BrOF 6.5-0.15 band, strip
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| BroF | Delivery from the stock, in stock | ||||
| BROF6.5-0.15 | Delivery from the stock, in stock |
Industrial applications: for bushings, bearing shells, springs
Grade: Pressurized tin bronze.
Properties of tin bronzes.
BrOF6.5-0.15 tin bronzes have high antifriction properties, they are frost-resistant, insensitive to overheating, non-magnetic, have low volume shrinkage (about 0.8%), thus successfully used in artistic casting.
Their main disadvantage is the formation of pores in the castings, which leads to their low tightness. Tin bronzes are alloyed with nickel, lead, zinc and phosphorus.
In the process of alloying copper and tin solid solutions are formed that are strongly prone to liquation due to the large temperature interval of crystallization. Alloys with tin content over 5% due to liquation have E (a+d) eutectoid component in their structure consisting of hard and soft phases.
The structure of this type is favorable for sliding bearing parts: hard particles create wear resistance, the soft phase provides excellent run-in properties and therefore tin bronzes are excellent anti-friction materials.
Useful information and properties:
Melting point, °C: 995
Alloy hardness: HB 10 -1 = 70 - 90 MPa
Coefficient of friction without lubrication 0.12
Coefficient of friction with grease is 0.01
Chemical properties of the alloy BrOF6.5-0.15, in percent.
| Designation | Description |
|---|---|
| Si | up to 0.002 |
| Fe | up to 0.05 |
| Cu | 92,65 - 93,9 |
| Al | up to 0.002 |
| Pb | up to 0.02 |
| Bi | up to 0.002 |
| Sb | up to 0.002 |
| P | 0,1 - 0,25 |
| Sn | 6 - 7 |
Mechanical characteristics of BrOF6.5-0.15 at 20oC
| Rolled product | δ5 (%) | (%) Original: BrOF6-0.5 - 0.15 Rolled material δ5 (%) (Np. | Size | σ in (MPa) | sT (MPa) | KCU (kJ/m2) | ψ % |
|---|---|---|---|---|---|---|---|
| soft alloy | 60-70 | 300-450 | |||||
| hard alloy | 7-10 | 700-800 |
Physical characteristics of BrOF6.5-0.15 alloy
| l (W/(m-grad)) | R 10 9 (Ohm-m) | C (J/(kg-grad)) | a 10 6 (1/Grad) | E 10 5 (MPa) | T (degree) | r (kg/m3) |
|---|---|---|---|---|---|---|
| 71.4 | 160 | 1.12 | 20 | 8800 | ||
| 17.1 | 100 |
| 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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