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Grade : | BrKN1-3 ( БрКН1-3 ) |
Classification : | Tin-free pressure-worked bronzes |
Equivalent grades: | Go here |
Fe | Si | Mn | Ni | Al | Cu | Pb | Zn | Sn | Impurity |
max 0.1 | 0.6 - 1.1 | 0.1 - 0.4 | 2.4 - 3.4 | max 0.02 | 94.7 - 96.9 | max 0.15 | max 0.1 | max 0.1 | all 0.4 |
Assortment | Dimension | Direct. | sв | sT | d5 | y | KCU | Heat treatment |
- | mm | - | MPa | MPa | % | % | kJ / m2 | - |
Bar, GOST 1628-78 | 490 | 10 | ||||||
soft | 400-450 | 25-30 | ||||||
hard | 500-600 | 6-8 |
Brinell hardness for BrKN1-3 ( БрКН1-3 ) , soft | HB 10 -1 = 80 - 100 MPa |
Brinell hardness for BrKN1-3 ( БрКН1-3 ) , hard | HB 10 -1 = 150 - 200 MPa |
Friction coefficient with oil : | 0.017 |
Friction coefficient without oil : | 0.45 |
Melting temperature : | 1084 °C |
Forging temperature : | 800 - 910 °C |
T | E 10- 5 | a 10 6 | l | r | C | R 10 9 |
Grade | MPa | 1/Grade | Watt/(m·Grade) | kg/m3 | J/(kg·Grade) | Ohm·m |
20 | 1.4 | 8800 | 83 | |||
100 | 18 |
Germany | ||
DIN,WNr | ||
|
B55 - Bars |
Mechanical properties : | |
sв | - Tensile strength , [MPa] |
sT | - 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 20o - T ) , [1/Grade] |
l | - Termal (heat) condition coefficient , [Watt/(m·Grade)] |
r | - Density , [kg/m3] |
C | - Specific heat ( range 20o - T ), [J/(kg·Grade)] |
R | - Electrical resistance , [Ohm·m] |
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