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Grade : | 18KH2N4VА ( 18Х2Н4ВА ) |
Classification : | Alloy structurall steel |
Equivalent grades: | Go here |
C | Si | Mn | Ni | S | P | Cr | W | Cu |
0.14 - 0.2 | 0.17 - 0.37 | 0.25 - 0.55 | 4 - 4.4 | max 0.025 | max 0.025 | 1.35 - 1.65 | 0.8 - 1.2 | max 0.3 |
Assortment | Dimension | Direct. | sв | sT | d5 | y | KCU | Heat treatment |
- | mm | - | MPa | MPa | % | % | kJ / m2 | - |
Bar, GOST 4543-71 | Ø 15 | 1050 | 800 | 12 | 50 | Guenching 950oC, oil, Drawing 550oC, air, | ||
Bar | Ø 15 | 1030-1130 | 785-835 | 11-12 | 50 | 980-1175 | Guenching and drawing |
Brinell hardness for 18KH2N4VА ( 18Х2Н4ВА ) (annealing) , GOST 4543-71 | HB 10 -1 = 269 MPa |
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 | 7950 | ||||
100 | 11.7 | 36 | 7930 | |||
200 | 12.2 | 36 | 7900 | |||
300 | 12.7 | 35 | 7860 | |||
400 | 13.1 | 35 | 7830 | |||
500 | 13.5 | 34 | 7800 | |||
600 | 13.9 | 33 | 7760 | |||
T | E 10- 5 | a 10 6 | l | r | C | R 10 9 |
Germany | Japan | France | England | Spain | ||||||
DIN,WNr | JIS | AFNOR | BS | UNE | ||||||
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B03 - Metal forming treatment. Forgings |
В22 - Graded and shaped rolling |
B23 - Sheets and Strips |
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] |
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