Description
500ML structural steel is a thermomechanically rolled steel with a minimum yield strength of 500 MPa. 500ML structural steel has no equivalence in any structural standard.
Dimension Range
500ML structural steel is available in thicknesses of 8.00-60.00 and in widths up to 3300mm depending on the thickness.
Mechanical Properties
| Thickness (mm) | Yield strength ReH (min MPa) | Tensile strength Rm (MPa) | Elongation A (min %) |
| 8.00 - 16.00 | 500 | 570 - 760 | 16 |
| 16.01 - 40.00 | 480 | 570 - 760 | 16 |
| 40.01 - 60.00 | 470 | 560 - 760 | 16 |
The tensile test is made transversally to the rolling direction in compliance with EN 10025-4.
Impact Properties
| Test temperature | Min. impact energy for longitudinal Charpy V- notch test |
| -60 °C | 40 J |
The impact test is made longitudinally to the rolling direction in compliance with EN 10025-4.
Chemical Composition (Ladle analysis), %, max
| C | Si | Mn | P | S | Al | Nb | V | Ti |
| 0.18 | 0.50 | 1.70 | 0.020 | 0.010 | 0.02 | 0.05 | 0.12 | 0.05 |
Thickness
500ML structural steel is delivered with tolerances that correspond to ¾ of EN 10029:2011 Class A as default value.
Length and Width
Width tolerances -0/+4-10mm depending on the thickness. Length tolerances -0/+15-25mm depending on length.
Shape
According to EN 10029.
Flatness
Maximum flatness deviation 6 mm/m.
Surface
According to EN 10163-2 Class A3.
Delivery Conditions
Thermomechanically rolled (M).
Fabrication and Other Recommendations
Minimum inner bending radius is 1.0 x t transverse to the rolling direction and 1.5 x t longitudinal to the rolling direction up to max 20mm in thickness.
Appropriate health and safety precautions must be taken when bending, welding, cutting, grinding or otherwise working on the product.
Production process
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500ML thermomechanically rolled high strength structural steel plate Images
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