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3550 Quality Sheet Specification
Katlamaya Uygun Yapı Çelikleri
AlternativesThere is no alternative to this sheet.
Flat / Hot Rolled
Flat steel products are obtained by heating semi-finished products with a rectangular cross-section (slab), which are produced by the continuous casting method, to a specific temperature and then rolling them, with thicknesses ranging from 1.40 to 25.40 mm and widths ranging from 700 to 2025 mm, produceed as coil or by cutting/slit-coiling flat steel products from coils.
Katlamaya Uygun Yapı Çelikleri
Chemical Composition (%)
| Standard Equivalent | Erdemir Grade No | Cmax. | Mnmax. | Pmax. | Smax. | Almin. | Crmax. | Momax. | Nimax. | Nbmin. | Cumax. | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Standard | Quality | |||||||||||
| ASTM A1011-2025 | HSLA 50 Class 1 | 3550 | 0.23 | 1.35 | 0.04 | 0.04 | 0.015 | 0.15 | 0.06 | 0.20 | 0.005 | 0.20 |
- These grades are produced in İsdemir facilities.
- When copper is requested in the chemical compositon, value specified in the table will be evaluated as minimum value. When copper is not specified, the copper limit is a maximum requirement.
- For each reduction of 0.01 percentage point below the specified max C an increase of 0.06 percentage point above the specified max for Mn is permitted up to a max of 1.50% by heat analysis
- V, Nb, Ti can be added seperately or in various combinations as indicated in the table.
Mechanical Properties
| Standard Equivalent | Erdemir Grade No | Re [N/mm2] | Rm [N/mm2] | A(%) min. t(thickness, mm) | Bend (Transverse , BMD) t: thickness | ||
|---|---|---|---|---|---|---|---|
| Standard | Quality | ||||||
| A501.5≤t≤2.5 | A502.51≤t≤20 | 180° | |||||
| ASTM A1011-2025 | HSLA 50 Class 1 | 3550 | 340 min. | 450 min. | 20 | 22 | R 2d |
- The bending test is carried out only when specified at the time of enquiry and order.
- Tensile test values apply to "longitudinal" test pieces