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LIIA1510E
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BRM-30
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BODY REPAIR
LIIA1105E
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BRM-32
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BODY REPAIR
AWIIA1090GB
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Rear Body
LIIA1106E
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BRM-34
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MEASUREMENT
LIIA1511E
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Precaution in Repairing High Strength SteelINFOID:0000000003776125
High strength steel is used for body panels in order to reduce vehicle weight.
Accordingly, precautions in repairing automotive bodies made of high strength steel are described below:
High strength steel (hss)
used in nissan vehicles
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SP130 is the most commonly used HSS.
SP150 HSS is used only on parts that require much more strength.
Read the following precautions when repairing HSS:
1. Additional points to consider• The repair of reinforcements (such as side members) by heat-ing is not recommended since it may weaken the component.
When heating is unavoidable, do not heat HSS parts above
550° C (1,022° F).
Verify heating temperature with a thermometer.
(Crayon-type and other similar type thermometer are appropri-
ate.)
• When straightening body panels, use caution in pulling any HSS panel. Because HSS is very strong, pulling may cause
deformation in adjacent portions of the body. In this case,
increase the number of measuring points, and carefully pull
the HSS panel.
• When cutting HSS panels, avoid gas (torch) cutting if possible. Instead, use a saw to avoid weakening surrounding areas due
to heat. If gas (torch) cutting is unavoidable, allow a minimum
margin of 50 mm (1.97in).
Tensile strength Nissan/Infiniti designation Major applicable parts
373 N/mm
2
(38kg/mm2 ,54klb/sq in) SP130• Front inner pillar upper
• Front pillar hinge brace
• Outer front pillar reinforcement
• Other reinforcements
785-981 N/mm
2
(80-100kg/mm2
114-142klb/sq in) SP150
• Outer sill reinforcement
• Main back pillar
PIIA0115E
PIIA0116E
PIIA0117E
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