Grade EN 1.3974
Grade EN 1.3974
Material 1.3974 is an austenitic, non-magnetizable Cr-Ni-Mo-N steel. 1.3974 is resistant to seawater, intergranular and stress corrosion cracking. Material 1.3974 has a high yield strength. Areas of application for 1.3974: shipbuilding, electrical engineering, and mechanical engineering. Most preferred for shipbuilding, resistant to intergranular corrosion, pitting and stress corrosion.
NICROMAL supplies stainless steel 1.3974 as round steel, flat steel, rings, discs, or custom-made parts according to your specifications.
Composition
- C: max. 0,03%
- Cr: 21,0-24,5%
- Mn: 4,50-6,50%
- Mo: 2,80-3,40%
- Nb: 0,10-0,30%
- Ni: 15,5-18,0%
- P: max. 0,025%
- S: max. 0,010%
- Si: max. 1,00%
- Balance: N 0,30-0,50%
Applications
- Ship building
- Electrical engineering
- Machine engineering
Application
- Resistant in sea water up to approx. 60 °C, also against stress corrosion cracking
Delivery form
- Roundbar, rolled
- Flatbar, hot rolled
- Plate, cold rolled
- Plate, hot rolled
- Flatbar, cold rolled
- Roundbar, bright
- Forgings
- laser cuts
- plasma cuts
- waterjet cuts
- Rings
- Discs
- Tailormade drawings
Questions about grade 1.3974
Yes, material 1.3974 belongs to the austenitic, manganese-alloyed steels that were specially developed for non-magnetic applications. In the solution-annealed state, material 1.3974 is practically non-magnetic (relative permeability close to 1).
Due to its high manganese and nitrogen content, 1.3974 is difficult to machine.
The tensile strength of material 1.3974 is 800-1050 MPa.
At 20°C, the density of material 1.3974 is 7.9 kg/dm³.
The hardness of material 1.3974 is max. 341 HBW.