The Micro Alloy Steel Bar is a material for rack bars in automotive steering systems. It is a core security part that delivers the driver's handle control to the wheels thus determining the car's steering. The rack bar materials should secure quality properties such as uniform material characteristics, excellent durability and abrasion resistance, as well as machinability, annealing and hardening, and correctiveness which are all necessary for processing

Seah, together with POSCO and MANDO, began to domestically develop rack bars for Hyundai Motor's cars in 1996. The developed rack bar began to be adopted in 1999 in the mass production of Hyundai Motor's new car Verna. Its quality and cost competitiveness were recognized, allowing it to be further adopted by Hyundai Motor and GM. This domestic development of the core security parts contributed to boosting the domestic automotive technology competitiveness.

Material Characteristics

Developed the new non-annealed steel, enabling the domestic production of the material which had been imported before.

Due to deletion of the quenching and tempering process, costs were reduced.

Improved the rack correctiveness

Improved the productivity of the manufacture of RACK bars