Materials & grades
DC04 (1.0338) / ASTM A1008 DDS / IS 513 CR3 / JIS SPCE cold-rolled sheet
DC04 (1.0338) is the deep-drawing cold-rolled low-carbon steel sheet of EN 10130, the usual choice for automotive and appliance pressings. Its nearest names are ASTM A1008 DDS, IS 513 CR3 (DD) and JIS G 3141 SPCE.
Names by standard
What it is called in each region
| Region | System | Designation | תקן | Match |
|---|---|---|---|---|
| USA | ASTM A1008 | DDSDeep drawing steel, carbon 0.06 % maximum. Typical yield 115–200 MPa and r-bar 1.4–1.8, lower in yield than DC04's 210 MPa limit. | ASTM A1008/A1008M | Closest equivalent |
| ASTM (legacy) | A620 DQSKOld drawing-quality special-killed designation that ArcelorMittal lists against DC04. A620 has been replaced by A1008. | ASTM A620 | Closest equivalent | |
| UK | BS EN 10130 | DC04The UK adopts the European standard. | BS EN 10130 | Same material |
| BS 1449 Part 1 (legacy) | CR1Withdrawn. A cross-reference table pairs DC04 with CR1, the deep-drawing grade in UK trade usage. Do not confuse with IS 513 CR1, which is commercial quality. | BS 1449-1 | Closest equivalent | |
| EU | EN 10027-1 name | DC04 | EN 10130 | Same material |
| EN 10027-2 number | 1.0338 | EN 10130 | Same material | |
| EN 10130:1991 (legacy) | FeP04Superseded designation of the 1991 edition. | EN 10130:1991 | Equivalent | |
| DIN 1623 (legacy) | St 14Superseded German name. | DIN 1623-1 | Equivalent | |
| הודו | IS 513 | CR3 (DD, deep drawing)From IS 513:2008. Yield 220 MPa maximum and tensile 350 MPa maximum; A80 minimum 34 % against 38 % for DC04, and no r or n requirement. | IS 513 | Closest equivalent |
| IS 513 (pre-2008) | DD (deep drawn quality)Old name for CR3. | IS 513 | Closest equivalent | |
| Japan | JIS G 3141 | SPCEDeep drawing quality. Carbon 0.08 % and phosphorus 0.030 % maximum as for DC04; manganese 0.45 % against 0.40 %. Elongation of 41 % at 1.0–1.6 mm. | JIS G 3141 | Equivalent |
On equivalence
- DC04, DDS, CR3 and SPCE all target deep-drawing quality but are not identical. DC04 sits between ASTM DS and DDS in strength: its 210 MPa yield limit is above the DDS typical range (115–200 MPa).
- IS 513 CR3 gives A80 of 34 % against 38 % for DC04 and has no r or n requirement, so deep draws should be validated before substituting.
- SPCE is the closest in chemistry (C 0.08 %, P 0.030 %, S 0.030 %). Its yield limit of 220 MPa is informative and its elongation of 41 % at 1.0–1.6 mm is a little above DC04's.
- ASTM A1008 gives only typical properties for DDS, so there is no mandatory mechanical match to EN 10130.
- In BS 1449 usage CR1 is DC04, but IS 513 CR1 is commercial quality. The name alone does not identify the grade.
