| Grade : | 20KHG2TS ( 20ХГ2Ц ) |
| Classification : | Structural steel for welding construct |
| Equivalent grades: | Is absent |
Chemical composition in % for grade 20KHG2TS ( 20ХГ2Ц )
| C | Si | Mn | Ni | S | P | Cr | Cu | Zr |
| 0.19 - 0.26 | 0.4 - 0.7 | 1.5 - 1.9 | max 0.3 | max 0.045 | max 0.045 | 0.9 - 1.2 | max 0.3 | 0.05 - 0.14 |
Temperature of critical points for grade 20KHG2TS ( 20ХГ2Ц ).
| Ac1 = 770 , Ac3(Acm) = 835 , Ar3(Arcm) = 740 , Mn = 345 |
Mechanical properties under Т=20oС for grade 20KHG2TS ( 20ХГ2Ц )
| Assortment | Dimension | Direct. | sв | sT | d5 | y | KCU | Heat treatment |
| - | mm | - | MPa | MPa | % | % | kJ / m2 | - |
| Rebar, GOST 5781-82 | Ø 10 - 18 | 883 | 590 | 6 |
Technological properties for grade 20KHG2TS ( 20ХГ2Ц )
| Weldability: | without limitations. |
Physical properties for grade 20KHG2TS ( 20ХГ2Ц )
| 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 | ||||||
| 100 | 12.3 | |||||
| 200 | 12.3 | |||||
| 300 | 12.5 | |||||
| 400 | 13.1 | |||||
| 500 | 13.5 | |||||
| 600 | 13.9 | |||||
| 700 | 14.2 | |||||
| T | E 10- 5 | a 10 6 | l | r | C | R 10 9 |
Types of delivery of grade 20KHG2TS ( 20ХГ2Ц )
| В22 - Graded and shaped rolling |
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 |
20KHG2TS ( 20ХГ2Ц ) - Structural steel for welding construct: chemical composition, mechanical and physical properties, hardness
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