Galvanized steel profiles from ULAMEX encompass the complete programme of hot-dip galvanized structural steel sections for construction, industrial, agricultural and infrastructure applications across Europe. Our range includes cold-formed galvanized C profiles (purlins), hot-rolled galvanized U profiles (UPN channels), equal and unequal galvanized steel angles, flat bars, round bars, square bars and rectangular hollow sections — all galvanized in accordance with DIN EN ISO 1461 for long-term, maintenance-free corrosion protection. As an established galvanized profiles supplier with over 38 years of experience in the European steel trade, ULAMEX delivers from stock with full mill certification and competitive wholesale pricing.
Material Grades and Galvanizing Standards
All galvanized steel profiles in our programme are manufactured from proven European structural steel grades and galvanized to the highest applicable standards:
- S235JR (material number 1.0038, formerly St37-2) — the standard non-alloy structural steel grade per EN 10025-2. Minimum yield strength of 235 MPa (for thicknesses up to 16 mm), tensile strength 360–510 MPa, minimum elongation 26%. The JR designation guarantees impact toughness of 27 J at +20°C. S235JR is the default choice for secondary steelwork, bracing, connection elements and general fabrication where moderate structural loads govern the design.
- S355J2 (material number 1.0577, formerly St52-3) — the higher-strength structural steel grade with minimum yield strength of 355 MPa, tensile strength 470–630 MPa, minimum elongation 22%. The J2 impact designation guarantees 27 J at -20°C, making S355J2 the preferred grade for primary load-bearing members, heavy-duty columns and applications in cold-climate outdoor environments where both strength and impact resistance are critical.
- S350GD+Z275 — continuously galvanized structural steel per EN 10346, used for cold-formed galvanized C purlins and thin-wall profiles. The Z275 designation indicates a zinc coating mass of 275 g/m² (approximately 20 µm per side), applied during the strip manufacturing process before cold forming. Minimum yield strength 350 MPa.
Hot-rolled profiles (angles, U-channels, flat bars, round bars) are first manufactured from S235JR or S355J2 base steel and then hot-dip galvanized after fabrication per DIN EN ISO 1461. This batch galvanizing process immerses the finished steel profile in a molten zinc bath at approximately 450°C, creating a metallurgical iron-zinc alloy bond that is fundamentally different from — and superior to — paint, powder coating or electro-galvanizing. Cold-formed purlins and thin-wall profiles use the continuous strip galvanizing process per EN 10346, where the zinc coating is applied to the flat steel coil before roll forming.
Corrosion Protection Performance of Hot-Dip Galvanized Profiles
The hot-dip galvanized zinc coating on structural steel profiles provides a dual protection mechanism that makes it the most cost-effective long-term corrosion protection system available:
- Barrier protection — the continuous zinc layer physically isolates the steel substrate from moisture, oxygen and corrosive atmospheric agents. The zinc coating thickness on hot-dip galvanized profiles ranges from 45 to 85 µm depending on the steel thickness and section geometry (per ISO 1461, Table 3). For steel sections with material thickness above 6 mm, the minimum local coating thickness is 70 µm with a minimum mean of 85 µm.
- Cathodic (sacrificial) protection — zinc is electrochemically more active than steel (lower electrode potential in the galvanic series). At cut edges, drilled holes, scratches and areas of minor mechanical damage, the surrounding zinc corrodes preferentially to protect the exposed steel. This self-healing capability extends protection to areas that are not directly coated — a critical advantage over painted or powder-coated surfaces that have no such mechanism.
In typical Central European outdoor environments classified as corrosivity category C2 to C3 per EN ISO 9223 (urban, industrial, mild coastal), a standard hot-dip galvanized coating provides 30 to 50+ years of maintenance-free service life. In category C4 (high-salinity industrial or moderate coastal), the expected protection period is 15–25 years. These service life estimates are based on zinc corrosion rates documented in EN ISO 9224 and confirmed by decades of field exposure studies across Europe.
Profile Types and Dimensions Available
ULAMEX stocks the following galvanized steel profile types, covering the complete range of cross-sections required for structural, industrial and agricultural applications:
| Profile Type | Dimensions (mm) | Thickness (mm) | Material Grade | Standard Length |
|---|---|---|---|---|
| C-channels (purlins) | Height 100–300, flange 40–90 | 1.5–3.0 | S350GD+Z275 | 6,000 mm |
| Gate C-channels | Per fence system specification | 1.5–2.5 | S235JR + HDG | System lengths |
| Angles (L-profiles) | 25×25 to 100×100 | 3–10 | S235JR + HDG | 6,000 mm |
| Flat bars | Width 20–100, various thicknesses | 3–10 | S235JR + HDG | 6,000 mm |
| Round bars | Diameter 6–30 | — | S235JR + HDG | 6,000 mm |
| Square bars | Side 8–30 | — | S235JR + HDG | 6,000 mm |
| Rectangular hollow sections | Various | 1.5–4.0 | S235JR + HDG | 6,000 mm |
All profiles are supplied in standard lengths of 6,000 mm. Cut-to-size services are available on request for project-specific lengths. Dimensional tolerances conform to the applicable product standards: EN 10162 for cold-formed profiles, EN 10056-1 for angles, EN 10058 for flat bars, and EN 10060 for round bars.
