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Brb2 - 2.1447 - CuBe2 tape

Brb2 - 2.1447 - CuBe2 tape

Properties of a bronze alloy Brb2

Class: bronze without tin pressure treated with a high degree of toughness and wear resistance, excellent anti-friction characteristics, excellent deformability in the hardened state.

Industrial use: for springs, elastic elements.

Chemical properties of alloy Brb2
Cu 96,9 — 98
Pb to 0.005
Be 1,8 — 2,1
Fe to 0.15
Si to 0.15
Ni 0,2 — 0,5
Al to 0.15

The basic qualities

Hardness of alloy: HB 10-1 = 130 — 150 MPa

Melting point: 995°C

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.

Mechanical properties of grade alloy Brb2 at 20°C
Rental δ5 (%) Size KCU (kJ / m2) ψ % Eg. sT (MPa) σв (MPa)
soft alloy 40−50           400−600
hard alloy 2−4           600−950
Physical characteristics grade alloy Brb2
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)
70   8200 84   1.31 20
  419     16.6   100
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   — 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 Brb2 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.