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Corona SteelGegründet 1955
Resources/Materials & grades/DC06 / SPCG

Materials & grades

DC06 (1.0873) / ASTM A1008 EDDS / IS 513 CR5 (IF) / JIS SPCG cold-rolled sheet

DC06 (1.0873) is the titanium-stabilised interstitial-free (IF) cold-rolled steel sheet of EN 10130, made for the most severe deep draws without stretcher-strain marks. Its nearest names are ASTM A1008 EDDS, IS 513 CR5 and JIS G 3141 SPCG.

Names by standard

What it is called in each region

RegionSystemDesignationNormMatch
USAASTM A1008EDDSExtra deep drawing steel is stabilised, carbon 0.02 % maximum, as DC06 is. Typical yield 105–170 MPa and r-bar 1.7–2.1; DC06 guarantees r90 of 2.1.ASTM A1008/A1008MClosest equivalent
UKBS EN 10130DC06The UK adopts the European standard. No BS 1449 grade was paired with DC06 in the cross-references found.BS EN 10130Same material
EUEN 10027-1 nameDC06EN 10130Same material
EN 10027-2 number1.0873Classified as an alloy quality steel because of the titanium or niobium stabilisation.EN 10130Same material
EN 10130:1991 (legacy)FeP06Superseded designation of the 1991 edition.EN 10130:1991Equivalent
SEW 095 (legacy)IF 18Superseded German IF-steel name that Salzgitter shows beside DC06.SEW 095Equivalent
IndienIS 513CR5 (IF, stabilised interstitial free)From IS 513:2008. Carbon limit of 0.06 % is much higher than DC06's 0.02 %; yield 190 MPa maximum, A80 38 % minimum, r-bar 1.7 and n 0.22.IS 513Closest equivalent
JapanJIS G 3141SPCGNon-ageing extra deep drawing quality, carbon 0.02 % maximum as for DC06. Yield limit 190 MPa is informative; r-bar is only 1.5 minimum (0.5–1.0 mm) against r90 2.1 for DC06.JIS G 3141Closest equivalent

On equivalence

  • DC06 has no exact equivalent. ASTM A1008 EDDS and JIS SPCG both specify carbon ≤0.02 % and non-ageing steel, so they are the nearest chemistry matches.
  • IS 513 CR5 is the IF grade but allows 0.06 % carbon against 0.02 % for DC06 and requires only A80 38 % and r-bar 1.7, so it is a looser grade.
  • SPCG's r-bar is only 1.4–1.5 minimum and it has no n requirement; DC06 guarantees r90 of 2.1 and n90 of 0.220.
  • ASTM A1008 gives only typical properties for EDDS, so there is no mandatory mechanical match to EN 10130.
  • Sources disagree on the yield lower limit: Roy Mech gives 120–170 MPa, Salzgitter gives up to 180 MPa and one distributor page gives 120 MPa as a minimum. Order to the maximum and check the mill certificate.

Chemical composition

Composition limits, mass %

ElementEDDS, heat analysisUSA · ASTM A1008/A1008MDC06 (1.0873), ladle analysisEU · EN 10130CR5 extra deep drawing, stabilised IFIndien · IS 513:2008SPCGJapan · JIS G 3141:2011
C≤0.02≤0.02≤0.06≤0.02
Mn≤0.40≤0.25≤0.25≤0.25
P≤0.020≤0.020≤0.020≤0.020
S≤0.020≤0.020≤0.020≤0.020
Cr≤0.15———
Ni≤0.10———
Mo≤0.03———
Cu≤0.10———
N——≤0.007—
Al≥0.01———
Ti≤0.15 (stabiliser option)≤0.30 (may be replaced by Nb)——

