
The
use of steel tube in Automotive Industry has been on the increase since
the beginning of 90's, especially in safety structures and safety
related components of vehicles. Increase applications and high demand of
steel tubes in automobile sector is due to its reliability, strength and
corrosion resistance properties. High capacity of energy absorption,
high safety of the construction and resistance against collision shocks,
makes steel tubes an imperative component of Automobile Industry.
Close tolerance on diameter and thickness, exceptional concentricity
and a smooth finish, both inside and outside, facilitate engineers to
obtain uniform flow under controlled temperature and pressure. Its
chemical composition, mechanical properties, weldability and
corrosion/oxidation resistance provide the best all-round performance at
relatively low cost. It also has excellent low temperature properties
and responds well to hardening by cold working.
Steel tube successfully meet the requirement of advanced automotive
industry. The main feature of steel tubes are its high rigidity and low
weight leading to major cut down in weight, dimensions, material and
total cost. Few examples of the use of steel tubes in automobile
industry are side impact absorbers, steel frames, bumpers, the cross
members between A pillars and engine cradles.