Türkçe
العربية
4239 Quality Sheet Specification
Hot rolled unalloyed structural steels for manufacture of construction equipment, machines and various machine parts, general construction plates, road and railway vehicles
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.
Hot rolled unalloyed structural steels for manufacture of construction equipment, machines and various machine parts, general construction plates, road and railway vehicles
Chemical Composition (%)
| Standard Equivalent | Erdemir Grade No | Cmax. | Mnmax. | Pmax. | Smax. | Simax. | Cumax. | CEmax. | |
|---|---|---|---|---|---|---|---|---|---|
| Standard | Quality | ||||||||
| EN 10025-2:2019 | S235J2+N CTA | 4239 | 0.17 | 1.40 | 0.025 | 0.025 | 0.03 | 0.55 | 0.35 |
- Carbon equivalent, CEV (IIW) % = C + Mn / 6 + (Cr + Mo + V) / 5 + (Ni + Cu) / 15
- Suitable for galvanizing as "Category A". Category A contains Si ≤ 0.030% and Si+2.5P ≤ 0.090%.
- Deoxidation method of this products is fully-killed. Minimum aluminium to nitrogen ratio is 2:1.
Mechanical Properties
| Standard Equivalent | Erdemir Grade No | Re [N/mm2] t(thickness, mm) | Rm [N/mm2] | A(%) min. t(thickness, mm) | Impact | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Standard | Quality | |||||||||||||||
| A801.39≤t≤1.5 | A801.51≤t≤2 | A802.01≤t≤2.5 | A802.51≤t≤2.99 | A53≤t≤25 | Temperature ( ° C)6≤t≤7.49 | KVC J min.6≤t≤7.49 | Temperature ( ° C)7.5≤t≤9.99 | KVC J min.7.5≤t≤9.99 | Temperature ( ° C)10≤t≤25 | KVC J min.10≤t≤25 | ||||||
| EN 10025-2:2019 | S235J2+N CTA | 4239 | 225 min. | 235 min. | 360-510 | 16 | 17 | 18 | 19 | 24 | -20 | 14 | -20 | 21 | -20 | 27 |
- Tensile test values apply to "transverse" test pieces
- Impact test is not carried out for thickness thinner than 6 mm.