bedra61760
Aluminum Bronze
Characteristics：
bedra61760 is an aluminum bronze alloy with added manganese and iron, which enhance mechanical strength and inhibit grain growth during hot working. This alloy combines high fatigue strength, excellent wear and abrasion resistance, along with good oxidation and corrosion resistance in seawater and other aggressive environments. It also demonstrates shock load resistance and non-sparking properties.
Typical applications:
bedra61760 is widely used in offshore and marine applications, as well as in the automotive and petrochemical industries, for engineering components such as bolts, nuts, bearing races, bearings, bushings, gears, pump parts, valve guides, valve seats, valve bodies, and marine hardware.
Standardization and composition
| UNS | / |
|---|---|
| EN | CuAl10Fe3Mn2 (CW306G) |
| JIS | / |
| GB | T61760 (QAl10-3-1.5) |
| Cu | balance% |
| Al | 8.0-10% |
| Fe | 2.0-4.0% |
| Mn | 1.0-2.0% |
| P | ≤ 0.01% |
| Zn | ≤ 0.50% |
| Sn | ≤ 0.10% |
| Pb | ≤ 0.03% |
| Si | ≤ 0.10% |
Physical properties①
Note①：The testing temperature is 20℃. Note②：The testing temperature range is 20℃ to 300℃.
| Density (g/cm³) | 7.6 |
|---|---|
| Metling temperature (℃) | 1046 |
| Electrical conductivity (%IACS) | 9.1 |
| Thermal conductivity (W / m x K) | 58.6 |
| Coefficient of thermal expansion② (10-6/K) | 20 |
| Modulus of elasticity (GPa) | 102 |
Fabrication Properties
Note③：C37700 = 100% Note④：C36000 = 100%
| Cold workability | Poor |
| Hot workability | Good |
| Brazing | Fair |
| Resistance welding | Good |
| Forgeability rating③ | 75% |
| Machinability rating④ | 30% |
Mechanical Properties⑤
Note⑤：bedra technical standards
| Temper | Diameter (mm) | Tensile Strength (MPa min.) | Yield Strength (MPa min.) | Elongation (A% min.) | Hardness (HBW min.) |
|---|---|---|---|---|---|
| H04 | 8.0 ≤ Ф ≤ 40 | 630 | / | 15 | 160 |
| M30 | 40 ≤ Ф ≤ 120 | 590 | / | 13 | 130 |
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.) |
| 8.0 ≤ Φ 10 | 0.12 | 0.06 | 3600 | 1.0 |
| 10 ≤ Φ 18 | 0.16 | 0.08 | 3600 | 1.0 |
| 18 ≤ Φ 50 | 0.30 | 0.15 | 4000 | 1.0 |
| 50 ≤ Φ 60 | 0.40 | 0.20 | 4000 | 1.0 |
| 60 ≤ Φ 70 | 0.80 | 0.40 | 4000 | 3.0 |
| 70 ≤ Φ 90 | 1.20 | 0.60 | 3000 | 3.0 |
| 90 ≤ Φ ≤ 120 | 2.00 | 1.00 | 2000 | 5.0 |
Other Delivery Forms
Square rods, Rectangular rods, Profiles
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