AHSS
AHSS stands for Advanced High Strength Steel ( German as: more advanced high-strength steel ) and refers to modern high-strength, non-alloyed steels , also known as carbon steel , carbon steel , carbon steel and AHS steel are called. In addition, some traditional steels such as knife steel are also called carbon or carbon steel . AHSS steels are usually classed as stainless steels .
The terms AHSS and HSS are not related. While AHSS is one of the unalloyed steels, HSS stands for High Speed Steel , i.e. for alloyed high-speed steel .
AHS steels include, for example, cold work steels (unalloyed tool steels ), dual-phase steel , multi-phase steel , high-strength complex- phase steel and bake-hardening steel . A specialty is TRIP steel (TRansformation Induced Plasticity) and TWIP steel (Twinning Induced Plasticity, in German “Twin formation induced plasticity”). TRIP and TWIP steels change their strength when they are deformed.
AHS steels are characterized by martensitic and bainitic structural components, which result in high strength and good formability.
AHS steels are used as sheet metal in automobile construction . Here they are used for safety-relevant elements to absorb deformation energy . This makes the bodies lighter and stronger, which contributes to both weight savings and crash safety .
As carbon steel pipes called pipelines are with outside galvanizing in climate and heating systems used. As thin-walled precision steel tubes with press connections, they are often used instead of the threaded tubes previously used. With external and internal galvanization, they serve as pipes in sprinkler systems .
Web links
- Advanced High-Strength Steel (AHSS) Weld Performance Study for Autobody Structural Components
- High-strength complex-phase steels
Footnotes
- ↑ a b What is tool steel? , In: Kontur-Werkzeugstahl.de