bedra66800
Manganese Brass
Characteristics:
The alloy is a Cu-Zn-Mn series copper-based multi-element (a + B) two-phase alloy. The addition of Siand Mn improves the strength and wear resistance ofthe alloy, and the addition of Pb enhances its wear resistance and machinability. This alloy combines high strength with high wear resistance.
Typical applications:
It is applied for hydraulic components such as sliding shoes, sliding blocks, return disc stops and regulating valves seat.
Standardization and composition
| UNS | C66800 |
|---|---|
| EN | / |
| JIS | / |
| GB | T67212 (HMn61-3-1) |
| Cu | 60-63% |
| Mn | 2.0-3.5% |
| Si | 0.5-1.5% |
| Pb | ≤0.5% |
| Zn | Balance% |
Physical properties①
Note①：The testing temperature is 20℃. Note②：The testing temperature range is 20℃ to 300℃.
| Density(g/cm³) | 8.3 |
|---|---|
| Melting temperature(℃) | 874 |
| Electrical conductivity(%IACS) | 22 |
| Thermal conductivity(W/(m·K)) | 95 |
| Coefficient of thermal expansion②(10⁻⁶/K) | 19.1 |
| Modulus of elasticity(GPa) | 117 |
Fabrication Properties
Note③：C36000 = 100% Note④：C37700 = 100%
| Cold workability | Poor |
| Hot workability | Excellent |
| Brazing | Good |
| Resistance welding | Not Recommended |
| Machinability③ | 30% |
| Forgeability④ | 100% |
Mechanical Properties⑤
Note⑤：bedra technical Standard
| Temper | Diameter(mm) | Tensile Strength(MPa min.) | Yield Strength(MPa min.) | Elongation(A% min.) | Hardness(HB min.) |
|---|---|---|---|---|---|
| HR02 | 6.0 ≤ Φ ＜ 15 | 485 | 345 | 15 | 120 |
| HR02 | 15 ≤ Φ ＜ 50 | 440 | 320 | 15 | 110 |
| M30 | 50 ≤ Φ ＜ 120 | 380 | 172 | 20 | 95 |
Dimension Tolerance and Delivery Forms
Note⑥: The tolerances listed in the table are specified as all plus or all minus. the values given When tolerances are specified as plus and minus (+), half
| Straight bar | ||||
| Diameter (mm) | Tolerance⑥(mm) | Ovality (mm max.) | Length (mm max.) | Straightness (mm/m max.) |
| 6.0 ≤ Φ ＜ 10 | 0.06 | 0.03 | 3600 | 0.3 |
| 10 ≤ Φ ＜ 18 | 0.07 | 0.03 | 3600 | 0.3 |
| 18 ≤ Φ ＜ 30 | 0.08 | 0.04 | 4000 | 0.5 |
| 30 ≤ Φ ＜ 50 | 0.16 | 0.08 | 4000 | 0.5 |
| 50 ≤ Φ ＜ 60 | 0.80 | 0.40 | 4000 | 1.0 |
| 60 ≤ Φ ＜ 80 | 1.6 | 0.80 | 3000 | 1.0 |
| 80 ≤ Φ ＜ 120 | 2.0 | 1.0 | 2500 | 5.0 |
Other Delivery Forms
Tubes, Profiles
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
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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