| Grade : | 34KHN1M ( 34ХН1М ) |
| Substitute: | 38Х2НМ, 34ХН3М, 38Х2Н2МА, 40Х2Н2МА |
| Classification : | Alloy structurall steel |
| Equivalent grades: | Go here |
Chemical composition in % for grade 34KHN1M ( 34ХН1М )
| C | Si | Mn | Ni | S | P | Cr | Mo |
| 0.3 - 0.4 | 0.17 - 0.37 | 0.5 - 0.8 | 1.3 - 1.7 | max 0.035 | max 0.03 | 1.3 - 1.7 | 0.2 - 0.3 |
Temperature of critical points for grade 34KHN1M ( 34ХН1М ).
| Ac1 = 730 , Ac3(Acm) = 780 , Mn = 320 |
Mechanical properties under Т=20oС for grade 34KHN1M ( 34ХН1М )
| Assortment | Dimension | Direct. | sв | sT | d5 | y | KCU | Heat treatment |
| - | mm | - | MPa | MPa | % | % | kJ / m2 | - |
| Forging | 300 - 500 | 570 | 315 | 12 | 30 | 290 | Guenching and drawing |
| Brinell hardness for 34KHN1M ( 34ХН1М ) (normalize) , | HB 10 -1 = 187 - 229 MPa |
Technological properties for grade 34KHN1M ( 34ХН1М )
| Weldability: | limited weldability. |
| Flakes : | predisposed |
| Temper brittleness: | weakly predisposed |
Equivalent steels for grade 34KHN1M ( 34ХН1М )
| Sweden | |
| SS | |
|
Types of delivery of grade 34KHN1M ( 34ХН1М )
| B03 - Metal forming treatment. Forgings |
Specification :
| 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 |
34KHN1M ( 34ХН1М ) - Alloy structurall steel: chemical composition, mechanical and physical properties, hardness
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