What is it?
Deep-Drawing Steel (sometimes noted as DDS or DDQ) is used to describe steel that shares many of the same attributes as Drawing Steel Type B, but has a low-carbon/low manganese steel chemistry, along with low levels of residual elements. As with Drawing Steel, this grade of steel is suitable for producing deep-drawn parts or any other parts requiring significant altering to shape. Deep-drawing steel can be considered the middle point between Drawing Steel, and Extra-Deep-Drawing Steel (which contains even less carbon than Deep-Drawing Steel).
Traditionally, Deep-Drawing Steel falls within these parameters: C – 0.06 max.; Mn – 0.50 max.; P – 0.020 max.; S – 0.025 max.
Much like DS Type B, Deep-drawing steel can be used to fabricate automotive body sides, roofs, floor pans, reinforcements, doors, deck lids and hoods with difficult shapes.