Alternative and trade names
EN 10028-5 Grade P460ML2
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DI-TANK 460 is the Dillinger designation of fine grain steels thermo-mechanically rolled (M or TMCP) used for the fabrication of storage tanks for hydrocarbons in the oil and gas industry and complies with the relevant construction codes.

The DI-TANK offers two options, in accordance with different standards:

DI-TANK 460 / DI-TANK 460 HIC:

  • is an enhanced variant of P460ML2, complies with EN 10028-5 and simultaneously possible with the two following construction codes : EN 14620 (2, see General Notes) and EN 13445.

    Examples for ordering:

  • DI-TANK 460, P460ML2
  • DI-TANK 460 HIC, P460ML2

    This material page is about the material without special HIC properties.

  • Related Standards

    Equivalent Materials

    This material data has been provided by Dillinger.

    "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




    Carbon equivalent (CEV)

    0.42 [-]

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    max. value for plate thickness 10 to 40 mm

    Carbon equivalent note

    CEV = C + Mn/6 + (Cr+Mo+V)/5 + (Cu+Ni)/15



    Charpy impact energy, V-notch

    -50 °C

    80 J

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    average of 3 tests | longitudinal/transverse specimens | no individual value is to be less than 70% of the specified minimum


    19 %

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    min. for plate thickness 10 to 40 mm, A5

    Tensile strength

    530 - 720 MPa

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    for plate thickness 10 to 40 mm

    Yield strength

    460 MPa

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    min. ReH for plate thickness 10 to 40 mm

    Chemical properties



    0.02 - 0.06 %

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    0.13 %

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    0.25 %

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    0.25 %

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    1 - 1.7 %

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    0.08 %

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    0.3 %

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    0.05 %

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    0.01 %

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    0.02 %

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    0.6 %

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    0.002 %

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    0.05 %

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    0.08 %

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    Technological properties

    Cold Forming

    DI-TANK 460 can generally be well cold formed with regard to its high toughness, i.e. formed at temperatures below 580 °C. Cold forming is always related to a hardening of the steel and to a decrease in toughness. This change in the mechanical can, as a rule, be partially recovered through a subsequent stress relief heat treatment at a temperature below 580 °C. Irregularities at the flame cut or sheared edges in the bending area should be ground before cold forming. For larger cold forming amounts we recommend you to consult us prior to ordering.

    Delivery condtion

    Thermo-mechanical rolling according to EN 10028-5 (M).

    Flame cutting and welding

    DI-TANK 460 can be flame cut in all thickness ranges without preheating due to its low hardenability.

    Plasma and laser cutting can also be carried out without preheating for typical thickness. The family of DI-TANK has an excellent weldability if the general technical rules are observed (EN 1011 has to be applied analogously). The risk of cold cracking is low, so a preheating may not be necessary for most of the welds. When welding thicker plates preheating can still be avoided if filler materials and welding conditions are applied that lead to a very low hydrogen transfer (up to 5 ml/100 g DM according to ISO 3690).

    The low contents of carbon and other alloy elements lead to favourable toughness properties in the heat-affected-zone, even with relatively high heat inputs. Depending on the chosen welding process, welding filler material as well as toughness requirements in the heat affected zone, also it permits t8/5 cooling times above of 25 s as stated in EN 1011-2. The upper limit of heat input is however dependent from the toughness requirements in particular the impact test temperature.

    General note

    A stress relief heat treatment may be required above 580 °C by the API 650, API 620 and also EN 14620. The standards authorize a reduction of the PWHT temperature (below 580 °C) providing a longer holding time, with the purchaser’s agreement. Then, the parameters of the PWHT have to be specified and agreed at the time of the inquiry. Nevertheless, DI-TANK 460 is offered with a HP value (Pcrit) of 17,6.

    If special requirements which are not listed in this material data sheet, are to be met by the steel due to its intended use or processing, these requirements are to be agreed before placing the order. The information in this data sheet is a product description. This data sheet is updated as occasion demands. The latest version is available from the mill or as download at www.dillinger.de.

    Hot forming

    Hot forming, i.e. forming at temperatures above 580 °C, leads to changes in the original material condition. It is impossible to re-establish the same material properties that had been achieved during the original manufacture through a further heat treatment. Therefore hot forming is not permitted. The same limitation applies for heat treatments.


    In addition to the marking required by the product specification, at least the following information will be marked, with low stress steel stamps:

  • Steel designation DI-TANK 460 P460ML2
  • Heat number
  • Number of mother plate and individual plate
  • The manufacturer’s symbol
  • Inspector’s sign

  • Processing history

    BOF-converter process and metallurgical ladle treatment.

    The steel is fully killed and fine grained by the addition of nitrogen fixing elements.

    Processing methods

    The customer is responsible for the selection of the material.

    The entire processing and application techniques are of fundamental importance to the reliability of the products made from steel. The user should ensure that his design, calculation and processing methods are aligned with the material, correspond to the state-of-the-art that fabricator has to comply with and are suitable for the intended use. The recommendations given in EN 1011-2 should be observed.

    Surface condition

    Unless otherwise agreed, the provisions in accordance with class B2 of EN 10163-2 are applicable.


    Tensile test and impact tests are carried out according to the relevant standards. Unless otherwise agreed, the impact test will be performed at -50 °C on transverse test pieces.


    Unless otherwise agreed, the tolerances for the thickness in accordance with class B of EN 10029 are applicable.