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Resources/Materials & grades/DD13 / SPHE

Materials & grades

DD13 / 1.0335 hot-rolled steel sheet and strip (EN 10111, close to IS 1079 HR3 and JIS SPHE)

DD13 (1.0335) is the deep-drawing grade of EN 10111, a hot-rolled low-carbon strip with the highest elongation below DD14. Its nearest equivalents are IS 1079 HR3 and JIS G 3131 SPHE; ASTM A1011 has no deep-drawing hot-rolled designation, and DS Type B is only a loose match.

Names by standard

What it is called in each region

RegionSystemDesignationStandardMatch
USAASTM A1011DS Type BA1011 offers CS and DS only; there is no hot-rolled DDS designation (DDS exists in ASTM A1008 for cold-rolled sheet). DS Type B is the nearest hot-rolled US grade but is less demanding than DD13.ASTM A1011/A1011MClosest equivalent
UKBS EN 10111DD13The UK uses the European standard.BS EN 10111Same material
EUEN 10027-1 nameDD13EN 10111Same material
EN 10027-2 number1.0335EN 10111Same material
DIN 1614 (legacy)StW 24Superseded DIN 1614 name for DD13 (1.0335), per thyssenkrupp.—Closest equivalent
IndiaIS 1079HR3Deep drawing quality. Tensile maximum 400 MPa and elongation minimum 28 % match DD13 as published by Tata Steel.IS 1079:2017Closest equivalent
JapanJIS G 3131SPHEDeep drawing quality. Adds a 270 MPa minimum tensile strength that EN 10111 does not set.JIS G 3131Closest equivalent

On equivalence

  • No equivalent is identical. DD13, IS 1079 HR3 and JIS SPHE are all deep-drawing hot-rolled grades, but their limits differ.
  • ASTM A1011 has no hot-rolled deep-drawing designation: its drawing steel is DS Type A or B, which is less demanding. The US 'DDS' name belongs to cold-rolled sheet in ASTM A1008, so do not read it across.
  • Tata Steel's chart describes IS 1079 HR1 to HR4 as commercial, drawing, deep drawing and extra deep drawing. HR3 (tensile ≤400 MPa, A ≥28 %) lines up numerically with DD13, and HR4 (≤380 MPa, A ≥31 %) with DD14.
  • The IS 1079 composition limits for HR3 could not be read from a source we could verify.
  • DD13’s legacy DIN name is StW 24 (number 1.0335), as listed on the thyssenkrupp precidur DD13 data sheet.
  • SPHE limits follow the current JIS G 3131 listing (Mycron); one supplier table prints C 0.10, Mn 0.50 and S 0.035.

Chemical composition

Composition limits, mass %

ElementDD13 (1.0335)EU · EN 10111SPHEJapan · JIS G 3131
C≤0.08≤0.08
Mn≤0.40≤0.40
P≤0.030≤0.030
S≤0.030≤0.030

Mechanical properties

Strength and hardness

ConditionTensile strengthYield strengthElongationHardness
Hot rolled (EN 10111 DD13)Specified, thickness under 2 mm; elongation A80 (80 mm gauge)EN 10111 as tabulated by Nippon Steel Slovakia and ArcelorMittal≤400 MPa≤58.0 ksi170–330 MPa24.7–47.9 ksi≥28 %—
Hot rolled (EN 10111 DD13)Specified, thickness 2 to under 3 mm; elongation A80EN 10111 as tabulated by Nippon Steel Slovakia and ArcelorMittal≤400 MPa≤58.0 ksi170–310 MPa24.7–45.0 ksi≥29 %—
Hot rolled (EN 10111 DD13)Specified, thickness 3 to 11 mm; elongation A (5.65√S0 gauge); mill production range is narrower (up to about 8 mm)EN 10111 as tabulated by Nippon Steel Slovakia and ArcelorMittal≤400 MPa≤58.0 ksi170–310 MPa24.7–45.0 ksi≥33 %—
Hot rolled (IS 1079 HR3)Specified; tensile maximum and elongation minimum as published by Tata Steel; no yield limit shown; ordering range 1.6 to 12 mmIS 1079 as published by Tata Steel (Astrum HR3)≤400 MPa≤58.0 ksi—≥28 %—
Hot rolled (JIS G 3131 SPHE)Specified; tensile is a minimum; elongation 27 % at 1.4 to under 1.6 mm, 31 % at 1.6 to under 2.0 mm, 33–37 % from 2.0 to under 4 mm, 39 % at 4 mm and overJIS G 3131 grade table as tabulated by Krakatau POSCO≥270 MPa≥39.2 ksi—27–39 %—

In practice

Behaviour, heat treatment and uses

Characteristics

  • Very low carbon (≤0.08 %) and manganese (≤0.40 %), with phosphorus and sulphur held to 0.030 %: the steel stays soft and ductile for deep drawing.
  • Maximum tensile strength is 400 MPa, 40 MPa below DD11, with 33 % minimum elongation above 3 mm.
  • Readily weldable, and responds well to deep drawing, stretch forming and flanging in hot-rolled gauges.
  • Produced in a narrower thickness range than DD11 and DD12 (mills quote about 1.0 to 8 mm); confirm availability for heavy gauges.