Mechanical properties

Strength and hardness

ConditionTensile strengthYield strengthElongationHardness
Cold rolled, annealed and skin-passed (EN 10130 DC06)Specified, transverse test, nominal thickness 0.7–2 mm; yield is a range; A80 minimum; r90 at least 2.1; n90 at least 0.220EN 10130 as tabulated by ArcelorMittal, Tata Steel Nederland and Roy Mech270–330 MPa39–48 ksi120–170 MPa17–25 ksi≥41 %—
Cold rolled, annealed and skin-passed (EN 10130 DC06)Specified, transverse test, 0.5–0.7 mm; A80 minimum; yield limit raised by 20 MPa and A80 lowered by 2 under the EN 10130 thin-gauge ruleEN 10130 as tabulated by ArcelorMittal270–330 MPa39–48 ksi120–190 MPa17–28 ksi≥39 %—
Cold rolled, annealed and skin-passed (EN 10130 DC06)Specified, transverse test, 0.3–0.5 mm; A80 minimum; yield limit raised by 40 MPa and A80 lowered by 4 under the EN 10130 thin-gauge rule; r90 and n90 apply from 0.5 mm onlyEN 10130 as tabulated by ArcelorMittal270–330 MPa39–48 ksi120–210 MPa17–30 ksi≥37 %—
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 CR5)Specified, 0.6 mm and over (elongation 1 point less up to 0.6 mm); elongation Lo = 80 mm; r-bar 1.7 and n 0.22 minimum; values apply for 6 months from dispatchIS 513:2008 with Amendment 1, Tables 3 and 4≤350 MPa≤51 ksi≤190 MPa≤28 ksi≥38 %—
Cold rolled, standard temper (JIS SPCG)Specified, 1.0–1.6 mm, No. 5 test piece along rolling direction; elongation is 42 % at 0.40–0.60 mm up to 46 % at 1.6–2.5 mm, 2 points less if bright finish; yield limit is informative only; r-bar 1.5 minimum for 0.5–1.0 mm and 1.4 for 1.0–1.6 mm; non-ageing for 6 monthsJIS G 3141:2011, Tables 5 and 6≥270 MPa≥39 ksi≤190 MPa≤28 ksi≥45 %—

In practice

Behaviour, heat treatment and uses

Characteristics

  • Titanium-stabilised (or niobium-stabilised) interstitial-free steel with carbon of 0.02 % maximum; the stabilisers fix carbon and nitrogen, so the steel is non-ageing and forms without stretcher-strain marks.
  • Guaranteed r90 of 2.1 and n90 of 0.220, the best forming values in the standard apart from DC07; yield strength is limited to 170 MPa and A80 is at least 41 %.
  • Tensile strength of 270–330 MPa. Mechanical properties are valid for six months from dispatch, but there is no limit on stretcher-strain behaviour.
  • Salzgitter's DC06 data sheet gives its own guaranteed values: yield up to 180 MPa, tensile 270–350 MPa, A80 at least 38 %, r90 at least 1.8 and n at least 0.22. Mill sheets can differ from the standard table.
  • 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-gauge adjustments in EN 10130 apply to yield (+20 MPa from 0.5 to 0.7 mm, +40 MPa at 0.5 mm and below) and A80 (−2 and −4 points). r90 and n90 apply from 0.5 mm, and r90 falls by 0.2 above 2 mm.
  • Welds readily by resistance spot and arc processes because of the very low carbon content.
  • Available as DC06+ZE (electrolytic zinc, EN 10152) and as DX57D 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.
  • Stabilisation with titanium or niobium removes the yield point after annealing, so skin passing is for surface and flatness, not for suppressing ageing.
  • Preheat is not normally needed when welding thin sheet; stress relieving is not required.

Typische Anwendungen

  • Automotive outer skin panels and highly stressed deep-drawn parts
  • Complex body structural components with large draw ratios
  • Deep-drawn appliance and sanitary parts, tubs and housings
  • Parts for painted show surfaces where stretcher-strain lines are unacceptable
  • Pressings with very tight radii where DC05 splits

Sheet and strip

Similar grades compared

GüteklasseC %Mn %Cr %Ni %Tensile, first listed condition
DC06 / SPCG≤0.02≤0.40≤0.15≤0.10270–330 MPa
DC01 / SPCC0.02–0.15≤0.60≤0.15≤0.20270–410 MPa
DC03 / SPCD0.02–0.08≤0.50≤0.15≤0.20270–370 MPa
DC04 / SPCE≤0.06≤0.50≤0.15≤0.20270–350 MPa
DC05 / SPCF≤0.02≤0.40≤0.15≤0.10270–330 MPa
DD11 / SPHC≤0.15≤0.60≤0.15≤0.20≤440 MPa
DD12 / SPHD0.02–0.08≤0.45——≤420 MPa
DD13 / SPHE≤0.08≤0.40——≤400 MPa
S355MC≤0.23≤1.35≤0.15≤0.20430–550 MPa
DX51D / 1.02260.02–0.15≤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.

