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High-yield-point steel plates for bridges (SBHS)

SBHS (Steel for Bridge High Performance Structures) features high-performance, high-tensile strength steel that was developed based on the results of a joint project carried out by industry and academia for the purpose of reducing the construction costs of steel bridges.

Features

  • Higher yield strength than conventional steel (constant yield strength irrespective of sheet thickness)
  • Greater ease of fabrication and welding than conventional steel, eliminating preheating in some cases, and enabling reducing preheating temperature.
    Steel Yield strength
    (N/mm2
    Tensile strength
    (N/mm2
    Preheating Charpy test
    Test temperature (℃) Absorption energy (J) Test direction
    SBHS500 (W) 500 or more 570~720 Not required -5 100 or more Perpendicular to direction of rolling
    SBHS700 (W) 700 or higher 780~930 50℃ -40 100 or more
  • Charpy test conducted perpendicular to rolling direction; any plate design direction.
  • Improves ease of welding and cold fabrication, etc.; improves formability in manufacturing

NIPPON STEEL estimation results: 3-span continuous composite, 2 main girders (maximum span 60m)

  • Reduction in total construction costs:
    Maximum reduction of approximately 10%(using SBHS500)
  • Reduction of steel weight:
    Using SBHS500:Approximately 7% reduction (relative to SM570)
    Using SBHS700:Approximately 15% reduction (relative to SM570)

Examples of use

Tokyo Gate Bridge (Japan)

The use of SBHS reduced total weight by 3% and total construction cost by 12% (estimates by MLIT).

Nagata Bridge (Japan)

First use of NIPPON STEEL's SBHS high yield steel plate for bridges after this steel was covered by JIS.

Catalogs

Steel Plates (1.55MB)PDFファイル

  • Features
  • Available Grades
  • Authorized Steel Grades by Product Type
  • Manufacturing Process and Quality Control Points
  • Thermo-Mechanical Control Process (TMCP)
  • 400 N/mm2-class Tensile Strength Steel Plates (As-rolled) Available Sizes
  • 490 N/mm2-class Tensile Strength Steel Plates (As-rolled) Available Sizes
  • 490 N/mm2-class Tensile Strength Steel Plates (TMCP: Thermo-Mechanical Control Process) Available Sizes
  • Weldable High-tensile Strength Steel Plates: WEL-TENTM Series
  • Abrasion-resistant Steel Plates: ABREXTM Series
  • Abrasion-resistant Steel Plates for Low Temperatures: ABREXTM LT Series
  • Low-temperature Steel Plates: N-TUFTM Series
  • Sulfuric Acid-resisting Steel Plates: S-TENTM Series
  • Ni-Added Weathering Steel Plates: NAW-TENTM Series
  • Highly Corrosion-resisting Steel Plates: COR-TENTM Series
  • Corrosion-resistant Steel Plates for Export: COR-TENTM
  • Seawater-resistant Steel Plates for Welded Structures: MARILOYTM
  • High Tensile Steel Plates for Building Structures: BT–HT Series
  • Fire-resistant Steel Plates for Building Structures: NSFRTM Series
  • Steel Plates for Elasto-plastic Hysteretic-type Dampers for Building Structures: BT-LYPTM
  • Electromagnetic Mild Steel Plates: NS–MIPTM
  • Information Required for Orders
  • Examples of Marking
  • Conclusions
  • Reference for Use of Steel Plates
  • Reference Tables of Standards
  • NIPPON STEEL Specifications Table of Correlations between Old and New Specifications

Contact Information

For further product information

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