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Russian Metals
30KHGSN2А ( 30ХГСН2А ) ( 30ХГСНА )
| Grade : | 30KHRА ( 30ХРА ) |
| Classification : | Alloy structurall steel |
| Equivalent grades: | Is absent |
Chemical composition in % for grade 30KHRА ( 30ХРА )
| C | Si | Mn | Ni | S | P | Cr | Cu |
|---|---|---|---|---|---|---|---|
| 0.28 - 0.34 | 0.9 - 1.2 | 0.8 - 1.1 | max 0.3 | max 0.025 | max 0.025 | 0.8 - 1.1 | max 0.3 |
Mechanical properties under Т=20oС for grade 30KHRА ( 30ХРА )
| Assortment | Dimension | Direct. | σB | σT | δ5 | ψ | KCU | Heat treatment |
|---|---|---|---|---|---|---|---|---|
| - | (mm) | - | MPa | MPa | % | % | kJ/m² | - |
| , GOST 4543-71 | 1600 | 1300 | 9 | 40 | 500 | Guenching 900oC, oil, Drawing 200oC, air, |
| Brinell hardness for 30KHRА ( 30ХРА ) (annealing) , GOST 4543-71 | HB 10 -1 = 229 MPa |
Types of delivery of grade 30KHGSА ( 30ХГСА )
- B03 - Metal forming treatment. Forgings
- В05 - Welding and cutting of metals., Soldering, riveting
- В22 - Graded and shaped rolling
- B23 - Sheets and Strips
- В32 - Graded and shaped rolling
- B33 - Sheets and Strips
- В62 - Steel pipes and connecting parts to them
- В71 - Low-carbon steel wire
Specification
Mechanical properties :
σB - Tensile strength [MPa]
σT - Yield stress [MPa]
δ5 - Specific elongation at fracture [%]
ψ - Reduction of area [%]
KCU - Impact strength [kJ/m²]
HB - Brinell hardness [MPa]
Physical properties :
T - Test temperature [Grade]
E - Young modulus [MPa]
α - Coefficient of linear expansion (20° - T) [1/Grade]
λ - Thermal (heat) condition coefficient [Watt/(m·Grade)]
ρ - Density [kg/m³]
C - Specific heat (range 20° - 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
30KHGSА ( 30ХГСА ) - Alloy structurall steel: chemical composition, mechanical and physical properties, hardness
Database of steels and alloys (Marochnik) contains information about chemical composition and properties more then 3000 steels and alloys