Gost 20h2n4a bar 2-120mm round bar profile round steel bar 0.5-2 meters (length : 2 Meter, size : 100mm)
Gost 20h2n4a bar 2-120mm round bar profile round steel bar 0.5-2 meters
Available in thicknesses from 2mm to 120mm. Length tolerance +/-2 mm.
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- product on request.
- Production time - 1 month.
- Preparation for shipment - 2-3 working days.
- Delivery time - depending on the parcel service. Please look at the FAQ.
20h2n4a is an alloyed chromium-nickel steel. This type of steel belongs to the structural steel category. The material designation 12xh3a means:
- 20 - 0.20% carbon content;
- H2 - about 2% chromium;
- N4 - about 4% nickel;
- А - steel quality very high.
The material has excellent plastic deformability in combination with high core toughness. The high surface hardness enables use with high shock and impact loads and at low temperatures. The material is poorly weldable. In order to achieve optimal welding results, preheating to 200-300 °C is required. After welding, heat treatment by annealing is necessary.
As a supplier for 20h2n4a, we ship GOST steel worldwide. Evek GmbH online shop offers a wide range of metals and steels of the highest quality.
20h2n4a is used for parts that have to withstand high impact loads or low temperatures. The following components are mainly produced from this quality:
- gears;
- gear shafts;
- gudgeon pin.
- excellent plastic deformability;
- high core toughness;
- high surface hardness;
- poorly sweatable.
You can buy 20h2n4a at a good price via Evek GmbH. Our range includes GOST steels of various sizes and shapes.
Chemical composition (in %)
| C | si | Cr | Mn | no | S | P | Cu |
| 0.16-0.22 | 0.17-0.37 | 1.25-1.65 | 0.3-0.6 | 3.25-3.65 | 0.025 | 0.025 | 0.3 |
- Type
- Round bar
- material
- Structural steel
- operation area
- Gear wheels; gear shafts; piston pins
- GOST
- 4543-71
- density
- 7.85 g/cm³
- Weldability
- Poorly suitable for welding
- tensile strenght
- 1270 MPa
- Yield stress
- 1080 MPa
- Elongation at break
- 9%
- Constriction of the fracture
- 45%
- Scare off
- 780 to 860 °C / cooling in oil
- Tempering
- 180 °C / air cooling or cooling in oil
Everything great! Top goods, f...
Everything great! Top goods, fast delivery!!! Thanks very much!
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