Hot-rolled Steel Sheets

780N/mm2 Class Hot-rolled High Strength Steel Sheets with Extra Stretch Flange Formability - NANO HITEN
(JFE-HAxxxNANO)

ExampleAutomobile SuspensionPhoto 1 Example Automobile Suspension

Characteristics

  • Consistency of elongation and stretch flange which are considered difficult.
  • Extremely narrow deviation of mechanical properties and superior stable quality of material.
  • Easy production of thin and wide products. Hot-dip galvanizing is also available.

Example for applications

  • Arm, member and frame parts of automobile
  • Body reinforcement, etc.

Data

Typical mechanical properties of 780N/mm2 class

  T(mm) YS(N/mm2) TS(N/mm2) El(%) λ(%)
780NANO 3.2 754 805 24 97
2.0 794 806 20 112
1.6 788 830 19 106
780Highλ 3.4 706 781 18 81
780
Conventional
precipitation
3.2 734 811 18 38
Tensile test : JIS No.5 test specimen, transverse to rolling direction
Hole expanding test : Punch hole dia. 10mmø cone ponch, upper burring

Fig. 1 El - λ balance of NANO HITEN
(3.2mm)

1

Fig. 2 Deviation of TS of 780 NANO

2

Fig. 3 Available product size range of
780N/mm2class

Table 2 Typical mechanical properties of 780NANO-GA

Thickness
(mm)
YS
(N/mm2)
TS
(N/mm2)
El(%) λ(%)
2.0 776 791 19 103
GA
 • Coated mass : 43g/m2
 • Adhesion : No peering after contact bending
Remarks : 980N/mm2 class is also available.

NANO:(New Application of Nano Obstacles for dislocation movement)