The construction sector is one of the heaviest consumers of welded fabrication. Industrial facilities, warehouses, malls, hotels and offices are erected with steel frames. Within structural steel fabrication, columns, beams, trusses and connection details are welded both in shop and on site. ArmaWeld manufactures EN 1090 EXC2/EXC3 certified structural steel from its Konya facility.
1. Structural Steel Grades
- S235/S275: general construction, light structures
- S355: industrial primary members
- S420/S460: high-strength projects
- S355 J0/J2/JR: selection by impact toughness class
2. EN 1090 EXC Classes for Construction
The EXC class is set per structure type and risk level. Typically:
| Structure Type | EXC Class |
|---|---|
| Agricultural building, small warehouse | EXC1 |
| Industrial building, mall | EXC2 |
| Multi-story building, crane runways, bridges | EXC3 |
| High-risk structures (stadiums, special) | EXC4 |
3. Connection Details
Construction steel uses welded (shop), bolted (site) or hybrid connections. For full-penetration welds in shop, joint preparation per EN ISO 9692-1 applies. MAG/FCAW dominates site welding. Bolted connections use preloaded HV bolts per EN 14399.
4. Typical Project Flow
Construction steel projects flow through design coordination, shop prefabrication, surface preparation (Sa 2½), painting or galvanizing, logistics and site erection. ArmaWeld ships modules from Konya across Türkiye and to export markets. With site erection coordination, turn-key solutions are delivered.
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Prefabrication and site erection in the EN 1090 EXC2/EXC3 certified shop.
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