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backheat-resistant structural steels
heat-resistant structural steels
Quality 1.7258
Grade
1.7258
Material Specifications
EN 10269, DIN 17240
Treatment
quenched and tempered, peeled
Mechanical Specifications
600 - 1100 N/mm²
Shape
Round
10,68 mm - 65,72 mm
Chemical Analysis
| C: | 0,2 - 0,38 % |
| Cr: | 0,9 - 1,2 % |
| Mn: | 0,5 - 0,8 % |
| Mo: | 0,2 - 0,35 % |
| Ni: | max. 0,6 % |
| P: | max. 0,035 % |
| S: | max. 0,035 % |
| Si: | max. 0,4 % |
Application
The material 1.7258 is a cold-hardened Cr-Mo steel for fasteners. The 1.7258 is weldable. In the quenched and tempered version it can be used up to 500 degrees C. For fasteners, 1.7258 is standardized according to DIN17240