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Characteristics for grade BrB2.5 ( БрБ2.5 )

Grade :	BrB2.5 ( БрБ2.5 )
Classification :	Tin-free pressure-worked bronzes
Equivalent grades:	Is absent

Chemical composition in % for grade BrB2.5 ( БрБ2.5 )

Fe	Si	Ni	Al	Cu	Pb	Be	Impurity
max 0.15	max 0.15	0.2 - 0.5	max 0.15	96.4 - 97.5	max 0.005	2.3 - 2.6	all 0.5

Comment: Cu is a basis; the percentage of Cu is given approximately.

Mechanical properties under Т=20^oС for grade BrB2.5 ( БрБ2.5 )

Assortment	Dimension	Direct.	s_в	s_T	d₅	y	KCU	Heat treatment
-	mm	-	MPa	MPa	%	%	kJ / m²	-
soft			580		25
hard			1350		1-2

Brinell hardness for BrB2.5 ( БрБ2.5 ) , soft	HB 10^-1 = 130 MPa
Brinell hardness for BrB2.5 ( БрБ2.5 ) , hard	HB 10^-1 = 360 MPa

Physical properties for grade BrB2.5 ( БрБ2.5 )

T	E 10^{- 5}	a 10⁶	l	r	C	R 10⁹
Grade	MPa	1/Grade	Watt/(m·Grade)	kg/m³	J/(kg·Grade)	Ohm·m
20	1.33	16.6		8230

Specification :

Mechanical properties :
s_в	- Tensile strength , [MPa]
s_T	- Yield stress, [MPa]
d₅	- Specific elongation at fracture , [ % ]
y	- Reduction of area , [ % ]
KCU	- Impact strength , [ kJ / m²]
HB	- Brinell hardness , [MPa]

Physical properties :
T	- Test temperature , [Grade]
E	- Young modulus , [MPa]
a	- Coefficient of linear expansion (range 20^o - T ) , [1/Grade]
l	- Termal (heat) condition coefficient , [Watt/(m·Grade)]
r	- Density , [kg/m³]
C	- Specific heat ( range 20^o - T ), [J/(kg·Grade)]
R	- Electrical resistance , [Ohm·m]

BrB2.5 ( БрБ2.5 ) - Tin-free pressure-worked bronzes: chemical composition, mechanical and physical properties, hardness
Database of steels and alloys (Marochnik) contains information about chemical composition and properties more then 3000 steels and alloys

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