BrOF 6.5-0.15 band, strip

International Equivalent

Mark	Analogue	W. Nr.	Aisi Uns	En	Order
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
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 %
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)
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
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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