WTSt 37-3 Steel Description
WTSt 37-3 steel grade is a hot rolled products of structural steels in technical delivery conditions with improved atmospheric corrosion resistance.
WTSt 37-3 steel is the Equivalent grades as S235J2W ( 1.8961 ) steel in EN 10025 - 5 : 2004 standard and E24W4 steel in NFA 35-502 standard and also Fe360DK1 steel in UNI standard.
WTSt 37-3 Steel Delivery state
Hot Rolled, Cold Rolled, Normalized, Quenched, Tempering, Thermal Mechanical Control Process (TMCP), Electroslag Remelting Technical, HIC test.
WTSt 37-3 steel application
Because of its low carbon content and fine-grained structure, WTSt 37-3 Steels with improved atmospheric corrosion resistance have excellent weldability.So WTSt 37-3 steel is mainly used for manufacturing welded,riveted or bolted structures.
Moreover, WTSt 37-3 steel with improved atmospheric corrosion resistance has a wide range of applications: architecture, smokestacks, fabrication,freight wagons, silos, pylons and bridges.
WTSt 37-3 steel chemical composition by [%]
| C % | Mn % | Cr % | Si % | CEV % | S % |
| Max 0.13 | 0.2-0.6 | 0.4-0.8 | Max 0.4 | Max 0.44 | Max 0.3 |
| Cu % | P % | ||||
| 0.25-0.55 | Max 0.035 |
For long products the P and S content can be 0.005% higher
The WTSt 37-3 steels may show a Ni content of max. 0,65 %
The WTSt 37-3 steels shall contain at least one of the following elements: Al total ≥ 0,020 %, Nb: 0,015 - 0,060 %, V: 0,02 - 0,12 %, Ti: 0,02 - 0,10 %. If these elements are used in combination, at least one of them shall be present with the minimum content indicated.
WTSt 37-3 steel Mechanical properties
| Grade | Min. Yield Strength Mpa | Tensile Strength MPa | Impact | ||||||||
| WTSt 37-3 | Nominal Thickness (mm) | Nominal Thickness (mm) | degree | J | |||||||
| Thick mm | ≤16 | >16 ≤40 |
>40 ≤63 |
>63 ≤80 |
>80 ≤100 |
>100 ≤150 |
≤3 | >3 ≤100 | >100 ≤150 | -20 | 27 |
| WTSt 37-3 | 235 | 225 | 215 | 215 | 215 | 195 | 360-510 | 360-510 | 350-500 | ||
The tensile test values given in the table apply to longitudinal samples; in case of strip and sheet steel of widths of ≥600 mm they apply to transverse samples.
If WTSt 37-3 mechanical properties have been significantly modified by heavy coldforming, either stress relief annealing or normalised may be applied. Normalised should also be applied following hotforming outside of the temperature range of 750 - 1.050 °C and after overheating.
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