Applications of Galvanized Steel Profiles
Hot-dip galvanized profiles are specified wherever structural steel must perform reliably in outdoor, exposed or corrosive environments without the ongoing cost of maintenance painting. Key application areas include:
- Steel-framed building construction — galvanized steel purlins (C-channels) serve as roof purlins and wall girts in industrial halls, agricultural buildings, warehouses and logistics centres. The corrosion-resistant zinc coating eliminates the need for on-site primer application and ensures decades of maintenance-free roof support.
- Carport and canopy structures — galvanized angles, channels and hollow sections form the structural framework for carport constructions, providing weather-resistant support without aesthetic degradation over time.
- Agricultural buildings and livestock facilities — farm buildings, stables, machinery sheds and grain storage structures benefit from the corrosion resistance of galvanized profiles, particularly in environments with elevated ammonia levels and high humidity.
- Solar and photovoltaic mounting substructures — galvanized C-profiles and angles form the mounting framework for ground-mounted solar arrays, combining structural integrity with 30+ year corrosion protection that matches the design life of photovoltaic installations.
- Fence and gate construction — galvanized angles and gate C-channels provide the structural framework for fence gates and wickets, with full corrosion compatibility with galvanized fence panels and posts.
- Racking, shelving and equipment frames — industrial racking systems, workshop equipment supports and machinery frames utilise galvanized profiles for their combination of structural strength and corrosion resistance in humid or outdoor storage environments.
- Infrastructure and civil engineering — guardrail posts, cable tray supports, handrail components and utility supports all benefit from the maintenance-free service life of hot-dip galvanized steel.
Standards, Certifications and Quality Assurance
ULAMEX operates as an EN 1090 certified steel distributor with full compliance to the European Construction Products Regulation (CPR). Our quality management system is certified to ISO 3834-2, and our welding quality system to ISO 3834. Key standards governing our galvanized profile programme include:
- EN ISO 1461 — hot-dip galvanized coatings on fabricated iron and steel articles. Defines minimum zinc coating thickness requirements based on steel thickness.
- EN 10346 — continuously hot-dip coated steel flat products for cold forming. Governs strip-galvanized material grades including S350GD+Z275.
- DIN EN 10025-2 — hot rolled products of structural steels. Defines mechanical properties and chemical composition for S235JR and S355J2.
- EN 10204 — metallic products: types of inspection documents. All profiles are available with mill test certificates 3.1 on request.
- EN ISO 9223 / EN ISO 9224 — corrosion of metals: classification of corrosivity of atmospheres and guiding values for corrosion rates.
Every galvanized profile in our inventory is fully traceable to its origin mill, production heat and galvanizing batch. CE marking documentation accompanies all deliveries.
Why Choose ULAMEX as Your Galvanized Profiles Supplier
With over 35 years of experience in the European steel trade, ULAMEX has established itself as a trusted galvanized profiles supplier for construction companies, steel fabricators, agricultural contractors and industrial buyers across Western and Central Europe. Our value proposition is built on four pillars:
- Stock availability — extensive warehouse inventory of the most commonly specified galvanized profile sizes and grades, enabling rapid dispatch within 3–5 working days for stock items.
- Full documentation — mill test certificates 3.1, CE marking documentation, galvanizing certificates and declarations of performance (DoP) for every delivery.
- Competitive wholesale conditions — as a B2B wholesale distributor, we offer project-volume pricing, bundled multi-product quotations and direct mill orders for large-quantity requirements.
- European delivery — reliable logistics across Germany, Austria, Switzerland, Benelux, Scandinavia, UK and Central Europe with full transport documentation.
Frequently Asked Questions — Galvanized Steel Profiles
What is the difference between hot-dip galvanized and electro-galvanized profiles?
Hot-dip galvanizing (per EN ISO 1461) produces a thick zinc coating of 45–85 µm through immersion in molten zinc, creating a metallurgical bond with the steel. Electro-galvanizing (zinc plating) deposits only 5–25 µm of zinc through an electrochemical process, providing significantly less corrosion protection. For structural and outdoor applications, hot-dip galvanized profiles are the only appropriate choice.
Can galvanized profiles be welded?
Yes, galvanized steel can be welded using standard arc welding processes (MIG/MAG, MMA). However, welding burns away the zinc coating in the heat-affected zone, which must be restored by applying zinc-rich paint or zinc spray metallizing after welding. Adequate ventilation is essential during welding of galvanized steel to manage zinc oxide fumes. ULAMEX recommends consulting EN 1011-6 for welding of galvanized steels.
What is the minimum order quantity for galvanized profiles?
ULAMEX operates as a B2B wholesale distributor. Minimum order quantities depend on the profile type and current stock levels. For standard stock items, orders from single bundles are accepted. Contact our sales team for exact availability and MOQ for your required profiles.
Do you supply cut-to-size galvanized profiles?
Yes. Standard profiles are stocked in 6,000 mm lengths. We offer sawing to custom lengths on request — specify your required dimensions when requesting a quote. Note that cut edges on hot-dip galvanized profiles are protected by the cathodic (sacrificial) action of the surrounding zinc coating.
ULAMEX is your single-source galvanized steel profiles wholesale partner for the complete range of galvanized steel products. Whether you need C-purlins for a warehouse roof, angles for structural bracing or gate profiles for a fencing project, our experienced team delivers reliable quality, full documentation and competitive B2B pricing. Request a quote today or call us directly to discuss your galvanized profile requirements.