HOT-DIP GALVANIZED COILS

UNI EN 10346

Hot-dip galvanized mild steel sheets with zero spangle surface finish.

 

Materials suitable both for simple forming operations and for bending operations up to the deepest moulding, to be used in metalworking and industrial plant engineering, in the automobile, transport and appliance industries, in road signage and infrastructure, for the production of furniture and shelving, of equipment for agriculture and animal husbandry, for the production of small metal parts.

 

High-strength low-alloy steels (HSLA), particularly suitable for the transport and automotive sector, have a high ductility and a high yield strength, and mechanical strength, which allow products to be manufactured with a good resistance to use and impacts.

LOW CARBON COLD FORMING STEELS 

CHEMICAL COMPOSITION

a) By agreement at the time of request and order, the Ti content for the steel grades mentioned in this table may be lowered to < 0.05%, which means that the steel grade is not alloyed. 

MECHANICAL CHARACTERISTICS (CROSS DIRECTION)

a) If the yield strength is not displayed, the values apply to the resistance 0.2% Rp02; if the yield strength is displayed, the values apply to the lower yield strength ReL.

b) Decrease in minimum product thickness elongation values <= 0.50 mm. ( minus 4 units) and for thickness > 0.50 mm. and <= 0.70 mm. (minus 2 units). c) The value applies only to Skin-passed products (surface B and C). d) For thicknesses > 1.50 mm the minimum value of r90 shall be reduced to 0.2.

c) The value applies only to Skin-passed products (surface B and C).

d) For thicknesses > 1.50 mm the minimum value of r90 shall be reduced to 0.2.

e) For thicknesses <= to 0.70 mm the minimum value of r90 reduced to 0.2 and a minimum value of n90 reduced by 0.01 shall apply.

f) The minimum elongation for products consisting of DX55D+AS which does not follow the systematic order should be observed.
The DX55 is characterised by maximum thermal resistance.

MICRO-ALLOYED HIGH-STRENGTH STEELS 

CHEMICAL COMPOSITION OF CASTING

Subject to agreement at the time of the request and order, if additional chemical elements are added, these must be mentioned on the control document, which may require a change of classification. 

MECHANICAL CHARACTERISTICS

a) If the yield point is displayed, the values apply to the upper yield point
b) For all grades, except S550GD, a range of 140 MPa for tensile strength can be provided.
c) For the thickness of the product, decreased values shall be applied:
0,50mm < t≤0,70mm (less 2 units)
0,35mm < t ≤ 0,50mm (less 4 units)
and t ≤ 0,35mm (less 7 units) d 1 MPa= I N/mm2.
DISPLAY THE EXTRACT OF THE STANDARD
SUPPLY CHARACTERISTICS AND SIZE LIMITS