Brof 6.5-0.15 tape, strip
|Mark||Analogue||W. Nr.||Aisi Uns||En||Order|
|БрОФ||Delivery from the stock, in stock|
|БРОФ6.5-0.15||Delivery from the stock, in stock|
Industrial application: bushings, bearings, springs
Grade: Tin bronze, processed under pressure.
Properties of tin bronzes.
Tin bronze Brof6.5−0.15 have high anti-friction properties, they are frost-resistant, insensitive to overheating, non-magnetic, have low volumetric shrinkage (about 0.8%), which are successfully used in art casting.
Their main disadvantage is the formation in the casting pores, which leads them to low integrity. Tin bronze lagerbuchse Nickel, lead, zinc, phosphorus.
In the process of fusing copper and tin formed solid solutions strongly prone to phase separation over a large temperature interval of crystallization. Alloys with tin content greater than 5% due to segregation have in its structure eutectoid component e (a+d), consisting of hard and soft phases.
The structure of this type is favorable for parts bearings: solid particles create durability, the soft phase provides an excellent pererabatyvaemogo, therefore, tin bronze are excellent antifriction materials.
Useful information and properties:
Melting point, °C: 995
Hardness of alloy: HB 10 -1 = 70 — 90 MPa
The coefficient of friction without lubrication is 0.12
The coefficient of friction with lubrication is 0.01
Chemical properties of alloy grade Brof6.5−0.15, percent.
|Cu||92,65 — 93,9|
|P||0,1 — 0,25|
|Sn||6 — 7|
Mechanical characteristics Brof6.5−0.15 at a temperature of 20oC
|Rental||δ5 (%)||Eg.||Size||σв (MPa)||sT (MPa)||KCU (kJ / m2)||ψ %|
Physical characteristics of the alloy grade Brof6.5−0.15
|l (W/(m·deg))||10 R 9 (Ω·m)||C (j/(kg·hail))||a 10 6 (1/Deg)||10 E — 5 (MPa)||T (Deg)||r (kg/m3)|
|— temporary tear resistance (strength limit tensile), MPa||σin||is the relative draught while cracking, %||å|
|— the limit of elasticity in MPa||σ0,05||— strength torsional limit (limiting shear stress), in MPa||Jê|
|— the limits of yield strength, in MPa||σ0,2||— strength limit in bending, MPa||σизг|
|— relative elongation after rupture, %||δ5,δ4,δ10||— the fatigue limit under symmetric cyclic loading in bending, MPa||σ-1|
|compression (yield strength) in MPa||σсж0,05 and σсж||— the fatigue limit under symmetric cyclic loading, torsion, MPa||J-1|
|— the relative shift in %||ν||— the number of load cycles||n|
|— short-term strength limit, MPa||blower SB||— specific electrical resistance, Ohm·m||R and ρ|
|contraction ratio in %||ψ||— the nominal modulus of elasticity, GPA||E|
|— impact strength for specimens with concentrators in accordance with the type V and U, in j/cm2||KCU and KCV||— testing temperature, °C||T|
|— yield point, permanent deformation (limit of proportionality), in MPa||sT||— coefficient of thermal conductivity, W/(m·°C)||l and ë|
|— hardness according to Brinell||HB||— specific heat capacity [j/(kg·deg)]||C|
|— hardness according to Vickers||HV||— specific gravity kg/m3||pn and r|
|hardness according to Rockwell, SHK. With||HRC||— coefficient of linear thermal expansion (1/°C)|
|hardness according to Rockwell, SHK. In||HRB||— border long-term strength (MPa)||σtТ|
|hardness according to shore||HSD||— modulus of elasticity (shear, torsional) HPa|
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