| Grade : | 35KHGSА ( 35ХГСА ) |
| Substitute: | 30ХГС, 30ХГСА, 30ХГТ, 35ХМ |
| Classification : | Alloy structurall steel |
| Equivalent grades: | Go here |
Chemical composition in % for grade 35KHGSА ( 35ХГСА )
| C | Si | Mn | Ni | S | P | Cr | Cu |
| 0.32 - 0.39 | 1.1 - 1.4 | 0.8 - 1.1 | max 0.3 | max 0.025 | max 0.025 | 1.1 - 1.4 | max 0.3 |
Temperature of critical points for grade 35KHGSА ( 35ХГСА ).
| Ac1 = 760 , Ac3(Acm) = 830 , Ar3(Arcm) = 705 , Mn = 670 |
Mechanical properties under Т=20oС for grade 35KHGSА ( 35ХГСА )
| Assortment | Dimension | Direct. | sв | sT | d5 | y | KCU | Heat treatment |
| - | mm | - | MPa | MPa | % | % | kJ / m2 | - |
| Bar, GOST 4543-71 | 1620 | 1275 | 9 | 40 | 390 | Guenching and drawing | ||
| Forging | 100 - 300 | 660 | 490 | 13 | 40 | 540 | Guenching and drawing |
| Brinell hardness for 35KHGSА ( 35ХГСА ) (annealing) , GOST 4543-71 | HB 10 -1 = 241 MPa |
Technological properties for grade 35KHGSА ( 35ХГСА )
| Weldability: | limited weldability. |
| Flakes : | predisposed |
| Temper brittleness: | predisposed |
Equivalent steels for grade 35KHGSА ( 35ХГСА )
| Bulgaria | Poland | |||
| BDS | PN | |||
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Types of delivery of grade 35KHGSА ( 35ХГСА )
| B03 - Metal forming treatment. Forgings |
| В22 - Graded and shaped rolling |
| B23 - Sheets and Strips |
| В32 - Graded and shaped rolling |
| В62 - Steel pipes and connecting parts to them |
| В71 - Low-carbon steel wire |
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 |
35KHGSА ( 35ХГСА ) - Alloy structurall steel: chemical composition, mechanical and physical properties, hardness
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