BrAJ 9-4 - CuAl10Fe1 sheet, strip, tube
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| BrAZh9-4 | CuAl10Fe1 | Delivery from the stock, in stock |
Class: tin-free bronze, pressure-treated with high mechanical properties, good antifriction properties, corrosion-resistant.
Industrial application: aircraft industry, machine building.
Chemical properties of BrAZh9-4 grade alloy, in percent.
| Designation | Description |
|---|---|
| Si | up to 0.1 |
| Fe | 2 - 4 |
| Mn | up to 0.5 |
| Al | 8 - 10 |
| P | up to 0.01 |
| Cu | 84,3 - 90 |
| Zn | up to 1 |
| Pb | up to 0.01 |
| Sn | up to 0.1 |
Useful information and properties:
Melting point, °C: 1040
Hardness of the alloy: HB 10 -1 = 100 - 120 MPa
The coefficient of friction without lubrication is 0.18
Coefficient of friction with grease is 0.004
Mechanical characteristics of BrAJ9-4 alloy at 20oC
| Rolled product | δ5 (%) | (%) - grad. | sT (MPa) | σ in (MPa) | Size | KCU (kJ/m2) | ψ % |
|---|---|---|---|---|---|---|---|
| hard alloy | 4-6 | 500-700 | |||||
| soft alloy | 35-45 | 400-500 |
Features of aluminum bronzes
A peculiarity of aluminum bronzes is that iron significantly increases their mechanical characteristics by refining the grain, which provides delayed recrystallization. To improve the strength properties aluminum-iron bronze is subjected to aging at 250-300 ° C two to three hours after quenching at t° 950 ° C. It is used in the production of worms, gears, bushings, screw nuts, valve seats, usually in the aviation industry.
Nickel contributes to mechanical properties, heat resistance, increases corrosion resistance and recrystallization temperature of aluminum bronzes, low-temperature stability and antifriction properties. Aluminum-iron-nickel bronzes are used for valve guides, bushings, gears and other critical parts, usually in the aviation industry.
Manganese enhances technological and corrosion properties of bronzes. Aluminum-iron-nickel bronzes are perfectly machined under pressure in cold and hot condition. They are used for production of gears, worm screws, bushings, and in marine construction - for parts operating at temperatures up to 250 °C.
Physical characteristics of BrAZh9-4 grade alloy
| a 10 6 (1/Grad) | E 10- 5 (MPa) | T (Grad) | l (W/(m-grad)) | C (J/(kg-grad)) | r (kg/m3) | R 10 9 (Ohm-m) |
|---|---|---|---|---|---|---|
| 16.2 | 100 | 423 | ||||
| 1.16 | 20 | 58 | 7500 | 120 |
| Description | Designation | Description | Designation |
|---|---|---|---|
| - Tensile strength (tensile strength), in MPa | σ in | - relative slump at cracking, in % | å |
| - elastic limit, in MPa | σ0,05 | - torsional strength limit (ultimate tangential stress), in MPa | Jê |
| - yield strength, in MPa | σ0,2 | - bending strength limit, in MPa | σd |
| - relative elongation after rupture, in % | δ5,δ4,δ10 | - endurance limit at symmetrical bending cyclic load, in MPa | σ-1 |
| - compression (yield strength), in MPa | σcj0,05 and σcj | - torsional symmetrical cyclic load endurance limit, MPa | J-1 |
| - shear displacement, in % | ν | - number of load cycles | n |
| - short-term strength limit, in MPa | s in | - electrical resistivity, in Ohm-m | R and ρ |
| - relative contraction, in % | ψ | - nominal elastic modulus, in GPa | E |
| - impact toughness for specimens with concentrators according to species V and U, in J/cm2 | KCU and KCV | - Test temperature, °C | T |
| - yield strength - permanent deformation (limit of proportionality), in MPa | sT | - thermal conductivity coefficient, in W/(m- °С) | l and ë |
| - Brinell hardness | HB | - specific heat capacity in [J/(kg-rad) | C |
| - Vickers hardness | HV | - specific gravity kg/m3 | pn and r |
| - Rockwell hardness, Sc. | HRCe | - coefficient of linear thermal expansion (1/°C) | |
| - HRB Rockwell hardness, Sc. | HRB | - Longitudinal strength limit (MPa) | σtT |
| - Shore hardness | HSD | - modulus of elasticity (torsional shear) GPa |
Supply
We supply certified rolled bronze at the best price. It is formed taking into account the rates on the London Non-Ferrous Metals Exchange without the inclusion of additional costs. From us it's easy to buy in bulk any semi-finished products for large-scale productions. We provide favorable conditions for retail buyers. Our company is distinguished by a high level of service and responsiveness of service.
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Rolled bronze БрОЦС3-12-5 from the company Evek GmbH meets domestic and international quality standards. We supply non-ferrous rolled steel standard and custom sizes in the shortest possible time. All products of our company, produced under the strict control of the entire production chain, which guarantees the highest quality. We manufacture products of non-standard parameters. Technological capabilities of production allow for individual orders in the absence of a necessary type of product in the basic version. We practice discounted discounts. Delivery - as soon as possible.