Chemical composition
Composition limits, mass %
| Element | DDS, heat analysisUSA · ASTM A1008/A1008M | DC04 (1.0338), ladle analysisEU · EN 10130 | CR3 deep drawingהודו · IS 513:2008 | SPCEJapan · JIS G 3141:2011 |
|---|---|---|---|---|
| C | ≤0.06 | ≤0.08 | ≤0.10 | ≤0.08 |
| Mn | ≤0.50 | ≤0.40 | ≤0.45 | ≤0.45 |
| P | ≤0.020 | ≤0.030 | ≤0.025 | ≤0.030 |
| S | ≤0.020 | ≤0.030 | ≤0.030 | ≤0.030 |
| Cr | ≤0.15 | — | — | — |
| Ni | ≤0.20 | — | — | — |
| Mo | ≤0.06 | — | — | — |
| Cu | ≤0.20 | — | — | — |
| 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 DC04)Specified, transverse test, nominal thickness 0.7–2 mm; yield is a range; A80 minimum; r90 at least 1.6 for 0.5–2 mm (1.4 for 2–3 mm); n90 at least 0.180EN 10130 as tabulated by ArcelorMittal, Tata Steel Nederland and Roy Mech | 270–350 MPa39–51 ksi | 140–210 MPa20–30 ksi | ≥38 % | — |
| Cold rolled, annealed and skin-passed (EN 10130 DC04)Specified, transverse test, 0.5–0.7 mm; A80 minimumEN 10130 as tabulated by ArcelorMittal | 270–350 MPa39–51 ksi | 140–230 MPa20–33 ksi | ≥36 % | — |
| Cold rolled, annealed and skin-passed (EN 10130 DC04)Specified, transverse test, 0.3–0.5 mm; A80 minimumEN 10130 as tabulated by ArcelorMittal | 270–350 MPa39–51 ksi | 140–250 MPa20–36 ksi | ≥34 % | — |
| Cold rolled, typical range (ASTM A1008 DDS)Typical and non-mandatory; longitudinal test; elongation in 50 mm; r-bar 1.4–1.8, n 0.20–0.25ASTM A1008/A1008M, Table 3 | — | 115–200 MPa17–29 ksi | ≥38 % | — |
| Cold rolled, annealed and skin-passed (IS 513 CR3)Specified, 0.6 mm and over (elongation 1 point less up to 0.6 mm); elongation Lo = 80 mm; hardness 57 HRB maximumIS 513:2008 with Amendment 1, Tables 3 and 4 | ≤350 MPa≤51 ksi | ≤220 MPa≤32 ksi | ≥34 % | ≤57 HRB |
| Cold rolled, standard temper (JIS SPCE)Specified, 1.0–1.6 mm, No. 5 test piece along rolling direction; elongation is 32 % at 0.25–0.30 mm up to 43 % at 2.5 mm and over, 2 points less if bright finish; yield limit is informative onlyJIS G 3141:2011, Table 5 | ≥270 MPa≥39 ksi | ≤220 MPa≤32 ksi | ≥41 % | — |
In practice
Behaviour, heat treatment and uses
Characteristics
- Aluminium-killed low-carbon steel (C 0.08 % maximum) with guaranteed r90 of 1.6 and n90 of 0.18, which gives good deep-drawing and stretch-forming behaviour.
- Yield strength of 140–210 MPa, tensile strength of 270–350 MPa and A80 of at least 38 % 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. Ageing is controlled for six months, not indefinitely; DC06, the stabilised IF grade, has no such time limit.
- 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 DC04+ZE (electrolytic zinc, EN 10152) and as DX54D 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.
שימושים אופייניים
- Automotive inner panels, brackets and structural pressings of moderate depth
- Appliance housings, drums and drawn cases
- Deep-drawn containers and cups
- Pressed parts that are later painted or electroplated
- Complex stampings where DC03 shows splitting
Sheet and strip
Similar grades compared
| דרגה | C % | Mn % | Cr % | Ni % | Tensile, first listed condition |
|---|---|---|---|---|---|
| DC04 / SPCE | ≤0.06 | ≤0.50 | ≤0.15 | ≤0.20 | 270–350 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 |
| DC05 / SPCF | ≤0.02 | ≤0.40 | ≤0.15 | ≤0.10 | 270–330 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.
תשובות לשאלות
Common questions
What is the equivalent of DC04?
The closest equivalents are ASTM A1008 DDS, IS 513 CR3 (DD) and JIS G 3141 SPCE. The old German name is St 14 and the EN 10130:1991 name is FeP04.
Is SPCE the same as DC04?
SPCE is the nearest JIS grade and has almost the same carbon, phosphorus and sulphur limits. Its yield limit (220 MPa) and elongation (41 % at 1.0–1.6 mm) differ slightly, and JIS sets no r90 or n90 for it.
What is the difference between DC04 and DC05?
DC05 has lower carbon (0.06 % maximum), a yield limit of 180 MPa against 210 MPa, A80 of 40 % against 38 %, r90 of 1.9 against 1.6 and n90 of 0.20 against 0.18. It suits more severe draws.
Is IS 513 CR3 equivalent to DC04?
It is the usual Indian pairing but not the same specification. CR3 allows more carbon (0.10 %) and requires only 34 % elongation, against 0.08 % and 38 % for DC04.
Is DC04 non-ageing?
Not permanently. EN 10130 guarantees its properties and a surface free of stretcher-strain marks for six months from dispatch. After that, ageing can bring back yield-point elongation. DC06 is the stabilised grade.
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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: DC04 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.
- Takasago Tekko: cold rolled steel strips (JIS G 3141 values) — SPCC, SPCD and SPCE composition and elongation as listed by a Japanese strip maker.
- Gavex: cold-rolled steel correspondence norms — EN 10130:1991 FeP names, DIN 1623 St names and BS 1449 CR grades against DC01 to DC05.
- 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.