Amstrong® 420MC CLAS AM FCE

Alternative and trade names
Sollaser® 440,Sidlaser® 420
Want to keep this datasheet? Save it now in your required format

Description

Steel coil for laser cutting applications (CLAS). A hot rolled coil developed for applications using computer-controlled thermal and mechanical cutting equipment (laser, plasma etc).

  • Gives improved productivity, quality and consistency with laser cutting
  • Meets the most stringent flatness requirements after cutting

    High yield strength steels for cold forming comprises improved versions of Amstrong® 315MC, Amstrong® 355MC, Amstrong® 420MC and Amstrong® 500MC, as per EN 10149-2:2013.

  • Related Standards

    Equivalent Materials

    This material data has been provided by ArcelorMittal.

    "Typical" values were obtained via a literature search. "Predicted" values were imputed via artificial intelligence technology. While we have placed significant efforts in ensuring data accuracy, "typical" and "predicted" data should be considered indicative and verified by appropriate material testing. Please do contact us if additional information on the the predicted data method is required.
    All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
    Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

    Ashby charts

    Properties

    General

    PropertyValueComment

    Carbon equivalent (CEV)

    0.38 [-]

    Show Supplier Material materials with Carbon equivalent (CEV) of 0.38 [-]

    max.

    Dimension

    PropertyValue

    Dimensions

    Please feel free to check the figure on the right side of the material page for more details.

    Mechanical

    PropertyTemperatureValueComment

    Bend allowance

    0.5 [-]

    Show Supplier Material materials with Bend allowance of 0.5 [-]

    min. | for thickness 2-14 mm | Transverse

    Charpy impact energy

    -20 °C

    40 J

    Show Supplier Material materials with Charpy impact energy of 40 J

    min. | for thickness 6-14 mm

    Elongation

    17 %

    Show Supplier Material materials with Elongation of 17 %

    min. | for thickness 2-3 mm | Transverse, A80

    18 %

    Show Supplier Material materials with Elongation of 18 %

    min. | for thickness 2-3 mm, A80

    22 %

    Show Supplier Material materials with Elongation of 22 %

    min. A5.65√So | for thickness 3-14 mm | Transverse

    23 %

    Show Supplier Material materials with Elongation of 23 %

    min. A5.65√So | for thickness 3-14 mm

    Tensile strength

    490 - 590 MPa

    Show Supplier Material materials with Tensile strength of 490 - 590 MPa

    for thickness 2-14 mm

    500 - 600 MPa

    Show Supplier Material materials with Tensile strength of 500 - 600 MPa

    for thickness 2-14 mm | Transverse

    Yield strength

    420 - 500 MPa

    Show Supplier Material materials with Yield strength of 420 - 500 MPa

    for thickness 2-14 mm

    440 - 520 MPa

    Show Supplier Material materials with Yield strength of 440 - 520 MPa

    for thickness 2-14 mm | Transverse

    Chemical properties

    PropertyValueComment

    Aluminium

    0.02 %

    Show Supplier Material materials with Aluminium of 0.02 %

    min.

    Carbon

    0.11 %

    Show Supplier Material materials with Carbon of 0.11 %

    max.

    Chromium

    0.15 %

    Show Supplier Material materials with Chromium of 0.15 %

    max.

    Copper

    0.25 %

    Show Supplier Material materials with Copper of 0.25 %

    max.

    Manganese

    1.5 %

    Show Supplier Material materials with Manganese of 1.5 %

    max.

    Nickel

    0.25 %

    Show Supplier Material materials with Nickel of 0.25 %

    max.

    Niobium

    0.065 %

    Show Supplier Material materials with Niobium of 0.065 %

    max.

    Phosphorus

    0.02 %

    Show Supplier Material materials with Phosphorus of 0.02 %

    max.

    Silicon

    0.03 %

    Show Supplier Material materials with Silicon of 0.03 %

    max.

    Sulfur

    0.012 %

    Show Supplier Material materials with Sulfur of 0.012 %

    max.

    Technological properties

    Property
    Application areas

    This grade is particularly suitable for manufacturing complex parts or for improving productivity when parts are to be produced on a small scale.


    Since 1 July 2013, the Construction Products Regulation (Regulation (EU) No. 305/2011 – CPR) has required that CE marking be affixed to all products delivered in accordance with a harmonised standard (e.g. EN 10025). This CE marking guarantees, for the uses defined in the standard, the properties described in the declaration of performance submitted by the manufacturer.

    Coating

    Galvanisation: Class 1

    Other

    Steel coils supplied for laser cutting are virtually free of internal stresses and can therefore be used to produce sheets with guaranteed flatness before, during and after cutting, provided that appropriate decoiling tools and procedures are used. Sheets produced on cutting-to-length lines certified by ArcelorMittal may have guaranteed flatness before, during and after cutting.


    For thicknesses below 16 mm, steels for laser cutting offer significantly higher laser cutting speeds than those obtained with standard grades and/or conventional cutting processes (plasma, oxy-cutting).

    These steels can be hot dip galvanised.


    Laser cutting speed largely depends on surface homogeneity and reflectivity. To improve productivity for our clients, ArcelorMittal has developed several surface finishes compatible with laser cutting:


    Mill finish:

  • Surface appearance: only A (unexposed) is available
  • Surface cleanliness: on request, Amstrong® grades can be delivered with an improved surface finish on black hot rolled product. Contact our commercial teams for further information.

    Pickled:

    ArcelorMittal's hydrochloric acid pickling process produces a clean, more favourable surface for laser cutting than that produced by sulphuric acid pickling.

  • Surface appearance: A (unexposed) and B (exposed) are available
  • Protection:
    • Protective oil may be applied
    • Easyfilm® HPE is available. It offers more uniform dry surface protection than oil and favourably reduces the reflectivity of the steel. Moreover, since no oil is used, workplace floors are cleaner and safer.


    Thickness tolerance

    The consistent thickness and reduced internal stresses of these coils make it possible to operate laser cutting machines continuously by lowering the breakdown risk and the frequency of laser cutting head breakage. This allows the use of fully automated loading and discharging systems.


    The following thickness tolerances (EN 10051:2010) are available: 3/4, 1/2 and 1/3 for both mill finish and pickled steels. Contact our commercial teams for stricter tolerances.

    Amstrong® grades are delivered with a thickness tolerance of 1/2 EN if a tighter tolerance is not requested.

    Flatness tolerance

    Since the degree of sheet flatness obtained mainly depends on the uncoiling and levelling process used during laser cutting, we cannot offer any guarantee for coil products supplied.

  • Welding

    Due to their low carbon equivalent value, ArcelorMittal's steel coils for laser cutting applications offer excellent weldability.