Chassis and suspension parts carry load for the life of the vehicle. They are usually pressed from thicker or higher-strength steel, arc-welded, and coated against corrosion.
Typical parts in this family
Rear suspension trailing arms and lateral rods; front suspension control arms, pivots, leading arms and compression rods; CNG pipe protectors, regulator brackets and spare-tyre carriers.
Size and material range
Hot-rolled sheet up to 8 mm, ERW tubes of 17 to 90 mm outside diameter, and S420 and C55 steel for forged and machined sections. Forged sections are crack-checked by magnetic particle inspection.