Materials & grades
DC05 (1.0312) / ASTM A1008 EDDS / IS 513 CR4 / JIS SPCF cold-rolled sheet
DC05 (1.0312) is the extra-deep-drawing cold-rolled low-carbon steel sheet of EN 10130, for the most demanding pressings short of IF steel. Its nearest names are ASTM A1008 EDDS, IS 513 CR4 (EDD) and JIS G 3141 SPCF.
Names by standard
What it is called in each region
| Region | System | Designation | Norma | Match |
|---|---|---|---|---|
| USA | ASTM A1008 | EDDSExtra deep drawing steel is stabilised (carbon 0.02 % maximum). DC05 is aluminium killed with carbon up to 0.06 %, so the match is by forming class, not chemistry. | ASTM A1008/A1008M | Closest equivalent |
| UK | BS EN 10130 | DC05The UK adopts the European standard. No BS 1449 grade was paired with DC05 in the cross-references found. | BS EN 10130 | Same material |
| EU | EN 10027-1 name | DC05 | EN 10130 | Same material |
| EN 10027-2 number | 1.0312 | EN 10130 | Same material | |
| EN 10130:1991 (legacy) | FeP05Superseded designation of the 1991 edition. | EN 10130:1991 | Equivalent | |
| DIN 1623 (legacy) | St 15Superseded German name, still shown by Salzgitter beside DC05. | DIN 1623-1 | Equivalent | |
| India | IS 513 | CR4 (EDD, extra deep drawing)From IS 513:2008. Aluminium killed and non-ageing, carbon 0.08 % maximum; yield 210 MPa maximum and A80 36 % minimum against 180 MPa and 40 % for DC05. | IS 513 | Closest equivalent |
| IS 513 (pre-2008) | EDD (extra deep drawn quality)Old name for CR4. | IS 513 | Closest equivalent | |
| Japan | JIS G 3141 | SPCFNon-ageing deep drawing quality. Carbon 0.06 % maximum as for DC05; yield limit 210 MPa is informative and there is no r or n requirement. | JIS G 3141 | Closest equivalent |
On equivalence
- DC05 has no exact equivalent. ASTM A1008 EDDS is stabilised with carbon ≤0.02 %, while DC05 is aluminium killed with carbon ≤0.06 %; the two share a forming class, not a chemistry.
- IS 513 CR4 has a higher yield limit (210 MPa against 180 MPa), a lower A80 minimum (36 % against 40 %) and r-bar only by agreement, so it is a looser grade than DC05.
- SPCF has the same carbon limit (0.06 %) but a larger manganese limit (0.45 %) and no r or n requirement; its 210 MPa yield limit is informative only.
- Sources pair DC05 with SPCF and EDDS loosely. ArcelorMittal lists no ASTM or JIS equivalent for DC05, so treat these pairings as closest, not exact.
- DC05 sits between DC04 and DC06. Use DC06 when a non-ageing, stabilised IF steel is required.
Chemical composition
Composition limits, mass %
| Element | EDDS, heat analysisUSA · ASTM A1008/A1008M | DC05 (1.0312), ladle analysisEU · EN 10130 | CR4 extra deep drawing, Al killed non-ageingIndia · IS 513:2008 | SPCFJapan · JIS G 3141:2011 |
|---|---|---|---|---|
| C | ≤0.02 | ≤0.06 | ≤0.08 | ≤0.06 |
| Mn | ≤0.40 | ≤0.35 | ≤0.40 | ≤0.45 |
| P | ≤0.020 | ≤0.025 | ≤0.020 | ≤0.030 |
| S | ≤0.020 | ≤0.025 | ≤0.030 | ≤0.030 |
| Cr | ≤0.15 | — | — | — |
| Ni | ≤0.10 | — | — | — |
| Mo | ≤0.03 | — | — | — |
| Cu | ≤0.10 | — | — | — |
| N | — | — | ≤0.007 | — |
| Al | ≥0.01 | — | — | — |
Mechanical properties
Strength and hardness
| Condition | Tensile strength | Yield strength | Elongation | Hardness |
|---|---|---|---|---|
| Cold rolled, annealed and skin-passed (EN 10130 DC05)Specified, transverse test, nominal thickness 0.7–2 mm; yield is a range; A80 minimum; r90 at least 1.9 for 0.5–2 mm (1.7 for 2–3 mm); n90 at least 0.200EN 10130 as tabulated by ArcelorMittal, Tata Steel Nederland and Roy Mech | 270–330 MPa39–48 ksi | 140–180 MPa20–26 ksi | ≥40 % | — |
