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Grade : | VCH80 ( ВЧ80 ) |
Classification : | Cast iron with spheroidal graphite |
Equivalent grades: | Go here |
C | Si | Mn | Ni | S | P | Cr | Cu |
3.2 - 3.6 | 2.6 - 2.9 | 0.4 - 0.7 | max 0.6 | max 0.01 | max 0.1 | max 0.15 | max 0.6 |
Assortment | Dimension | Direct. | sв | sT | d5 | y | KCU | Heat treatment |
- | mm | - | MPa | MPa | % | % | kJ / m2 | - |
Casting, GOST 7293-85 | 800 | 480 | 2 |
Brinell hardness for VCH80 ( ВЧ80 ) , GOST 7293-85 | HB 10 -1 = 248 - 351 MPa |
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В81 - Castings of cast iron (gray and malleable cast iron) |
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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