Our
product range
backsteels for military technology
steels for military technology
Quality 1.3974.7
Grade
1.3974.7
AISI/UNS + Alloy
F49
Material Specifications
WL 1.3974, WK, F49, S33228, SEW 390
Treatment
warm work hardended
Shape
Round
12 mm - 50 mm
Chemical Analysis
| C: | max. 0,03 % |
| Cr: | 21,5 - 24,5 % |
| Mn: | 4,5 - 6,5 % |
| Mo: | 2,8 - 3,4 % |
| Ni: | 15,5 - 18,0 % |
| P: | max. 0,025 % |
| S: | max. max. 0,01% |
| Si: | max. 1,00 % |
| N: | 0,30 - 0,50 % |
| Nb: | 0,1 - 0,3 % |
Application
The material 1.3974 is an austenitic, non-magnetizable Cr-Ni-Mo-N steel. Resistant to seawater intergranular and stress corrosion cracking. High yield strength. Application: shipbuilding, electrical engineering, mechanical engineering, preferred for shipbuilding, resistant to intergranular corrosion, pitting corrosion and stress corrosion cracking.