Mazda 5. Manual - part 59
BODY STRUCTURE [CONSTRUCTION]
09–80A–7
09
End Of Sie
ULTRA HIGH-TENSION STEEL
DPE098007000B06
Characteristics of Ultra High-Tensile Steel Plates
• Ultra high-tensile steel plates have enhanced tensile strength compared to previous high-tensile steel plates.
• Because the strength is maintained even though the plates are thin-walled, the ultra high-tensile steel plates
are used for the frames and the main frame parts which form the cabin, reducing the weight of the vehicle.
• Enhanced shock absorption has improved the safety.
Range of Use and Cautions for Service
• Because the ultra high-tensile steel is hard and it may be difficult to reform, when extracting the damaged part
using a frame repair machine, perform the work verifying that other parts are not affected.
• When drilling welded parts, use a well-ground drill bit.
• After welding, inspect the weld strength. If adhesion is poor, perform CO2 arc welding (plug welding).
*1 : Indicates tensile strength of 590 MPa.
*2 : Indicates tensile strength of 780 MPa.
50
Crossmember No.4
-
x
x
1.20 {0.047}
51
Rear side frame
Front
x
-
x
2.60 {0.102}
Rear
x
-
x
1.80 {0.071}
52
Trunk floor pan
-
-
x
0.70 {0.028}
53
Rear end member
-
-
-
1.20 {0.047}
54
Rear end panel
-
-
x
1.40 {0.055}
No.
Part Name
ultra high-
tension
steel
High-
tension
steel
Rust proof
steel
Thickness
(mm) {in}
*1
*1
*1
*1
*2
*1
*1
*1
*1
*1
*1
FRONT PILLAR REINFORCEMENT (UPPER)
CENTER PILLAR REINFORCEMENT (UPPER)
CENTER PILLAR (INNER)
FRONT PILLAR (INNER)
DASH LOWER MEMBER
FRONT B FRAME
REINFORCEMENT
FRONT PILLAR
REINFORCEMENT (LOWER)
SIDE SILL (INNER)
CENTER PILLAR
REINFORCEMENT (LOWER)
CENTER PILLAR
REINFORCEMENR CENTER
REAR SIDE FRAME
DPE0980B131