Quality	Testing direction	Material-No.	Yield point Rp0,2 (MPa)	Tensile strength Rm (MPA)	r-Value 90° min.	n-Value 90° min.	Old Description
DC01	Q	1.0330	≤280	270 - 410			St 12-03
DC03	Q	1.0347	≤240	270 - 370	1,30		St 13-03
DC04	Q	1.0338	≤210	270 - 350	1,60	0,18	St 14-03
DC05	Q	1.0312	≤180	270 - 330	1,90	0,20	St 15-03
DC06	Q	1.0873	≤170	270 - 330	2,10	0,22
DC07	Q	1.0898	≤150	250 - 310	2,50	0,23

Quality	Testing direction	Material-No.	Tensile strength Rm (MPA)	Elongation A80 (in %) min.
DC01EK	Q	1.0390	270 - 390	30
DC04EK	Q	1.0392	270 - 350	36
DC05EK	Q	1.0386	270 - 350	36
DC06EK	Q	1.0869	270 - 350	38
DC03ED	Q	1.0399	270 - 370	34
DC04ED	Q	1.0394	270 - 350	38
DC06ED	Q	1.0872	270 - 350	38

Quality	Testing direction	Yield point Rp0,2 (MPa)	DIN 1623 T2 (old)
S215G	Q	≥215	St 37-3G
S245G	Q	≥245	St 44-3G
S325G	Q	≥325	St 52-3G

Cold rolled steel according DIN EN 10130, 10209 and DIN 1623 particularly smooth cold simple forming coil.

Cold rolled steel particularly smooth cold simple forming coil is also part of our product portfolio. Cold rolled steel is excellent for cold forming. This product group assigned the grades DC01 to DC07, DC01EK to DC06EK, DC03ED to DC06ED and S215G to S325G. The grades are classified according to the maximum permissible yield strength and can be subdivided as follows.

Enamelled grades

The particularly smooth cold simple forming coil steel grades DC01EK, DC04EK and DC06EK are suitable for conventional single-layer or double-layer enamelling. The steel grades DC06ED, DE04ED and DC06ED are suitable for direct enamelling as well as for enamelling according to the two-layer / one-firing method and for special applications of two-layer enamelling for low-distortion enamelling.

Mistakes such as pores, small grooves, small warts, slight scratches and a slight discoloration that does not affect the ability to reshape and adhere to surface coatings are permitted.

The better side must be free from defects so that the homogeneous appearance of a quality finish or an electrolytically applied coating is not impaired.

Surface finish

The surface finish may be particularly smooth, dull or rough. If no details are given when ordering, the surface finish will be delivered in a matt finish. The four surface finishes listed correspond to the center roughness values in the following table and must be tested in accordance with EN 10049.