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Grade : | 40KH13 ( 40Х13 ) ( 4Х13 ) |
Substitute: | 30Х13 |
Classification : | Corrosion-resistant high-temperature steel |
Equivalent grades: | Go here |
C | Si | Mn | Ni | S | P | Cr |
0.35 - 0.44 | max 0.6 | max 0.6 | max 0.6 | max 0.025 | max 0.03 | 12 - 14 |
Ac1 = 800 , Ar1 = 780 |
Assortment | Dimension | Direct. | sв | sT | d5 | y | KCU | Heat treatment |
- | mm | - | MPa | MPa | % | % | kJ / m2 | - |
Sheet, GOST 5582-75 | 550 | 15 | Annealing 740 - 800oC, | |||||
Bar, GOST 18907-73 | 590-810 | 10 | ||||||
Wire, GOST 18143-72 | 640-880 | 10-14 |
Brinell hardness for 40KH13 ( 40Х13 ) (quenching, tempering) , | HB 10 -1 = 460 - 550 MPa |
Brinell hardness for 40KH13 ( 40Х13 ) (annealing) , Bar GOST 5949-75 | HB 10 -1 = 143 - 229 MPa |
Weldability: | is not used. |
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 | 2.18 | 25 | 7650 | 461 | 590 | |
100 | 2.14 | 10.8 | 26 | 7630 | 482 | 650 |
200 | 2.06 | 11.9 | 27.2 | 7600 | 523 | 710 |
300 | 1.98 | 12.3 | 28.3 | 7570 | 565 | 790 |
400 | 1.88 | 13 | 29.1 | 7540 | 607 | 860 |
500 | 1.76 | 13.6 | 29.1 | 7510 | 674 | 940 |
600 | 1.63 | 13.5 | 29.1 | 7480 | 775 | 1000 |
700 | 1.48 | 13.8 | 28.3 | 7450 | 988 | 1120 |
800 | 1.4 | 14.6 | 27.9 | 7420 | 825 | 1180 |
900 | 28.5 | 691 | 1160 | |||
T | E 10- 5 | a 10 6 | l | r | C | R 10 9 |
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В05 - Welding and cutting of metals., Soldering, riveting |
В22 - Graded and shaped rolling |
B23 - Sheets and Strips |
В32 - Graded and shaped rolling |
B33 - Sheets and Strips |
B73 - Steel Alloy Wire |
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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