Machinability rating③ | 20% |
Mechanical Properties
| Diameter (mm) | Temper | Tensile Strength (MPa min.) | Yield Strength (MPa min.) | Elongation (% min.) | Hardness (HBW min.) |
|---|---|---|---|---|---|
| 15 ≤ Ф < 100 | M07 | 310 | 170 | 2 | 90 |
Dimension Tolerance and Delivery Form
Note④：The tolerances listed in the table are specified as all plus or all minus. When tolerances are specified as plus and minus (±), half the values given.
| Straight bar | ||||
| Diameter (mm) | Tolerance④ (mm) | Ovality (mm) | Length (mm. max.) | Straightness (mm/m max.) |
| 20 ≤ Φ < 30 | 0.5 | 0.2 | 4000 | 2.0 |
| 30 ≤ Φ < 60 | 0.8 | 0.4 | 4000 | 3.0 |
| 60 ≤ Φ < 80 | 1.6 | 0.8 | 4000 | 4.0 |
| 80 ≤ Φ < 100 | 2.0 | 1.0 | 3000 | 4.0 |
Other Delivery Forms
Tubes
Further product information
PDF Datasheet | EN PDF Datasheet | VI PDF Datasheet | ZH
Please contact us
Sales Asia-Pacific (Excluding-India)
Sales India
Sales North America
Sales Europe
Berkenhoff GmbH (headquarters)
- Kinzenbach plant
- Berkenhoffstrasse 14
- 35452 Heuchelheim
- Germany
- +49 641 601 0
- +49 641 601 222
- info(at)bedra.com
Berkenhoff GmbH
- Merkenbach plant
- Rehmühle 1
- 35745 Herborn
- Germany
- +49 2772 5002 0
- +49 2772 5002 155
- info(at)bedra.com
bedra Vietnam Alloy Material Co., Ltd
- Lot CN-06, Hoa Phu Industrial Park,
Mai Dinh Commune,
Hiep Hoa District, Bắc Ninh Province,
Vietnam
- +84 2043900104
- +84 2043900110
- info-asia(at)bedra.com
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