Toyota 1991 CAMRY Body Section Repair Manual page 85

HIGH-STRENGTH STEEL (HSS) PARTS
Generally, High-Strength Steel (HSS) is that which has an intensity value of at least 35 kgf/mm
distinguished from mild steel.
The handling of HSS is the same as for mild steel, but the following should be observed.
1. Panel Hammering: Because HSS is thinner than mild steel, care should be taken to avoid warping
during hammering operations.
2. Removing Spot Welds: Because HSS is tougher than mild steel, damage will occur more easily to a
regular drill. Therefore, an HSS-Spot Cutter is recommended.
Also, use a high-torque drill at low speed, and supply grinding oil to the drill during use.
3. Panel Welding: Panel welding procedures for HSS are exactly the same as for mild steel. Plug welding
should be done with a MIG (Metal Inert Gas) welder. Do not gas weld or braze panels at areas other
than specified.
Steering Gear Box
Support Member
Front Spring Support
Plate
Fender Apron to
Cowl Side Member
Front Bumper
Mounting
Reinforcement
Front Crossmember
Front Side Member No. 1
Reinforcement
BODY PANEL CONSTRUCTION
Front Body Pillar Inner
Upper Reinforcement
Front Body Pillar
Inner Upper
Front Body Pillar Lower
Outer Reinforcement
Front Side Member No. 4
Reinforcement
Strut Bar Bracket
Roof Side Inner and
Outer Rail
Center Body Pillar
Inner Upper
Floor Side Member
Front Door Side Impact Protection
Beam
2 , and
Rear Floor Side Member and
Rear Floor Rear Side Member
Belt Anchor to Roof Side
Inner Reinforcement
Rear Suspension Spring
Support
Rear Floor No. 1 Crossmember
Rear Door Outer
Panel
Rear Door Side Impact
Protection Beam
Front Door Outer Panel
CN-3