EN DC01 sheet steel

Cold-rolled forming sheet: thickness-dependent mechanical limits, surface and ageing requirements, and procurement boundaries.

Tags: materials, steel, sheet-metal, cold-forming

Reviewed 2026-11-01Read Markdown

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Identity and specification

At 0.60 mm, Tata's skin-passed DC01 row for over 0.50 through 0.70 mm gives 300 MPa maximum yield and 26% minimum A80, tested transverse to rolling. A80 uses an 80 mm initial gauge length. The yield value refers to lower yield strength, or 0.2% proof strength if there is no definite yield point. Tata DC01 thickness footnotes

DC01 is a low-carbon cold-rolled flat-product grade for cold forming under EN 10130:2006, identified as material number 1.0330 in ArcelorMittal's catalogue. Its intended role is forming sheet, not a promise of a particular finished-part load capacity. ArcelorMittal, cold-forming steels

BSI lists BS EN 10130:2006 as the current release. DIN lists the German adoption DIN EN 10130:2007-02, with an April 2007 correction. These national publication dates do not identify different “2006 versus 2007” DC01 alloy families. Record the standard and applicable corrections on the order. BSI standard history; DIN publication record

The grade alone does not settle sheet versus slit strip, dimensions, tolerances, surface quality, roughness, oiling, inspection documents or storage interval. Define those requirements separately. A commercial cross-reference to another country's forming grade is a sourcing lead, not sufficient authority for a substitution. Tata explicitly warns that its cross-standard comparisons are not necessarily equivalent grades. Tata Steel, forming steels

Mechanical values: read the thickness footnotes

Tata publishes these transverse-to-rolling-direction values for its skin-passed DC01:

Nominal thickness	Maximum yield strength	Tensile strength	Minimum elongation, A80
Above 0.7 mm	280 MPa	270–410 MPa	28%
Above 0.5 through 0.7 mm	300 MPa	270–410 MPa	26%
0.5 mm and below	320 MPa	270–410 MPa	24%

These rows apply within the supplier's available product range. A80 uses an 80 mm initial gauge length. Yield means 0.2% proof strength where there is no definite yield point, otherwise lower yield strength. The supplier gives no numerical DC01 r90 or n90 guarantee in this table. Tata DC01 properties and footnotes

For demanding drawing, obtain grade- and gauge-specific r- and n-values and qualify the actual blank, die and lubricant.

Chemistry, supply condition and ageing

SSAB's named DC01 Zero product lists ladle-analysis maxima of C 0.12%, Mn 0.60%, P 0.045% and S 0.045%. Its datasheet limits the 280 MPa upper yield value to eight days from product availability; it allows a 140 MPa lower yield assumption for design purposes. This is not a requirement that every delivered certificate report yield between 140 and 280 MPa indefinitely. SSAB DC01 Zero, datasheet 2461

For an order with a long storage or transport interval, establish what property guarantees remain applicable when forming occurs. Clarify the starting point of the guarantee with the supplier and retain the relevant dates. Do not interpret an eight-day property qualification as a universal eight-day shelf life or proof that older stock is unusable. Conversely, passing an incoming tensile test does not qualify all later production conditions.

Keep the named product separate from the generic grade. SSAB's cited sheet offers uncoated DC01 Zero at 0.40–3.00 mm thickness and widths up to 1530 mm. Those dimensions describe this product, not EN 10130's entire scope or another mill's capability. Thickness tolerances refer to EN 10131, with narrower tolerances by agreement. SSAB datasheet

Surface and downstream processing

Surface quality and texture are different order attributes. Tata describes quality A as permitting defects that do not impair forming or coating application; quality B controls the better side for high-quality painted or electrolytically coated appearance. Not every size is available in B. Identify the exposed and inspected side before blanking or assembly. Tata surface aspects

A painted enclosure can therefore need more than “DC01, 1 mm.” Define the cosmetic face and acceptable marks, then coordinate cleaning, pretreatment and coating trials with the supplied oil and texture. An uncoated forming-sheet designation is not a galvanized coating specification. For joining, qualify the actual joint and surface condition rather than assigning universal welding settings.

SSAB states that its surface treatment provides temporary transport/storage protection and requires dry handling and storage. Oiling is not a specified outdoor corrosion-protection system. SSAB datasheet

Worked interpretation example

Assume a proposed order for 0.60 mm skin-passed Tata DC01, with an 80 mm tensile gauge length. The cited thickness band gives a maximum yield of 300 MPa and minimum A80 of 26%, not the headline 280 MPa and 28% values. An A80 result of 26% corresponds to 80 × 1.26 = 100.8 mm final gauge length after fracture measurement. This is arithmetic on the tensile definition, not a permissible extension of a formed flange. Tata thickness qualifications

Source versions

The SSAB PDF explicitly prints Data sheet 2461, 2025-10-07. Tata and ArcelorMittal are live catalogue pages without an explicit issue date used here. EN 10130's edition is established through BSI/DIN publisher records, rather than inferred from a download filename.