Description
S1100 steel is a structural steel with a high yield strength at a minimum of 1100 MPa.
Typical applications include demanding load-bearing structures. Despite its strength, the material is surprisingly easy to weld and bend.
S1100 steel benefits include
• Good weldability with excellent HAZ strength and toughness
• Exceptional consistency within a plate guaranteed by close tolerances
• High impact toughness which provides for good resistance to fractures
• Superior bendability and surface quality
Dimension Range
S1100 structural steel is available in plate thicknesses of 4 – 40 mm. S1100 steel is available in widths up to 3200 mm and lengths up to 14630 mm depending on thickness. More detailed information on dimensions is provided in the dimension program
Mechanical Properties
| Thickness (mm) | Yield strength Rp0.2 (min MPa) | Tensile strength Rm (MPa) | Elongation A5 (min %) |
| 4.0- 4.9 | 1100 | 1250- 1550 | 8 |
| 5.0- 40.0 | 1100 | 1250- 1550 | 10 |
For transverse test pieces.
Impact Properties
| Grade | Min transverse test, impact energy, Charpy V 10x10 mm tests specimens |
| S1100 | 27 J/-40 °C |
Unless otherwise agreed, transverse impact testing according to EN 10025-6 option 30 will apply. For thicknesses between 6 - 11.9 mm, subsize Charpy V-specimens are used. The specified minimum value is then proportional to the cross-sectional area of the specimen compared to a full-size specimen (10 x 10 mm).
Chemical Composition, %, max
| C *) | Si *) | Mn *) | P | S | Cr *) | Cu | Ni *) | Mo *) | B *) |
| 0.21 | 0.50 | 1.40 | 0.020 | 0.005 | 0.80 | 0.30 | 3 | 0.70 | 0.005 |
The steel is grain-refined. *) Intentional alloying elements.
Thickness
Tolerances meets the requirements of EN 10029 Class A, but offers narrower tolerances.
Length and Width
Tolerances conform to EN 10029.
Shape
VANFORGE offers tolerances according to EN 10029.
Flatness
Tolerances according to EN 10029 Class N.
Surface Properties
According to EN 10163-2 Class A, Subclass 3.
Delivery Conditions
The delivery condition is Q or QT (Quenched or Quenched and Tempered at our discretion). The plates are delivered with sheared or thermally cut edges. Untrimmed edge after agreement.
Fabrication and Other Recommendations
Welding, bending and machining
S1100 steel has obtained its mechanical properties by quenching and subsequent tempering. The properties of the delivery condition cannot be retained after exposure to temperatures in excess of 200ºC.
Appropriate health and safety precautions must be taken when welding, cutting, grinding or otherwise working on this product. Grinding, especially of primer coated plates, may produce dust with a high particle concentration.
Specification
Plate thickness: 4-100mm
Width: 500mm – 4700mm
Length: On request
Production process
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S1100 high yield strength quenched and tempered structural steel plate Images
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