Rod, wire, sheet, strip made of CuAl11Fe6Ni6
Equivalent
| Grade | analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| BRAZHN11−6-6 | Buy from stock, view availability |
CuAl11Fe6Ni6 bronze
Industrial usage: antifriction equipment, sliding parts, worm screws, bushings, gears that are exploited at a temperature up to 250 °C.
Grade: tinless, pressure-treated bronze.
Percentage composition according to GOST 493−79
| Identification | Description |
| As | ≤ 0,05 |
| Cu | 74 — 79.5 |
| Pb | ≤ 0,05 |
| Sb | ≤ 0,05 |
| Zn | ≤ 0,6 |
| Sn | ≤ 0,2 |
| Si | ≤ 0,2 |
| Fe | 5 — 6.5 |
| Mn | ≤ 0,5 |
| P | ≤ 0,1 |
| Ni | 5 — 6.5 |
| Al | 10.5 — 11.5 |
Nickel provides increasing of heat resistance, corrosion resistance, recrystallization temperature. It also increases antifriction properties, resistance to low temperatures. Manganese provides increasing of corrosion and technological properties.
Main properties:
Alloy hardness: HB 10 -1 = 250 MPа
Mechanical properties of CuAl11Fe6Ni6 bronze (t° 20°С)
| Range of sizes | δ5 (%) | Size | σv (MPa) | ψ % | KCU kJ/m2 |
| Chill-casting | 2 | 587 | |||
| Sand-mold casting | 2 | 587 |
In order to improve strength characteristics bronze, it is exposed to thermohardening (t° 950 °C) and age-hardening at a temperature of 250−300°С for 2−3 hours.
| Description | Identification | Description | Identification |
| — differential deposit at a process of the first crack appearing, % | å | — ultimate tensile strength (rupture strength), MPa | σv |
| — maximum shear stress, ultimate torsional strength, MPa | Jê | — elastic strength, MPa | σ0,05 |
| — ultimate bending strength, MPa | σ bend | — conventional yield limit, MPa | σ0,2 |
| — fatigue endurance limit during bending test with symmetrical load cycle, MPa | σ-1 | — percentage elongation after rupture, % | δ5,δ4,δ10 |
| — fatigue endurance limit during torsion test with symmetrical load cycle, MPa | J-1 | — yield point (contraction), MPa | σc 0,05 |
| — amount of load cycling | n | — relative shear, % | v |
| — specific electrical resistance, Ohmm | R and ρ | — short ultimate tensile strength, MPa | sv |
| — standard module of elasticity HPa | E | — contraction ratio, % | ψ |
| — properties getting temperature, Degree | T | — impact hardness, which is established on specimens with concentrators in accordance with V and U types, J/cm2 | KCU and KCV |
| — heating capacity of alloy (heat conduction coefficient), V/(m°С) | l | — permanent change of form — yield point (proportionality), MPa | sT |
| — specific heat of alloy (temperature range is 20°С), [J/(kg-deg)] | C | — Brinell hardness | HB |
| — density, kg/m3 | pn and r | — Vicker’s hardness | HV |
| — linear thermal expansion coefficient (in a temperature range of 20°С), 1/°С | a | — Rockwell hardness C | HRC |
| — long-time strength limit, MPa | σtТ | — Rockwell hardness B | HRB |
| — module of elasticity at a process of torsional shear, HPa | G | — Shore hardness | HSD |
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