388 QualitySheet Specification

388 Quality Sheet Specification

High yield strength steel with zinc coating (galvanized) by continuous hot-dip process for cold forming

AlternativesThere is no alternative to this sheet.

Flat / Galvanised

Galvanized flat steel is manufactured by zinc-coating both sides of cold rolled metal by hot-dipping process. After having coated the steel surface with zinc, the coating of the interface is transformed into an alloy of iron-zinc layer through heating by induction and the galvannealed steel is produced.

High yield strength steel with zinc coating (galvanized) by continuous hot-dip process for cold forming

Chemical Composition (%)

Standard EquivalentErdemir Grade NoCmax.Mnmax.Pmax.Smax.Simax.Almax.Vmax.Nbmax.Timax.CEmax.
StandardQuality
11-04-002/LXE280P3880.081.300.100.0250.250.080.010.040.100.28
  1. The limits which are specified in the table are the limits of the customer's specifications.
  2. The carbon equivalent is defined by the Ceq formula = C+(Mn+Si)/6.
  3. IF steel.
  4. Ti+Nb+V < % 0,10

Mechanical Properties

Standard EquivalentErdemir Grade NoRe [N/mm2]Rm [N/mm2]Re/RmA(%) min.n90rAg
StandardQuality
A80min.
11-04-002/LXE280P388280-340385-4500.8 max.290.171.5 min.1.3 min.
  1. Tensile test values apply to "transverse" test pieces
  2. r : Plastic anisotropy coefficient measured based on the standard ISO 10113 at Ag%.
  3. n :work hardening coefficient measured based on the standard ISO 10275 (8% longitudinal elongation of the conventional and the elongation measured at Ag%)
  4. Unless otherwise agreed, n value is taken between %10-20 elongation range.
  5. Guarantee periods of absence of stretcher strains marks and mechanical properties are 6 months. The period begin on the date which products are first oiled by the steel manufacturer in the latter’s plant.