| Cold rolled, annealed and skin-passed (EN 10130 DC05)Specified, transverse test, 0.5–0.7 mm; A80 minimumEN 10130 as tabulated by ArcelorMittal | 270–330 MPa39–48 ksi | 140–200 MPa20–29 ksi | ≥38 % | — |
| Cold rolled, annealed and skin-passed (EN 10130 DC05)Specified, transverse test, 0.3–0.5 mm; A80 minimumEN 10130 as tabulated by ArcelorMittal | 270–330 MPa39–48 ksi | 140–220 MPa20–32 ksi | ≥36 % | — |
| Cold rolled, typical range (ASTM A1008 EDDS)Typical and non-mandatory; longitudinal test; elongation in 50 mm; r-bar 1.7–2.1, n 0.23–0.27ASTM A1008/A1008M, Table 3 | — | 105–170 MPa15–25 ksi | ≥40 % | — |
| Cold rolled, annealed and skin-passed (IS 513 CR4)Specified, 0.6 mm and over (elongation 1 point less up to 0.6 mm); elongation Lo = 80 mm; hardness 50 HRB maximum; r-bar only by agreement; values apply for 6 months from dispatchIS 513:2008 with Amendment 1, Tables 3 and 4 | ≤350 MPa≤51 ksi | ≤210 MPa≤30 ksi | ≥36 % | ≤50 HRB |
| Cold rolled, standard temper (JIS SPCF)Specified, 1.0–1.6 mm, No. 5 test piece along rolling direction; elongation is 40 % at 0.40–0.60 mm up to 45 % at 2.5 mm and over, 2 points less if bright finish; yield limit is informative only; non-ageing for 6 monthsJIS G 3141:2011, Table 5 | ≥270 MPa≥39 ksi | ≤210 MPa≤30 ksi | ≥43 % | — |
In practice
Behaviour, heat treatment and uses
Characteristics
- Aluminium-killed low-carbon steel (C 0.06 % maximum) with guaranteed r90 of 1.9 and n90 of 0.20, the highest forming class of the aluminium-killed EN 10130 grades.
- Yield strength of 140–180 MPa, tensile strength of 270–330 MPa and A80 of at least 40 % at nominal thickness.
- Mechanical properties are valid for six months from dispatch, and surface quality A and B are guaranteed free of stretcher-strain marks for the same period.
- May contain boron or titanium. For the deepest draws and non-ageing behaviour without a time limit, step up to DC06 (IF steel).
- EN 10130 defines two surface qualities. Quality A allows small defects that do not impair forming or coating (pores, light scratches, slight dents, slight colour change). Quality B requires the better side to be free of defects that would show through high-grade paint or electroplating, with the other side at least quality A; B is for skin-passed product only and not every size is offered in it.
- Skin-passed sheet can be ordered with a roughness finish: bright b (Ra up to 0.4 µm), semi-bright g (up to 0.9 µm), normal m (0.6–1.9 µm, the default) or rough r (above 1.6 µm). The finish cannot be specified for non-skin-passed product.
- Thin gauges: yield strength limit rises by 20 MPa from 0.5 to 0.7 mm and by 40 MPa at 0.5 mm and below, and minimum A80 falls by 2 and 4 points. r90 and n90 apply from 0.5 mm; above 2 mm r90 falls by 0.2.
- Welds readily by resistance spot and arc processes because of the low carbon and manganese content.
- Available as DC05+ZE (electrolytic zinc, EN 10152) and as DX56D hot-dip galvanized (EN 10346); the coated grades have their own standards.
Heat treatment
- Supplied cold rolled, then annealed (batch or continuous) and skin-passed. It is a non-hardening steel; quenching adds nothing.
- Skin passing sets the surface finish and suppresses stretcher-strain lines. Form within the six-month property period before ageing brings the yield point back.
- Preheat is not normally needed when welding thin sheet; stress relieving is not required.
