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Grade : | BrMts5 ( БрМц5 ) |
Classification : | Tin-free pressure-worked bronzes |
Equivalent grades: | Is absent |
Fe | Si | Mn | P | Cu | Pb | Zn | Sn | Impurity |
max 0.35 | max 0.1 | 4.5 - 5.5 | max 0.01 | 93.6 - 95.5 | max 0.03 | max 0.4 | max 0.1 | all 0.9 |
Assortment | Dimension | Direct. | sв | sT | d5 | y | KCU | Heat treatment |
- | mm | - | MPa | MPa | % | % | kJ / m2 | - |
soft | 300-360 | 35-45 | ||||||
hard | 500-600 | 5-6 |
Brinell hardness for BrMts5 ( БрМц5 ) , soft | HB 10 -1 = 70 - 90 MPa |
Brinell hardness for BrMts5 ( БрМц5 ) , hard | HB 10 -1 = 150 - 170 MPa |
Friction coefficient with oil : | 0.013 |
Friction coefficient without oil : | 0.7 |
Melting temperature : | 1047 °C |
Forging temperature : | 750 - 850 °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 | 1.05 | 8600 | 200 | |||
100 | 20.4 |
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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