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Grade : | KhN70VMTYuF ( ХН70ВМТЮФ ) ( ЭИ826 ХН70ВМТЮФ-ВД ЭИ826-ВД ) |
Classification : | Hidh-temperature or heat-resistant alloy |
Equivalent grades: | Is absent |
Fe | C | Si | Mn | Ni | S | P | Cr | Ce | Mo | W | V | Ti | Al | B |
max 5 | max 0.12 | max 0.6 | max 0.5 | 60.621 - 75.2 | max 0.009 | max 0.015 | 13 - 16 | max 0.02 | 2.5 - 4 | 5 - 7 | 0.2 - 1 | 1.7 - 2.2 | 2.4 - 2.9 | max 0.015 |
Assortment | Dimension | Direct. | sв | sT | d5 | y | KCU | Heat treatment |
- | mm | - | MPa | MPa | % | % | kJ / m2 | - |
Bar, GOST 23705-79 | longitudinal | 1030 | 705 | 10 | 12 | 196 |
Brinell hardness for KhN70VMTYuF ( ХН70ВМТЮФ ) (quenching) , GOST 23705 | HB 10 -1 = 299 - 341 MPa |
Weldability: | hard weldability. |
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 | 2 | 8.8 | 8470 | |||
100 | 10.4 | 10.5 | ||||
200 | 11.7 | 12.6 | ||||
300 | 12.4 | 14.2 | ||||
400 | 12.9 | 16.3 | ||||
500 | 1.7 | 13.2 | 18.4 | |||
600 | 1.65 | 13.6 | 20.5 | |||
700 | 1.55 | 14 | 22.6 | |||
800 | 1.45 | 14.5 | 25.1 | |||
900 | 1.3 | 15 | 28 | |||
T | E 10- 5 | a 10 6 | l | r | C | R 10 9 |
В32 - Graded and shaped rolling |
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] |
Weldability : | |
without limitations | - welding is done without heating and subsequent heat treeting |
limited weldability | - welding is possible under heating up to 100-120 grade and subsequent heat treeting |
hard weldability | - obtaining the quality welding needs the additional operations:heating up to 200-300 grade; the heat treeting ia annealing |
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