Material number 1.0332: DD11
1.0332 is the European material number (Werkstoffnummer, EN 10027-2) for DD11, hot-rolled low-carbon steel for cold forming specified in EN 10111.
What 1.0332 means
EN 10027-2 material numbers have the form 1.XXYY: the leading 1 is steel; the next two digits give the steel group (03 → steels with < 0.12 % C or Rm < 400 MPa); the last two digits are a sequential number within that group. The number is unique to one composition and survives name changes, which is why 1.0332 has stayed constant while the symbolic name moved from StW22 to DD11.
DD11 at a glance
DD11 is the hot-rolled counterpart of DC01: a low-carbon sheet and coil steel specified in EN 10111 for cold forming, Werkstoff number 1.0332, formerly StW22. Where DC01 covers 0.4–3 mm cold-rolled, DD11 covers roughly 1.5–12 mm hot-rolled — the thickness band of wheel rims, agricultural panels, automotive chassis brackets, pressed pipe fittings, drums and gas cylinders.
EN 10111 guarantees a yield window of 170–360 MPa, tensile ≤ 440 MPa and 23–28 % elongation depending on thickness, with carbon ≤ 0.12 % and Mn ≤ 0.60 %. The wide yield range and absence of r/n values mark DD11 as a bending and general pressing grade; DD12, DD13 and DD14 are the drawing, deep-drawing and extra-deep-drawing steps. Most DD11 is sold pickled and oiled (DD11+P) for a scale-free surface.
Buyers often confuse DD11 with S235JR because the chemistry overlaps: the difference is what is guaranteed. S235JR promises a minimum yield and impact toughness for structures; DD11 promises a yield window and ductility for forming. JIS SPHC, BS HR1 and IS 1079 D are the same class; ASTM A1011 CS Type B is the nearest US grade.
Full data sheet for DD11 → · Equivalent grades →