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Grade : | 20KH13L ( 20Х13Л ) |
Classification : | Casting alloy steel with specific properties |
Equivalent grades: | Go here |
C | Si | Mn | S | P | Cr |
0.16 - 0.25 | 0.2 - 0.8 | 0.3 - 0.8 | max 0.025 | max 0.03 | 12 - 14 |
Assortment | Dimension | Direct. | sв | sT | d5 | y | KCU | Heat treatment |
- | mm | - | MPa | MPa | % | % | kJ / m2 | - |
Casting, GOST 977-88 | to 100 | 589 | 441 | 16 | 40 | 392 |
Weldability: | limited weldability. |
Linear shrinkage : | 2.2 - 2.3 % |
Annealing 940 - 960 ° C, Hardening 1040 - 1060 ° C, Oil or air cooling, Tempering 740 - 760 ° C. Air cooling |
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 | 2.22 | 21 | 7740 | 645 | ||
100 | 2.16 | 10 | 23 | 470 | 695 | |
200 | 2.11 | 10.8 | 24 | 491 | 775 | |
300 | 2.03 | 11.3 | 25 | 512 | 859 | |
400 | 1.95 | 11.7 | 26 | 533 | 931 | |
500 | 1.84 | 12.1 | 27 | 563 | 985 | |
600 | 1.67 | 12.4 | 27 | 596 | 1055 | |
700 | 1.49 | 12.6 | 27 | 643 | 1115 | |
800 | 1.4 | 12.8 | 28 | 680 | 1125 | |
900 | 10.8 | 28 | 693 | 1160 | ||
T | E 10- 5 | a 10 6 | l | r | C | R 10 9 |
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B82 - Steel Castings |
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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