Fragen und Antworten

Common questions

What is the equivalent of DC06?

The closest equivalents are ASTM A1008 EDDS, IS 513 CR5 (IF) and JIS G 3141 SPCG. None is exact. The EN 10130:1991 name is FeP06 and the old German IF name is IF 18.

What is DC06 steel?

DC06 (1.0873) is interstitial-free cold-rolled steel to EN 10130, stabilised with titanium or niobium so that carbon and nitrogen are fixed. It is non-ageing, soft and highly formable, which is why it is used for severe deep draws and outer car panels.

What is the difference between DC05 and DC06?

DC06 is an IF steel with carbon of 0.02 % maximum and no stretcher-strain limit; DC05 is aluminium killed with up to 0.06 % carbon and a six-month period. DC06 also guarantees higher r90 (2.1 against 1.9) and n90 (0.22 against 0.20).

Is IS 513 CR5 the same as DC06?

CR5 is the Indian stabilised IF grade and the usual pairing, but its limits are looser. It allows 0.06 % carbon, a 190 MPa yield limit and 38 % elongation, against 0.02 %, 170 MPa and 41 % for DC06.

Is DC06 the same as SPCG?

SPCG is the nearest JIS grade. Both have carbon of 0.02 % maximum and manganese of 0.25 % maximum, but SPCG guarantees r-bar of only 1.4–1.5 and no n value, and its yield limit of 190 MPa is informative.

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Keep reading

DC05 / SPCFDC05 (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.DC04 / SPCEDC04 (1.0338) is the deep-drawing cold-rolled low-carbon steel sheet of EN 10130, the usual choice for automotive and appliance pressings.DC03 / SPCDDC03 (1.0347) is the drawing-quality cold-rolled low-carbon steel sheet of EN 10130, used for pressed and drawn parts of moderate depth.DX53D / 1.0355DX53D+Z (1.0355) is the deep-drawing quality of hot-dip galvanized steel in EN 10346, with a yield of 140–260 MPa, tensile strength of 270–380 MPa and at least 30 % elongation (A80).AnnealingAnnealing heats steel to a set temperature, holds it and cools it slowly to make it softer, more ductile and easier to machine or cold form.EN 10027 names and numbersEuropean steels carry two identifiers under EN 10027: a steel name (Part 1) such as S235JR, C45 or 42CrMo4 that describes the steel's use or chemistry, and a material number (Part 2) such as 1.0503 or 1.7225.JIS steel designationsJapanese JIS steel symbols start with S for steel and add letters for the steel family or its use, but the number means different things in different standards.

References

Sources

  1. Tata Steel Nederland: cold rolled forming steel (EN 10130) — DC01, DC03 and DC04 limits, thickness adjustments, surface qualities and finishes (Ra).
  2. 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.
  3. Roy Mech: BS EN 10130 information — EN 10130:2006 steel numbers, yield range, tensile range, elongation and composition.
  4. Modulus Metal: EN 10130 standard guide — Grade table with r90, n90, thickness adjustments, ageing periods and surface finish symbols.
  5. Salzgitter Flachstahl: DC06 data sheet (mild steels for cold forming) — Mill-guaranteed transverse properties, heat analysis and legacy DIN name.
  6. 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.
  7. 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.
  8. JIS G 3141:2011 Cold-reduced carbon steel sheets and strip (JISF English translation) — SPCC to SPCG composition, yield, tensile, elongation and r values.
  9. Nippon Steel Slovakia (formerly U. S. Steel Košice): drawing steels, EN 10130 DC01 to DC06 table
  10. Farnell / Multicomp material declaration: cold rolled coils and sheets EN 10130 (2015)
  11. Kobelco: cold-rolled steel sheet product guide (JIS G 3141 SPCD to SPCG elongation, 6-month non-ageing note)
  12. SSAB Form 06: EN 10130 DC06 data and thickness notes

Values summarize published limits and typical data. The governing standard and the current edition control; check them before specifying.