BearMet350
Copper Nickel Tin
Characteristics:
This material offers ultra-high strength of up to 1400 MPa and resists galling, corrosion, and wear, making it suitable for extremely harsh service conditions. It also provides high fatigue strength for a longer service life and greater reliability, even under heavy loads. Additionally, it is non-magnetic, beryllium-free, and lead-free, with overall performance close to that of C17200, positioning it as an ideal substitute material for beryllium copper.
Typical applications:
• Marine, Oil & Gas: MWD (measurement while drilling), LWD (logging while drilling), directional drilling tools, drill bit bearings, well-head control and manifold systems, ROV, fluid control and landing systems
• Aviation: Bearings and bushings in landing gears, wheel and brake components
Standardization and composition
Note①：Including Silver
| UNS | C72900 |
|---|---|
| GB | BSn15-8 |
| Cu① | balance |
| Ni | 14.5-15.5% |
| Sn | 7.5-8.5% |
| Fe | ≤ 0.5% |
| Zn | ≤ 0.5% |
| Mn | ≤ 0.3% |
| Mg | ≤ 0.15% |
| Nb | ≤ 0.10% |
| Pb | ≤ 0.02% |
| Other | ≤0.50% |
Physical properties②
Note②：The testing temperature is 20℃. Note③：The testing temperature range is 20℃ to 300℃.
| Density (g/cm³) | 8.94 |
|---|---|
| Metling temperature (℃) | 1095 |
| Electrical conductivity (%IACS)9 | |
| Thermal conductivity (W / m x K) | 50 |
| Coefficient of linear mean expansion③ (10-6/K) | 15.8 |
| Modulus of elasticity (GPa) | 128 |
Fabrication Properties
| Cold workability | Good |
| Hot workability | Good |
| Brazing | Good |
| Resistance welding | Good |
Mechanical Properties④
Note④：bedra technical standards
| Diameter (mm) | Temper | Tensile Strength (MPa min.) | Yield Strength (MPa min.) | Elongation (% min.) | Hardness (HRC min.) |
|---|---|---|---|---|---|
| 16 ≤ Ф < 92 | TX00 | 910 | 738 | 5 | 30 |
| 20 ≤ Ф < 40 | TS02 | 965 | 895 | 5 | 24 |
| 20 ≤ Ф < 80 | TS04 | 1105 | 1035 | 3 | 34 |
Dimension Tolerance and Delivery Form
Note⑤：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) | Tolerance⑤ (mm) | Ovality (mm) | Length (mm. max.) | Straightness (mm/m max.) |
| 15 ≤ Φ < 30 | 0.16 | 0.08 | 3000 | 0.5 |
| 30 ≤ Φ < 50 | 0.20 | 0.10 | 3000 | 0.5 |
| 50 ≤ Φ < 70 | 0.40 | 0.20 | 2500 | 2.0 |
| 70 ≤ Φ < 92 | 1.80 | 0.90 | 2500 | 2.5 |
Other Delivery Forms
Tubes, Profiles, Plates
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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