ULTRA HIGH-TENSION STEEL [CONSTRUCTION]

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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).

4SD

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NO.

Part Name

Strength (MPa)

1

Front side frame (inner, rear)

590

2

Hinge pillar (inner)

590

3

Front pillar (inner)

590

4

Front pillar reinforcement

590

5

Roof rail reinforcement

590

6

Roof rail (inner, rear)

590

7

Rear side frame (center)

590

8

Rear side frame (rear)

590

9

Rear side frame (front)

590

10

Crossmember No.3 (front)

590

11

Side sill (inner)

590

12

B-pillar reinforcement (outer, lower)

590

13

Side sill reinforcement

590

14

Crossmember No.2

590

15

Hinge reinforcement

590

16

Dash lower member

590

17

B-pillar reinforcement (inner)

780

18

Roof reinforcement No.2

780

19

B-pillar reinforcement (outer, upper)

780

20

Crossmember No.3

590

5HB

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NO.	Part Name	Strength (MPa)
1	Front side frame (inner, rear)	590
2	Hinge pillar (inner)	590
3	Front pillar (inner)	590
4	Front pillar reinforcement	590
5	Roof rail reinforcement	590
6	Roof rail (inner, rear)	590
7	Rear side frame (center)	590
8	Rear side frame (rear)	590
9	Rear side frame (front)	590
10	Crossmember No.3 (front)	590
11	Side sill (inner)	590
12	B-pillar reinforcement (outer, lower)	590
13	Side sill reinforcement	590
14	Crossmember No.2	590
15	Hinge reinforcement	590
16	Dash lower member	590
17	B-pillar reinforcement (inner)	780
18	Roof reinforcement No.2	780
19	B-pillar reinforcement (outer, upper)	780
20	Crossmember No.3	590