Hot rolled steel

Hot-rolled steel for drawing and cold forming

Standard of reference UNI-EN 10111

Supply conditions PICKLED

Steels for drawing, consisting of four grades, which represent the degree of difficulty of the applications.

DD 11 Steel for bending and light drawing
DD 12 Steel for medium drawing
DD 13 Steel for deep drawing
DD 14 Steel for very deep drawing and for carrying-out more difficult parts

Hot-rolled steel for structural applications

Standard of reference UNI-EN 10025

Supply conditions NOT-PICKLED (black) or PICKLED

Structural steel, consisting of 4 levels identified by the guaranteed minimum yield strength. Each level consists in turn of different grades depending on the characteristics of impact strength KV and the supply conditions.

These steels are suitable for various applications in general construction and in the manufacture of parts that have to withstand severe stresses. According to the minimum yield strength, the most suitable material can be identified depending on the end use. For high yield strengths related to other formability performances, it is necessary to move towards high tensile micro-alloyed steels.

S185 Basic steel
S235 Equipment which does not need to be lightweight and not subjected to severe stress. Grade fit for parts with medium difficulty.
S275 Operating parts subjected to average level stresses: section bars, welded beams, tanks.
S355 Fixed or mobile parts, metal structures that need to withstand heavy stresses: street lamps, trailer chassis, equipment for public works.

Hot-rolled steel with high yield strength for cold forming

UNI-EN 10149-2 thermo-mechanical steels (more generally known and used), UNI-EN 10149-3 normalised steels

Supply conditions NOT-PICKLED (black) or PICKLED

High tensile steels, micro-alloyed with guaranteed minimum yield strength: they are excellent for welding and cold forming. The grades are identified by the minimum guaranteed yield strength. The high mechanical characteristics of this range of steels and the good drawing performance allow to create cost-effective solutions for several parts or parts that require reductions in weight, thickness and overall dimensions, while leaving unchanged the resistance of parts or components. Some examples of application can be: highway trailer trucks, buckets, large trucks, cranes, farm equipment, beams, welded tubes, profiles in general for scaffolds or shelves, containers, guide bars, street lamps. The regularity of spring back makes this steel suitable for all automated mass productions and also facilitates assembly.

Examples of grades we can supply

S315MC – S355MC – S420MC – S260NC – S315NC – S355NC – S420NC

Hot-rolled steel for one-surface enamelling

Thanks to a concept of analysis related to specific rolling parameters, this type of material is suitable for ONE SURFACE enamelling.
Prior to industrial use, we recommend a test batch because the required surface grade is influenced not only by the material but also by the pre-treatment and the type of enamel used.

AVAILABLE SIZES

Maximum width by thickness (minimum width 900mm)

Thickness DD11CCE DD15CCE S240CCE S300CCE S355CCE S380CCE
2,00 – 2,49 1500 1500 1500 1500 — —
2,50 – 2,75 1600 1600 1600 1600 — —
2,75 – 2,99 1600 1600 1600 1600 —
3,00 – 3,24 1600 1600 1600 1600 1400 1400
3,25 – 3,49 1600 1600 1600 1600 1480 1480
3,49 – 8,00 1600 1600 1600 1600 1530 1530

MECHANICAL CHARACTERISTICS

(Perpendicular to the rolling direction)

Quality Values indicative to the supplied Minimum values with simulated annealing 830°C
Rp02
MPa		 Rm
MPa		 A80 %
min		 A5 %
min		 Rp02
MPa		 Rm
MPa		 A80 %
min		 A5 %
min
DD11CCE 200 – 300 300 – 400 25 30 170 250 25 30
DD15CCE 140 – 240 260 – 360 28 33 100 250 28 33
S240CCE 240 – 360 360 – 450 22 27 240 360 22 27
S300CCE 300 – 420 380 – 490 20 25 280 360 20 25
S355CCE 600 – 770 650 – 800 14 355 500 16
S380CCE 620 – 790 670 – 820 12 380 550 15

Note
Value of the elongation: A80 for thicknesses up to 2.99, A5 for higher thicknesses

Exaples of use