Usos habituales
- Complex automotive inner panels and structural pressings
- Deep-drawn appliance parts, drums and housings
- Parts with tight corner radii or large draw ratios
- Pressed parts that are later painted or electroplated
- Drawn components where DC04 shows wrinkling or splitting
Sheet and strip
Similar grades compared
| Grado | C % | Mn % | Cr % | Ni % | Tensile, first listed condition |
|---|---|---|---|---|---|
| DC05 / SPCF | ≤0.02 | ≤0.40 | ≤0.15 | ≤0.10 | 270–330 MPa |
| DC01 / SPCC | 0.02–0.15 | ≤0.60 | ≤0.15 | ≤0.20 | 270–410 MPa |
| DC03 / SPCD | 0.02–0.08 | ≤0.50 | ≤0.15 | ≤0.20 | 270–370 MPa |
| DC04 / SPCE | ≤0.06 | ≤0.50 | ≤0.15 | ≤0.20 | 270–350 MPa |
| DC06 / SPCG | ≤0.02 | ≤0.40 | ≤0.15 | ≤0.10 | 270–330 MPa |
| DD11 / SPHC | ≤0.15 | ≤0.60 | ≤0.15 | ≤0.20 | ≤440 MPa |
| DD12 / SPHD | 0.02–0.08 | ≤0.45 | — | — | ≤420 MPa |
| DD13 / SPHE | ≤0.08 | ≤0.40 | — | — | ≤400 MPa |
| S355MC | ≤0.23 | ≤1.35 | ≤0.15 | ≤0.20 | 430–550 MPa |
| DX51D / 1.0226 | 0.02–0.15 | ≤0.60 | — | — | 270–500 MPa |
Composition from the US standard where one exists, otherwise the first standard listed on each grade's page. Strength conditions differ between grades; open a grade for its full table.
Preguntas resueltas
Common questions
What is the equivalent of DC05?
The closest equivalents are ASTM A1008 EDDS, IS 513 CR4 (EDD) and JIS G 3141 SPCF. None is exact. The old German name is St 15 and the EN 10130:1991 name is FeP05.
What is the difference between DC05 and DC06?
DC06 is a titanium-stabilised IF steel with carbon of 0.02 % maximum, A80 of 41 %, r90 of 2.1 and n90 of 0.22, and no stretcher-strain limit. DC05 is aluminium killed with carbon up to 0.06 %, A80 of 40 %, r90 of 1.9 and a six-month property period.
Is DC05 an IF steel?
No. EN 10130 requires titanium stabilisation only for DC06 and DC07. DC05 is aluminium-killed low-carbon steel with a guaranteed six-month property period.
Is IS 513 CR4 the same as DC05?
CR4 is the usual Indian pairing but it is not the same. CR4 allows a 210 MPa yield limit and requires 36 % elongation, against 180 MPa and 40 % for DC05, and has no mandatory r90.
What are the r90 and n90 values of DC05?
EN 10130 requires r90 of at least 1.9 (1.7 above 2 mm) and n90 of at least 0.200 for thickness from 0.5 mm.
From the Corona catalog
Need a part made to this specification?
Send the drawing, the material or grade, the finish, the quantity and the delivery country. The team reviews the requirement and the manufacturing route.
Iniciar una consultaKeep reading
Related references
References
Sources
- Tata Steel Nederland: cold rolled forming steel (EN 10130) — DC01, DC03 and DC04 limits, thickness adjustments, surface qualities and finishes (Ra).
- ArcelorMittal: B10 steels for cold forming (EN 10130 grades) — Yield, tensile, A80, r90 and n90 by thickness band; ageing guarantee; ASTM and JIS cross-references.
- Roy Mech: BS EN 10130 information — EN 10130:2006 steel numbers, yield range, tensile range, elongation and composition.
- Modulus Metal: EN 10130 standard guide — Grade table with r90, n90, thickness adjustments, ageing periods and surface finish symbols.
- Salzgitter Flachstahl: DC05 data sheet (mild steels for cold forming) — Mill-guaranteed transverse properties, heat analysis and legacy DIN name.
- ASTM A1008/A1008M-18 cold-rolled sheet (copy hosted by US Frame Factory) — Table 1 chemical composition and Table 3 typical (non-mandatory) mechanical properties for CS, DS, DDS and EDDS.
- IS 513:2008 Cold reduced low carbon steel sheet and strip, with Amendment 1 (BIS public copy) — CR designations, composition, mechanical properties and the old O/D/DD/EDD correlation. Current edition is IS 513 (Part 1):2016, which was not available to read.
- JIS G 3141:2011 Cold-reduced carbon steel sheets and strip (JISF English translation) — SPCC to SPCG composition, yield, tensile, elongation and r values.
- Nippon Steel Slovakia (formerly U. S. Steel Košice): drawing steels, EN 10130 DC01 to DC06 table
- Farnell / Multicomp material declaration: cold rolled coils and sheets EN 10130 (2015)
- Kobelco: cold-rolled steel sheet product guide (JIS G 3141 SPCD to SPCG elongation, 6-month non-ageing note)
Values summarize published limits and typical data. The governing standard and the current edition control; check them before specifying.