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| Application: | Structural Steel Bar,Gear,mold Steel,Die Steel Bar | Grade: | 20CrMnTiHCS/20CrMnTiHLD Price Iron Forged Steel Round Bar,42CrMo |
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| Delivery Condition: | Hot Forged +Rough Machined (black Surface,Finish Machining,forged +Rough Machined (black Surface After Q/T)+ Turned (optional),Hot Forged +A/N/QT | Surface Treatment: | Customized,Customers't Requirement,Galvanized,Black,bare |
| Diameter: | 12mm - 500mm,1-500mm,80-800mm | Type: | Alloy Steel Bar,Carbon Steel Bar,Carbon Steel Or Alloy Steel,cold Drawn,Machining Service |
| High Light: | Forged Round Bar,Forged Steel Bars,Forged Steel Round Bars |
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38KHM / 38ХМ Alloy structural steel bright surface
| Grade : | 38KHM ( 38ХМ ) |
| Substitute: | 38ХВ |
| Classification : | Alloy structurall steel |
| Equivalent grades: | Go here |
| C | Si | Mn | Ni | S | P | Cr | Mo | Cu |
| 0.35 - 0.42 | 0.17 - 0.37 | 0.35 - 0.65 | max 0.3 | max 0.035 | max 0.035 | 0.9 - 1.3 | 0.2 - 0.3 | max 0.3 |
| Assortment | Dimension | Direct. | sв | sT | d5 | y | KCU | Heat treatment |
| - | mm | - | MPa | MPa | % | % | kJ / m2 | - |
| Bar, GOST 4543-71 | Ø 25 | 980 | 885 | 11 | 45 | 690 | Guenching 850oC, oil, Drawing 580oC, air, |
| Brinell hardness for 38KHM ( 38ХМ ) (annealing) , GOST 4543-71 | HB 10 -1 = 241 MPa |
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| 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 : |
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| 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] |
Contact Person: Anndy
Tel: +8615502127172
