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Brkh - CuCr sheet, strip, pipe

Brkh - CuCr sheet, strip, pipe

The use of bronze alloy Brkh

Industrial use: electric parts, electrodes for welding equipment and welding machines.

Class: bronze without tin pressure treated

Chemical composition of alloy grades Brkh
Cr 0,4 — 1,2
Cu 98,5 — 99,6
The mechanical characteristics of the brand Brkh at 20°C
Rental δ5 (%) sT (MPa) KCU (kJ / m2) σв (MPa) Eg. Size ψ %
soft alloy 60−70     300−450      
hard alloy 7−10     700−800      
Physical characteristics grade alloy Brkh
10 R9(Ω·m) C (j/(kg·hail)) r (kg/m3) l (W/(m·deg)) a 10-6(1/Deg) E 10-5(MPa) T (Deg)
    8900   17 1.12 20

The basic qualities

Bronze without tin in its composition does not contain scarce tin. They can be substitutes for tin bronzes, as their mechanical, corrosion and technological properties of bronze without tin, they are often superior. Without tin bronze can be not only beryllium but of the manganese, aluminum, depending on the main alloying component. Bronze beryllium are produced in accordance with GOST 18175−78. This standard applies to bronze without tin, which are processed under pressure and designed for the production of semi-finished products.

The coefficient of friction with lubrication is 0.01

The coefficient of friction without lubrication = 0.12

Hardness of alloy: HB 10-1 = 70 — 90 MPa

Melting point: 995°C

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   — 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 (temperature range 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 Brkh 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.