bedra67300
Manganese Brass
Characteristics:
This alloy is a high strength leaded silicon manganese brass with typically good bearing qualities. The addition of Si and Mn improves the strength and wear resistance of the alloy, and the addition of Pb enhances its wear resistance and machinability. This alloy combines high wear resistance, high bearing strength, high machinability with excellent forgeability.
Typical applications:
It is well suited for valve seats, clutch bearings,shaft bushings, sleeve bearings, thrust bearings.pump parts, drive shafts, bearing pins, wear plates,gears and cams.
Standardization and composition
| UNS | C67300 |
|---|---|
| EN | / |
| JIS | / |
| GB | C67300 (HMn60-3-1.7-1) |
| Cu | 58.0-63.0% |
| Mn | 2.0-3.5% |
| Si | 0.5-1.5% |
| Pb | 0.4-3.0% |
| 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 (℃) | 874 |
| 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 |
Fabrication Properties
Note③：C37700 = 100% Note④：C36000 = 100%
| Cold workability | Poor |
| Hot workability | Excellent |
| Brazing | Good |
| Resistance welding | Not Recommended |
| Machinability ③ | 50% |
| Forgeability ④ | 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 ＜ 50 | 448 | 276 | 18 | 110 |
| HR04 | 6.0 ≤ Φ ＜ 50 | 480 | 340 | 15 | 130 |
| 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. When tolerances are specified as plus and minus (±), half the values given.
| 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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