BrB2 - 2.1447 - CuBe2 strip
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| BrB2 | 2.1447 | CuBe2 | Delivery from the stock, in stock |
Grade: Tin-free, pressure treated bronze with high strength and wear resistance, good antifriction properties, very good deformability in the quenched state.
Industrial applications: for elastic elements and springs.
Chemical properties of BrOF6.5-0.15 grade, in percent.
| Designation | Description |
|---|---|
| Fe | up to 0.15 |
| Si | up to 0.15 |
| Ni | 0,2 - 0,5 |
| Al | up to 0.15 |
| Cu | 96,9 - 98 |
| Pb | up to 0.005 |
| Be | 1,8 - 2,1 |
Useful information and properties:
Tin-free bronzes do not contain in their composition the scarce tin. They can serve not only as a substitute for tin bronzes, tin-free bronzes are often superior to them with their anticorrosive, technological and mechanical properties. Tin-free bronzes are called beryllium, aluminum, manganese,
Melting temperature, °C: 995
The hardness of the alloy: HB 10 -1 = 130 - 150 MPa.
Mechanical characteristics of BrB2 alloy at 20oC
| Rolled product | δ5 (%) | (%), grad. | sT (MPa) | σ in (MPa) | Size | KCU (kJ/m2) | ψ % |
|---|---|---|---|---|---|---|---|
| soft alloy | 40-50 | 400-600 | |||||
| hard alloy | 2-4 | 600-950 |
Physical characteristics of BrB2 alloy
| a 10 6 (1/Grad) | E 10- 5 (MPa) | T (Grad) | l (W/(m-grad)) | R 10 9 (Ohm-m) | C (J/(kg-grad)) | r (kg/m3) |
|---|---|---|---|---|---|---|
| 1.31 | 20 | 84 | 70 | 8200 | ||
| 16.6 | 100 | 419 |
| Description | Designation | Description | Designation |
|---|---|---|---|
| - Tensile strength (tensile strength), in MPa | σ in | - relative slump at cracking, in % | å |
| - elastic limit, in MPa | σ0,05 | - torsional strength limit (ultimate tangential stress), in MPa | Jê |
| - yield strength, in MPa | σ0,2 | - bending strength limit, in MPa | σd |
| - relative elongation after rupture, in % | δ5,δ4,δ10 | - endurance limit at symmetrical bending cyclic load, in MPa | σ-1 |
| - compression (yield strength), in MPa | σcj0,05 and σcj | - torsional symmetrical cyclic load endurance limit, MPa | J-1 |
| - shear displacement, in % | ν | - number of load cycles | n |
| - short-term strength limit, in MPa | s in | - electrical resistivity, in Ohm-m | R and ρ |
| - relative contraction, in % | ψ | - nominal elastic modulus, in GPa | E |
| - impact toughness for specimens with concentrators according to species V and U, in J/cm2 | KCU and KCV | - Test temperature, °C | T |
| - yield strength - permanent deformation (limit of proportionality), in MPa | sT | - thermal conductivity coefficient in W/(m- °С) | l and ë |
| - Brinell hardness | HB | - specific heat capacity in [J/(kg-rad) | C |
| - Vickers hardness | HV | - specific gravity kg/m3 | pn and r |
| - Rockwell hardness, Sc. | HRCe | - coefficient of linear thermal expansion (1/°C) | |
| - HRB Rockwell hardness, Sc. | HRB | - Longitudinal strength limit (MPa) | σtT |
| - Shore hardness | HSD | - modulus of elasticity (torsional shear) GPa |
Delivery
We supply certified bronze rolled products of all grades. The specification includes data on the percentage composition and performance qualities of products. From us it is easy to buy in bulk any semi-finished products for large-scale production. We also cooperate with retail buyers. High level of service and responsiveness of service is the face of our company.
Buy at the best price
At the warehouse of "Elektrovek-steel" we always have the highest quality bronze rolled products at the best price. It is formed taking into account European rates for base metals, without the inclusion of additional costs. We supply certified products of domestic and foreign producers. Cooperation with us has a number of advantages. Our specialists will be happy to provide advice on purchasing any alloys, the correct choice of which will depend on the performance and durability of the equipment. We will help to determine not only the optimum parameters of the product, but also offer the best price.