DX51D+Z Structural Galvanized Steel Coil 1000-1250mm Width 195-420MPa Yield Strength

Structural work needs coil whose mechanical values are predictable, not merely compliant. This DX51D+Z galvanized steel coil is rolled to EN 10346 with yield strength held between 195 MPa and 420 MPa, tensile strength 270 to 500 MPa and elongation of at least 12 percent, and it is supplied in the wide 1000 mm to 1250 mm format that suits roll forming, press braking and automated welding cells. The zinc coating, normally Z120 to Z275, is applied after cold rolling on a continuous line, so the steel underneath keeps a fine grain structure while the surface resists atmospheric corrosion. We test one sample per coil for yield, tensile and elongation, and we report the actual figures rather than a nominal grade, because fabricators who set their press forces from a data sheet deserve values that describe the steel they will receive.

• Certified Mechanical Values: Yield, tensile and elongation measured per coil and reported on the mill test certificate, not copied from a generic standard table
• Wide Format 1000-1250mm: Fewer welds and less edge trim in wide panelling, decking and purlin runs, lowering scrap and labour per ton
• Consistent Flatness: Tension levelled coils with controlled crown and flatness so that automated cutting and welding lines index without jamming
• Coating Options Z120-Z275: Corrosion class selected against the exposure category of the finished structure, from sheltered interior to coastal exterior
• Dimensional Stability: Thickness tolerance within EN 10143 normal or tightened limits, keeping formed sections within drawing tolerance
• Traceable Documentation: Heat number, coil number and coating weight recorded so that structural approvals and audits can be closed quickly

This wide format coil serves structural and semi structural fabrication: steel decking and floor deck profiles, purlins and girts, racking uprights and beams, mezzanine floor panels, transmission tower accessories, scaffolding systems and prefabricated building frames. Because the coil is wide, roll formers can produce multi rib deck profiles in one pass and cut edge waste to a minimum. The predictable yield strength matters most in cold formed sections, where a small drift in yield changes springback and therefore the final profile angle. Customers running automated lines also value flatness and consistent coil weight, which reduce line stoppages and coil changeover time across a long production shift.

Each coil is wrapped in VCI anti-corrosion film, covered by a layer of waterproof kraft paper and a galvanized steel outer skin, then secured with three circumferential and two longitudinal steel straps on a fumigation-free plywood pallet. Eye-to-sky or eye-to-wall orientation is confirmed against the buyer's unloading equipment, and a desiccant pack is added for long sea voyages. Coils are loaded into 20ft or 40ft containers with timber dunnage and air bags to prevent shifting. Every shipment is accompanied by a mill test certificate to EN 10204 3.1, a packing list and a coating weight report, and third-party inspection by SGS or BV can be arranged before loading.

Our structural coil is routinely supplied against projects that require third party witnessing of mechanical tests, and we have completed orders for prefabricated building manufacturers in Australia, Chile, Poland and the Philippines. Production follows a documented control plan with in line thickness gauging and post line sampling, and every coil carries a heat number traceable to the steelmaking record. We hold ISO 9001:2015 certification and can provide EN 10204 3.1 certificates, factory production control documentation for CE marking of downstream products, and pre shipment inspection by SGS, BV or TUV. Tell us the profile, the forming method and the exposure class, and our engineers will match grade and coating to the application instead of defaulting to the heaviest specification.