Description
The high-strength structural steel at 900MPa
S900MC steel is a hot-rolled structural steel made for cold forming, with a minimum yield strength of 900 MPa.
It meets the requirements of S900MC in EN 10149-2. These cut-to-length sheets feature excellent thickness accuracy and surface quality in relation to strength level, providing an outstanding finish to the final products.
Typical applications include advanced lifting devices and lighter transport solutions and components.
Dimension Range
S900MC steel is available as cut to length sheets with mill edge in thicknesses of 3.00 - 10.00 mm, widths up to 1600 mm and lengths up to 13 meters.
Mechanical Properties
| Thickness (mm) | Yield strength ReH (1) (min MPa) | Tensile strength Rm (MPa) | Elongation A5 (min %) | Min. inner bending radius for a 90° bend (2) |
| 3 - 8 | 900 | 930 - 1200 | 8 | 3 x t |
| 8 - 10 | 900 | 930 - 1200 8 3.5 | 8 | 3 x t |
The mechanical properties are tested in the longitudinal direction.
(1) If ReH is not applicable then Rp 0,2 is used.
(2) For both longitudinal and transverse direction.
Impact Properties
| Test direction | Min impact energy for Charpy V 10x10 mm tests specimens |
| Longitudinal | 27 J/-40 °C |
Impact testing according to EN 10149-2 ( -20 °C /minimum 40J) is available if specified at the time of order.
Impact testing according to EN ISO 148-1 is performed on thicknesses ≥ 5mm. The specified minimum value corresponds to a full-size specimen.
Chemical Composition (ladle analysis), %
| C, max | Si, max | Mn, mx | P, max | S, max | Al, min | Nb,max | V, max | Ti, max |
| 0.10 | 0.25 | 1.30 | 0.020 | 0.010 | 0.015 | 0.05 | 0.05 | 0.07 |
The steel is grain refined.
Sum of Nb, V and Ti = max 0.18%
Thickness
Tolerances according to EN 10051.
Length and Width
Width and length tolerances according to EN 10051. Length tolerances only apply for cut to length sheets.
Shape
Tolerances according to EN 10051. Narrower tolerances are available on request.
Flatness
Tolerances according to EN 10051.
Flatness guarantees only apply for cut to length sheets.
Surface Properties
According to EN 10163-2 Class A, Subclass 3.
Delivery Conditions
S900MC steel is supplied in as rolled surface condition, pickled surface is available in a limited thickness range. The product is thermomechanically rolled.
Fabrication and Other Recommendations
Welding, bending and machining
S900MC steel has good welding, cold forming and cutting performance.
S900MC steel is not suited for applications requiring hot working or heat treatments at temperatures above 400 °C since the material then may lose its guaranteed properties.
Appropriate health and safety precautions must be taken when bending, welding, cutting, grinding or otherwise working on the product.
Specification
Plate thickness: 4-100mm
Width: 500mm – 4700mm
Length: On request
Production process
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S900ML high toughness structural steel plate Images
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