Available in thicknesses from 2 mm to 120 mm. Length tolerance +/- 2mm.
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- Product on request.
- Production time - 1 month.
- Shipping preparation - 2-3 working days.
- Delivery time - depending on the parcel service. Please look at the FAQ.
hn70u is a heat-resistant chrome-nickel-aluminum steel. The material contains max. 1% iron. The material designation hn70u means:
- H - 26-29% chromium;
- N70 - 65-71% nickel;
- U - 2.8-3.5% aluminum.
The grade has excellent heat resistance and high strength. It is conditionally suitable for welding. Before welding, the material should be preheated up to 100-120 ° С. Further heat treatment is required after welding. The alloy is not stable in sulphurous environments.
hn70u is offered in the Evek GmbH online shop. Our prices for GOST steels will surprise you positively. You can order around the clock in our shop.
hn70u is used for light and unstressed parts that are operated in gaseous environments at temperatures from 550 ° С to 1200 ° С. Typical areas of application for hn70u are:
- Gas pipeline construction (pipes and various parts);
- various heating elements;
- Manufacture of welding wire;
- Turbine construction (combustion chamber).
The material is characterized by the following features:
- excellent heat resistance;
- high strength;
- conditionally suitable for welding;
- not stable in sulphurous environments.
Buy hn70u from a reliable supplier. Evek GmbH supplies GOST steels worldwide. We offer various metals of the highest quality and at good prices.