Pipe, rod, wire made of CuCr, CuCr1
|Grade||analogue||W. Nr.||Aisi Uns||En||Order|
|БрХ1||Delivery from the stock, in stock|
|БРХ||CuCr1Zr||Delivery from the stock, in stock|
Grade: tinless, pressure-treated bronze.
Industrial usage: electrodes for welding, equipment of welding machines.
Percentage composition of CuCr1 grade
|Cr||0.4 — 1.2|
|Cu||98.5 — 99.6|
Mechanical characteristics of CuCr1 at a temperature of 20 °C.
|σv (MPa)||Size||ψ %|
Physical characteristics of CuCr1
R 10 9(Ohm-m)
a 10 -6 (1/Degree)
E 1 -5 (MPa)
CuCr, CuCr1 alloys relate to tinless bronze alloys. They do not contain scarce tin in their composition. These alloys are superior to tin bronze alloys by their mechanical, anticorrosion, technological properties. Tinless bronzes can be not only beryllium but manganese or aluminium as well, depending on the main alloying component. Chromium coppers are manufactured in accordance with GOST 18175−78. This standard is applied to pressure-treated tinless bronzes, which intended for a manufacture of semi-fabricates.
Coefficient of friction with lubricant = 0.01
Coefficient of friction without lubricant =0.12
Alloy hardness: HB 10 -1 = 70 — 90 MPа
Point of melting = 995°С
|— 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 and σc|
|— amount of load cycling||n||— relative shear, %||v|
|— specific electrical resistance, Ohm-m||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|
|— lineal 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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