Heat treatment

  • Supplied hot rolled from the coil; no heat treatment is needed for forming.
  • Not hardened; the very low carbon content gives no useful response to quenching.
  • Hot-dip galvanizing or pickling and oiling is applied by agreement.

Typical uses

  • Deep-drawn and stretch-formed parts such as wheel centres and fuel-tank halves
  • Pressed automotive structural and chassis parts with severe forming
  • Appliance and machine housings
  • Cylinders, gas bottles and tank ends

Sheet and strip

Similar grades compared

GradeC %Mn %Cr %Ni %Tensile, first listed condition
DD13 / SPHE≤0.08≤0.40——≤400 MPa
DD11 / SPHC≤0.15≤0.60≤0.15≤0.20≤440 MPa
DD12 / SPHD0.02–0.08≤0.45——≤420 MPa
S355MC≤0.23≤1.35≤0.15≤0.20430–550 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
DC06 / SPCG≤0.02≤0.40≤0.15≤0.10270–330 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.

Questions answered

Common questions

What is the equivalent of DD13 steel?

The nearest equivalents are IS 1079 HR3 and JIS G 3131 SPHE. ASTM A1011 has no hot-rolled deep-drawing grade; DS Type B is the nearest US designation but is less demanding.

Is DD13 the same as SPHE?

They are both deep-drawing hot-rolled grades but not the same specification. SPHE requires a 270 MPa minimum tensile strength; DD13 sets maximum yield (up to 330 MPa) and tensile strength (400 MPa).

What are the DD13 yield and tensile strength?

EN 10111 gives DD13 a yield range of 170–330 MPa under 2 mm and 170–310 MPa from 2 to 11 mm, with tensile strength up to 400 MPa. Minimum elongation is 33 % from 3 mm.

Is DD13 the same as DC04?

No. DC04 (EN 10130) is cold-rolled and thinner, with a finer surface and tighter tolerances. DD13 is hot rolled from 1 mm up; it is used where hot-rolled gauges and a rougher surface are acceptable.

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Keep reading

DD11 / SPHCDD11 (1.0332) is the commercial-quality grade of EN 10111, a low-carbon hot-rolled strip made for cold forming.DD12 / SPHDDD12 (1.0398) is the drawing-quality grade of EN 10111, a hot-rolled low-carbon strip with lower carbon and more elongation than DD11.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.S355MCS355MC (1.0976) is a thermomechanically rolled high-strength steel strip to EN 10149-2 with a minimum yield of 355 MPa, made for cold forming and bending.1008SAE 1008 is a very low-carbon steel with at most 0.10 % carbon, supplied as sheet, strip, wire and bar for deep drawing and cold forming.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. Nippon Steel Slovakia: EN 10111 drawing steels DD11 to DD14 — Yield, tensile and elongation by thickness band; heat-analysis C, Mn, P, S.
  2. ArcelorMittal Industry catalogue: EN 10111 hot-rolled grades — Yield, tensile, A80 and A5.65 by thickness; no Si, Al or CEV limit for DD grades.
  3. Arvedi: steels for cold deformation as per EN 10111 — Material numbers 1.0332, 1.0398, 1.0335, 1.0389; composition limits.
  4. DIN Media: EN 10111 Continuously hot rolled low carbon steel sheet and strip for cold forming — Scope and title of the standard (thickness up to 11 mm).
  5. Krakatau POSCO: hot-rolled coil specification table (MS 1705, JIS grade names SPHC, SPHD, SPHE) — Composition, tensile minimum and elongation by thickness for SPHC, SPHD and SPHE as tabulated for the Malaysian standard that uses the JIS grade names.
  6. Tata Steel DigECA: Tata Astrum IS 1079 HR3 — Tensile maximum 400 MPa, elongation minimum 28 %.
  7. Tata Steel DigECA: steel grade chart India — IS 1079 HR1 to HR4 described as commercial, drawing, deep drawing and extra deep drawing quality.
  8. ASTM A1011/A1011M: hot-rolled carbon, structural, HSLA and UHSS sheet and strip (abstract) — Scope: CS, DS, SS, HSLAS, HSLAS-F and UHSS designations; the standard text is paywalled.
  9. SSAB: ASTM A1011 product range — Lists the A1011 designations offered: HSLAS, HSLAS-F and SS grades; no DDS designation.
  10. Total Materia: ASTM A 1011 DS Type B — C 0.02–0.08, Al ≥0.01; typical yield and elongation; EN DD12 listed as an implicit equivalent.

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