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Heat-resistant structural steels
Quality 1.7709
Grade
20CDV5.7
Material Specifications
EN 10269, DIN 17240, AD 2000 W 0
Treatment
annealed, peeled
Shape
Round
12 mm - 47 mm
Chemical Analysis
| C: | 0,17 - 0,25 % |
| Cr: | 1,2 - 1,5 % |
| Mn: | 0,4 - 0,8 % |
| Mo: | 0,55 - 0,8 % |
| Ni: | max. 0,6 % |
| P: | max. 0,025 % |
| S: | max. 0,03 % |
| Si: | max. 0,4 % |
| V: | 0,2 - 0,35 % |
Application
The material 1.7709 is a heat-resistant structural steel with the elements chromium and vanadium. 1.7709 is used for connecting elements in oil and chemical plants, among others. In the annealed version it is suitable for hot forming.