bedra 67300
Manganese Brass
Characteristics:
It is a two-phase (α + β) alloy, the addition of silicon and manganese enhances the strength and wear resistance of the alloy, while the addition of lead further improves its wear resistance and machinability, resulting in a copper alloy with high strength and excellent wear resistance.
Typical applications:
It is used in bushings, main plates, sub-plates, bearings, and shafts for the hydraulic industry, as well as in wear-resistant components such as sleeves and turbines.
Standardization and composition
| UNS | C67300 |
|---|---|
| GB | HMn60-3-1.7-1 |
| Cu | 58-63% |
| Mn | 2.0-3.5% |
| Pb | 0.4-3.0% |
| Si | 0.5-1.5% |
| Al | ≤ 0.25% |
| Sn | ≤ 0.3% |
| Fe | ≤ 0.5% |
| Ni | ≤ 0.25% |
| Zn | balance |
Physical properties①
Note①：The testing temperature is 20℃. Note②：The testing temperature range is 20℃ to 300℃.
| Density (g/cm³) | 8.3 |
|---|---|
| Metling temperature (℃) | 873.9 |
| Electrical conductivity (%IACS) | 22 |
| Thermal conductivity (W / m x K) | 95 |
| Coefficient of linear mean expansion② (10-6/K) | 19.1 |
| Modulus of elasticity (GPa) | 117.2 |
Fabrication Properties
Note③：C37700 = 100% Note④：C36000 = 100%
| Cold workability | Fair |
| Hot workability | Excellent |
| Brazing | Good |
| Resistance welding | Not recommended |
| Forgeability rating③ | 100% |
| Machinability rating④ | 70% |
Mechanical Properties
| Diameter (mm) | Temper | Tensile Strength (MPa min.) | Yield Strength (MPa min.) | Elongation (A% min.) | Hardness (HB min.) |
|---|---|---|---|---|---|
| Ф ≤ 25 | H02 | 448 | 275 | 12 | 70 |
| 25 < Ф ≤ 75 | H02 | 399 | 241 | 15 | 70 |
| 75 < Ф ≤ 120 | H02 | 379 | 206 | 18 | 65 |
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.) |
| 6.0 ≤ Φ < 10 | 0.06 | 0.03 | 4000 | 0.3 |
| 10 ≤ Φ < 18 | 0.07 | 0.03 | 4000 | 0.3 |
| 18 ≤ Φ < 30 | 0.08 | 0.04 | 4000 | 0.5 |
| 30 ≤ Φ < 50 | 0.16 | 0.08 | 4000 | 0.5 |
| 5 ≤ Φ < 60 | 0.80 | 0.04 | 4000 | 1.0 |
| 60 ≤ Φ < 80 | 1.60 | 0.08 | 3000 | 1.0 |
| 80 ≤ Φ < 120 | 2.00 | 1.00 | 2500 | 5.0 |
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
Close
English 
Deutsch