Special steel
High strength steel and spring steel
PT strip is a spring steel within the group of special steels and has good spring properties in combination with good formability, without piece hardening of your springs. Sorbitex is another specialty steel that has very good spring properties and Rawael is another specialty steel that offers the possibility of very tight tolerances both in terms of mechanical properties and dimension.
PT-Strip
PT stands for Pre Tempered and in practice means that the material has been given a bainitic structure through interstage hardening. The bainitic structure gives the material good formability and high strength at the same time.
Sorbitex
Sorbitex is a sorbitically hardened and textured spring steel where the rolling reduction can be up to about 90%.
Rawael
With Rawael, you get a high-strength, micro-alloyed strip steel with good formability and tight tolerances both in terms of dimension and mechanical properties.
More about our specialty steels
PT-Strip
PT strips have a clearly better formability for a given strength than the martensitic hardened materials. A martensitic hardened material has very limited formability and bendability. Therefore, the component must be manufactured and formed in the annealed/soft condition and the component must be piece hardened afterwards. With PT strips, you eliminate piece hardening of your component with the possibility of significantly tighter dimensional tolerances. In addition, you will achieve a shorter lead time and less scrap with PT-Strip. The Tensile strength of PT-Strip can be selected between RM=900-1500 MPa.
Sorbitex
The material offers tensile strengths up to about 3000 MPa and is used
mainly for return springs for car belts, vacuum cleaner cables etc. The material is supplied with a ground surface and normally with rounded edges to maximize the fatigue properties. The performance of a Sorbitex return spring exceeds that of martensitic hardened return springs.
Rawael
Rawael material allows you to achieve very tight tolerances for the final product and good productivity. You can optimize your manufacturing process in a completely different way than with a material with larger variations. Thanks to its low carbon content, RAWAEL is also weldable. The yield strength can be selected between RM=700-1200 MPa.
Special steel
| EN Standard | Material no. | Swedish standard | DIN | Data sheet | Other info |
|---|---|---|---|---|---|
| RAWAEL 70 | View PDF | Goods made to order | |||
| RAWAEL 80 | View PDF | Goods made to order | |||
| RAWAEL 90 | View PDF | Stock item | |||
| RAWAEL 110 | View PDF | Stock item | |||
| PT-90 | Goods made to order | ||||
| PT-120 | Goods made to order | ||||
| PT-140 | Goods made to order |
