Products Specialty Steel
High-strength steel and spring steel. PT strip is a spring steel with good spring properties and good formability, without causing work hardening in your springs.
Spring steel and high-strength steel Three specialty steels with unique properties
PT strip is a spring steel within the specialty steel group, offering good spring properties combined with good formability. Sorbitex® is another specialty steel with very good spring properties, and RAWAEL® allows for very tight tolerances, both for mechanical properties and dimensions.
Spring Steel PT strip
PT stands for "Pre-Tempered" and means that the material has been given a bainitic structure through intermediate hardening. The bainitic structure provides both good formability and high strength.
PT strips have significantly better formability for a given strength than martensitic-hardened materials. A martensitic-hardened material has very limited formability and bendability, so the component must be formed in an annealed, soft state and then individually hardened afterward. With PT strips, you eliminate the need for individual hardening, enabling significantly tighter dimensional tolerances, shorter lead times, and less scrap.
The yield strength of PT strips can be selected between 900 and 1,500 MPa. We supply PT-90, PT-120, and PT-140.
Spring Steel Sorbitex®
Sorbitex® is a sorbitic-hardened, texture-rolled spring steel with a rolling reduction of up to approximately 90%. The material offers tensile strengths of up to approximately 3,000 MPa and is primarily used for return springs in seat belts, vacuum cleaner cords, and other applications.
It is supplied with a ground surface and typically with rounded edges to maximize fatigue properties. The performance of a Sorbitex® return spring surpasses that of martensitic-hardened return springs.
High-strength steel RAWAEL®
With RAWAEL®, you get a high-strength, micro-alloyed strip steel with good formability and tight tolerances—both in terms of dimensions and mechanical properties. This ensures very tight tolerances in the final product and high productivity—you can optimize your manufacturing process in a way that’s completely different from using a material with greater variations.
Thanks to its low carbon content, RAWAEL® is also weldable. The tensile strength can be selected between 700 and 1,200 MPa.
Alleima Specialty Steel from Alleima
We also supply specialty steels from Alleima: knife steels such as 12C27, 13C26, 14C28N, and the stainless Damascus steel Damax™, as well as stainless spring steels such as 11R51, 13RM19, and Nanoflex™. See the complete overview of steel grades.
Steel Grades Special steel grades
Here are the steel grades we most commonly supply. If you can’t find the grade you’re looking for, we most likely have an equivalent—just ask us. You can easily calculate the weights and dimensions of coils and sheet metal using our SteelCalculus® tool .
Special steel
Contact Talk to one of our experts about materials
Please contact one of our experts to discuss which material is best suited for you. Feel free to provide a drawing, specification, or simple sketch, and we’ll get back to you with material recommendations.
- Phone+46 (0)40 231 222
- Emailinfo@scanstrip.se