bedra 23605
Manganese Brass
Characteristics:
It is a versatile copper-based alloy with strong mechanical and corrosion-resistant properties, excellent hot forgeability, and moderate machinability, commonly used in industrial components subjected to wear and corrosive conditions.
Typical applications:
It is widely used in valve guides, floating and thrust bearings in the automotive industry, as well as oil distributors and bushings in the hydraulic industry.
Standardization and composition
| UNS | C67400 |
|---|---|
| EN | CuZn37Mn3Al2PbSi (CW713R) |
| GB | HMn57-2-1.7-0.5 |
| Cu | 57-59% |
| Mn | 1.5-3.0% |
| Si | 0.3-1.3% |
| Al | 1.3-2.3% |
| Pb | ≤ 0.1% |
| Fe | ≤ 1.0% |
| Sn | ≤ 0.4% |
| Zn | balance |
Physical properties①
Note①：The testing temperature is 20℃. Note②：The testing temperature range is 20℃ to 300℃.
| Density (g/cm³) | 8.08 |
|---|---|
| Metling temperature (℃) | 885 |
| Electrical conductivity (%IACS) | 23 |
| Thermal conductivity (W / m x K) | 100 |
| Coefficient of thermal expansion② (10-6/K) | 19.1 |
| Modulus of elasticity (GPa) | 110 |
Fabrication Properties
Note③：C37700 = 100% Note④：C36000 = 100%
| Cold workability | Poor |
| Hot workability | Excellent |
| Brazing | Good |
| Resistance welding | Good |
| Forgeability rating③ | 100% |
| Machinability rating④ | 30% |
Mechanical Properties⑤
Note⑤：bedra technical standards
| Diameter (mm) | Temper | Tensile Strength (MPa min.) | Yield Strength (MPa min.) | Elongation (% min.) | Hardness (HB min.) |
|---|---|---|---|---|---|
| 5.0 ≤ Ф ≤ 80 | R540 | 540 | 280 | 15 | 145 |
| 5.0 ≤ Ф ≤ 120 | R590 | 590 | 370 | 10 | 160 |
Dimension Tolerance and Delivery Form
Note⑥：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) | Tolerance⑥ (mm) | Ovality (mm) | Length (mm. max.) | Straightness (mm/m max.) |
| 5.0 ≤ Φ < 10 | 0.06 | 0.030 | 3600 | 0.3 |
| 10 ≤ Φ < 18 | 0.07 | 0.035 | 3600 | 0.3 |
| 18 ≤ Φ < 30 | 0.08 | 0.040 | 4000 | 0.5 |
| 30 ≤ Φ < 50 | 0.16 | 0.080 | 4000 | 0.5 |
| 50 ≤ Φ < 60 | 0.80 | 0.400 | 4000 | 1.0 |
| 60 ≤ Φ < 80 | 1.60 | 0.800 | 3000 | 1.0 |
| 80 ≤ Φ < 120 | 2.00 | 1.00 | 2500 | 5.0 |
Other Delivery Forms
Tubes, Profiles
Further product information
PDF Datasheet | EN PDF Datasheet | VI PDF Datasheet | ZH
Please contact us
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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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