Rod, wire, sheet, strip made of CuAl11Fe6Ni6
|Grade||analogue||W. Nr.||Aisi Uns||En||Order|
|БрАЖН11−6-6||Delivery from the stock, in stock|
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
|Cu||74 — 79.5|
|Fe||5 — 6.5|
|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.
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|
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.
|— 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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