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Grade : | KhN75MBTYu ( ХН75МБТЮ ) ( ЭИ602 ) |
Classification : | Hidh-temperature or heat-resistant alloy |
Equivalent grades: | Is absent |
Fe | C | Si | Mn | Ni | S | P | Cr | Mo | Nb | Ti | Al |
max 3 | max 0.1 | max 0.8 | max 0.4 | 68.568 - 77.6 | max 0.012 | max 0.02 | 19 - 22 | 1.8 - 2.3 | 0.9 - 1.3 | 0.35 - 0.75 | 0.35 - 0.75 |
Assortment | Dimension | Direct. | sв | sT | d5 | y | KCU | Heat treatment |
- | mm | - | MPa | MPa | % | % | kJ / m2 | - |
Sheet, GOST 24982-81 | 900-930 | 40 | Guenching 1050 - 1080oC, | |||||
Casting, GOST 7769-82 | 860 | 400 | 43 | 37 | Guenching 1050 - 1080oC, air, |
Weldability: | without limitations. |
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 | 1.9 | 8300 | ||||
100 | 12.4 | 13.45 | ||||
200 | 13.4 | 15.3 | ||||
300 | 14.2 | 16.7 | ||||
400 | 1.65 | 15 | 18.5 | |||
500 | 1.63 | 15.8 | 20.2 | |||
600 | 1.5 | 16.5 | 22.3 | |||
700 | 1.37 | 18.1 | 24.4 | |||
T | E 10- 5 | a 10 6 | l | r | C | R 10 9 |
B23 - Sheets and Strips |
B33 - Sheets and Strips |
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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