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Flat products – coils, sheets ad plates Welded hollow sections – tubes and pipes

Low carbon steels for cold forming and deep drawing applications

Steels for cold forming and deep drawing applications are characterised by guaranteed maximum yield and tensile strength and minimum elongation.

This range of steel grades is widely used for bending and drawing applications in general industry, building, the automotive industry and related sectors.

EN 10111:2008
DIN 1614-2:1986
dd11
StW22
dd12
RStW23
dd13
RStW24
dd14
Thickness
Min. width
Max. width
1,50 – 1,74
720
1250
1,75 – 1,99
720
1300
2,00 – 2,24
720
1550
2,25 – 2,49
720
1650
2,25 – 2,49
720
1800
3,00 – 15,00
720
2050

Structural steels

Structural steels are carbon-manganese steels with a guaranteed minimum yield strength and tensile strength, and satisfactory ductility. In addition to their good mechanical properties, structural steels also have very acceptable toughness values. Structural steels offer good weldability with conventional welding processes. In most cases, pre- or post-heat treatment is not necessary with welding.

These steels are suitable for most common applications.Structural steels are mainly used in the building industry and in mechanical engineering.

Applications include building components, containers, storage tanks and roll formed profiles.

Various grades can be supplied:

Without any special rolling and/or heat treatment requirements. The abbreviated designation of this delivery condition is +AR.

Following a rolling process in which final forming is carried out within a certain temperature range, producing a material in a condition equivalent to that obtained after normalisation, with the result that the specified mechanical properties values are conserved even after normalisation treatment. The abbreviated designation of this delivery condition is +N.

They are also produced in paterned surface (diamond and tear-drop) form.

EN 10025-2:2004DIN 17100:1983
S235JRRSt37-2
S235J0St37-3 U
S235J2
S235J2+NSt37-3 N
S275JRSt44-2
S275J0St44-3 U
S275J2
S275J2+N St44-3 N
S355JR
S355J0St52-3 U
S355J2
S355J2+N St52-3 N
S355K2+N
S185, S235JR, S235JO, S235J2, S235J2+N S275JR, S275JO, S275J2, S275J2+N
ThicknessMin. widthMax. width
1,50 – 1,747201250
1,75 – 1,997201300
2,00 – 2,247201550
2,25 – 2,497201650
2,50 – 2,997201800
3,00 – 15,007202050
16,00 – 100,0015002500
S355JR, S355JO, S355J2, S355J2+N, S355K2+N
ThicknessMin. widthMax. width
2,00 – 2,24 7201200
2,25 – 2,49 7201300
2,50 – 2,99 7201400
3,00 – 3,49 7201500
3,50 – 3,99 7201650
4,00 – 4,49 7201750
4,50 – 4,99 7201850
5,00 – 5,49 7201950
5,50 – 15,00 7202050
16,00 – 100,00 15002500
Patterned surface (diamond or teardrop) S185, S235JR, S235JO, S235J2, S235J2+N S275JR, S275JO, S275J2, S275J2+N
ThicknessMin. widthMax. width
3,00 - 10,007201550

Steels for pressure vessels and boilers, with specified properties at elevated temperatures

Steels for pressure vessels and boilers differ from other carbon-manganese structural steels due to their high resistance to pressure at all temperatures (ambient, low or high).

They have good weldability, as well as excellent toughness, and are suitable for normalisation annealing and stress-relief annealing.

Steels for pressure vessels are mainly used to manufacture boilers, drums, pressure or steam piping, industrial thermal vessels and heat exchangers. These steels are suitable for mechanical forming and welding.

High pressure vessel steel EN 10120
P245NB
P265NB
Boiler steel EN 10028-2:2009
P235GH
P265GH
P295GH
P355GH
ThicknessMin. widthMax. width
1,50 – 1,747201250
1,75 – 1,997201300
2,00 – 2,247201550
2,25 – 2,497201650
2,50 – 2,997201800
3,00 – 15,007202050

Steels for shipbuilding

Germanischer LLoyd’sLLoyd’s register
GL-AGRADE-A
ThicknessMin. widthMax. width
1,50 – 1,747201250
1,75 – 1,997201300
2,00 – 2,247201550
2,25 – 2,497201650
2,50 – 2,997201800
3,00 – 15,007202050

Micro-alloyed, thermo mechanically rolled, high yield strength for cold forming (’’high strength steels’’)

High strength steels are characterised by high ductility, controlled internal purity, fine grain structure and low carbon content.

High strength steels combine:

Outstanding mechanical properties

High strength

Toughness

Fatigue resistance

Good formability

Good weldability

With their high strength, they are an excellent choice when weight-saving is a priority, and are frequently used to replace structural steels.

High strength steels are used in a wide range of applications in transport (earth movers, trailers, agricultural and railroad machinery etc), profiling (racks etc) and building (cranes, safety barriers, light poles etc). Significant weight reductions can be achieved by using high strength steels, especially for cranes and heavy vehicle trailers, thus allowing a larger payload.

EN 10149-2:2013SEW 092:1990
S315MCQstE340TM
S355MCQstE380TM
S420MCQstE460TM
S460MCQstE500TM
S500MCQstE550TM
S550MCQstE600TM
S600MCQstE650TM
ThicknessMin. widthMax. width
2,00 – 2,24 10501100
2,25 – 2,4910501250
2,50 – 2,9910501350
3,00 – 3,4910501500
3,50 – 3,9910501600
4,00 – 4,4910501700
4,50 – 4,9910501800
5,00 – 5,99 10501900
6,00 – 12,4910502050
12,50 – 12,9910501950
13,00 – 13,4910501900
13,50 – 13,99 10501850
14,00 – 14,4910501800
14,50 – 15,00 10501750