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Braj 9-4 - CuAl10Fe1 sheet, strip, pipe
Features alloy Brazh9−4
Class: bronze without tin, with good mechanical properties, pressure treated, corrosion resistant, good sliding properties.
Industrial use: aviation industry, mechanical engineering.
Chemical composition brand Brazh9−4, in percent.
| Mn | to 0.5 |
|---|---|
| Si | to 0.1 |
| Al | 8 — 10 |
| Fe | 2 — 4 |
| P | 0.01 |
| Pb | 0.01 |
| Sn | to 0.1 |
| Cu | 84,3 — 90 |
| Zn | to 1 |
Main qualities:
The coefficient of friction with lubrication is 0.004
The coefficient of friction without lubrication = 0.18
Hardness of alloy: HB 10-1 = 100 — 120 MPa
Melting point: 1040°C
| The mechanical characteristics of the brand Brazh9−4 at 20°C | |||||||
|---|---|---|---|---|---|---|---|
| Rental | ψ % | Size | KCU (kJ / m2) | δ5 (%) | Eg. | sT (MPa) | σв (MPa) |
| hard alloy | 4−6 | 500−700 | |||||
| soft alloy | 35−45 | 400−500 | |||||
Feature of aluminum bronzes is a significant increase of their mechanical qualities of iron. It grinds grain and provides a delay recrystallization. In order to improve the strength characteristics of aluminum-iron bronze subjected to aging at a temperature of 250−300°C for 2−3 hours after completion of quenching at t° 950 °C. It is used in the production of valve seats, bushings, worms, gears, nuts adjusting screws in mashinostroenii. The Nickel in the alloy composition contributes to the improvement of mechanical properties, heat resistance, corrosion resistance increases, the recrystallization temperature, improves anti-friction properties, stability at low temperatures. Bronze aluminum-iron-Nickel is used for the guide bushings, gears, valves and other parts for critical applications in the aircraft industry. Manganese in the alloy composition contributes to corrosion, technological properties. Bronze aluminum-iron-Nickel well-processed in cold, hot conditions under pressure. They are used in manufacturing, worm screws, bushings, gears, which are operated at temperatures up to 250 °C in marine shipbuilding.
| Physical characteristics grade alloy Brazh9−4 | ||||||
|---|---|---|---|---|---|---|
| C (j/(kg·hail)) | r (kg/m3) | 10 R9(Ω·m) | l (W/(m·deg)) | a 10-6(1/Deg) | E 10-5(MPa) | T (Deg) |
| 423 | 16.2 | 100 | ||||
| 7500 | 120 | 58 | 1.16 | 20 | ||
| Designations: | ||||
|---|---|---|---|---|
| is the relative draught in processe the appearance of the first cracks, in % | å | — the ultimate tensile strength (rupture strength), MPa | σв | |
| — maximum shear stress, the ultimate strength in torsion, MPa | Jê | — the limit of elasticity in MPa | σ0,05 | |
| — tensile strength during bending in MPa | σизг | — yield strength, MPa | σ0,2 | |
| — the endurance limit during the test with a symmetrical cycle of loading in bending, MPa | σ-1 | — relative elongation after rupture, % | δ5,δ4,δ10 | |
| — the endurance limit during testing with a symmetrical load cycle torsion, MPa | J-1 | — yield strength (compression), in MPa | σсж0,05 and σсж | |
| — number of loading cycles | n | — the relative shift in % | ν | |
| — specific email. resistance, Ohm·m | R and ρ | — short-term tensile strength, in MPa | blower SB | |
| is the normal modulus of elasticity, GPA | E | contraction ratio in % | ψ | |
| temperature get the properties, Grad | T | — impact strength installed in the specimens with concentrators in accordance with the type of V and U, in j/cm2 | KCU and KCV | |
| — the heat capacity of the alloy (coefficient of thermal conductivity) in W/(m·°C) | l and ë | — residual deformation — the yield strength (limit of proportionality), in MPa | sT | |
| — specific heat of the alloy (at 20°C), in [j/(kg·deg)] | C | — Brinell hardness number | HB | |
| — density in kg/m3 | pn and r | — hardness according to Vickers | HV | |
| — coefficient of linear thermal expansion (in the temperature range of 20°C), in 1/°C | and | — Rockwell hardness, SHK. With | HRC | |
| — long-term strength, MPa | σtТ | — Rockwell hardness, SHK. In | HRB | |
| — the modulus of elasticity is in the process of shear in torsion, HPa | G | — hardness shore | HSD | |
Buy at best price
The company LLC «AVEK global» bronze brand Brazh9−4 will satisfy any demands. Popular products from this alloy is due to excellent quality products, a wide variety of options and the actual cost. All the products from bronze alloys produced by our company, is produced under the complete technological control at all stages that guarantees the highest quality products. The company «AVEK global» is ready to manufacture custom products non-standard sizes. Manufacturing process capabilities allow us to execute orders according to individual drawings in the absence of the required type of product in standard version.