BrCr - CuCr sheet, strip, tube
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| BRH | CuCr1Zr | Delivery from the stock, in stock |
Industrial application
Used in welding electrodes, welding machine equipment, and electrical components.
Grade: Bronze ash-free bronze, machined under pressure.
Chemical properties of BrX grade alloy, in percent.
| Designation | Description |
|---|---|
| Cu | 98,5 - 99,6 |
| Cr | 0,4 - 1,2 |
Physical characteristics of BrX 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) |
|---|---|---|---|---|---|---|
| 17 | 1.12 | 20 | 8900 |
Mechanical characteristics of BrC at 20oC
| Rolled products | δ5 (%) | (%) (Np. | Size | σ in (MPa) | sT (MPa) | KCU (kJ/m2) | ψ % |
|---|---|---|---|---|---|---|---|
| soft alloy | 60-70 | 300-450 | |||||
| hard alloy | 7-10 | 700-800 |
Useful information and properties:
The coefficient of friction without lubrication is 0.12
Coefficient of friction with grease is 0.01
Melting point, °C: 995
Alloy hardness: HB 10 -1 = 70 - 90 MPa
Tin-free bronzes do not contain the scarce tin in their composition. 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 can be beryllium, aluminum, manganese,
| 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
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