250 QualitySheet Specification

250 Quality Sheet Specification

High strength steels for cold forming

Reproducible Letter Symbols --> CCR --> CCRD --> CCR
AlternativesThere is no alternative to this sheet.

Flat / Cold Rolled

Cold rolled coils or flat steel products are produced by rolling hot rolled flat steels without a heat treatment operation in a thickness range of 0.20 to 2.00mm. While the product’s physical properties are all homogeneous along the strip, surface flatness, width and thickness values have fulfilled expectations at the top level.

High strength steels for cold forming

Chemical Composition (%)

Standard EquivalentErdemir Grade NoCmax.Mnmax.Pmax.Smax.Simax.Almin.Almax.Vmax.Nbmax.Timax.CEmax.
StandardQuality
11-04-002XE-320DR2500.101.100.030.0250.200.0150.080.100.100.100.28
  1. The carbon equivalent is defined by the Ceq formula = C+(Mn+Si)/6.
  2. The limits which are specified in the table are the limits of the customer's specifications.

Mechanical Properties

Standard EquivalentErdemir Grade NoRe [N/mm2]Rm [N/mm2]A(%) min.n90r90
StandardQuality
A80min.
11-04-002XE-320DR250320-390415-480240.130.5 min.
  1. Rp0.2 / Rm ≤ 0.85
  2. The mechanical properties are valid for a period of 6 months from the date on which the products are made available.
  3. Unless otherwise agreed, n value is taken between %10-20 elongation range.
  4. Tensile test values apply to "longitudinal" test pieces