Pre-painted galvanised steel coil S.Steel
What is galvanised steel coil in rolls
Galvanised steel coil is thin cold-rolled steel covered with a zinc layer for corrosion protection. The coil is rolled into rolls, which is convenient for transportation and further processing (cutting, bending, profiling). Coil thickness typically ranges from 0.4 mm to 1.5 mm, width from 100 mm to 1250 mm and more.
How galvanised steel is produced
Hot dip galvanising process: steel coil is passed through a bath with molten zinc (approximately 450°C). Zinc bonds strongly to the steel surface, forming several alloy layers. Zinc coating thickness is measured in micrometres. The higher the required corrosion resistance, the thicker the zinc layer.
Zinc coating classes
| Class | Coating thickness (μm) | Service life (years) | Application |
|---|---|---|---|
| 100 | 10–15 | 10–15 | Interior finishing, dry regions |
| 140 | 15–20 | 15–20 | Facades, roofing in temperate climate |
| 200 | 20–25 | 20–30 | Aggressive environment (industrial zone, seaside) |
| 275 | 25–35 | 30–40 | Maximum protection, high humidity |
For facades and roofing, coating class not lower than 140 is recommended, preferably 200 or 275.
Advantages of galvanised steel coil
Affordable price
Galvanised steel is one of the most budget-friendly metal materials for facades. It is significantly cheaper than copper, brass, aluminium and stainless steel. This allows implementing large projects without budget overruns.
High strength
Steel is stronger than aluminium and especially copper. Galvanised coil withstands high wind and snow loads, hail impacts and mechanical damage.
Corrosion resistance
Zinc coating reliably protects steel from rust. If the coating is damaged (scratched), zinc acts as a protector — it oxidises itself, protecting steel (galvanic protection).
Paintability
Galvanised coil can be painted in any colour from the RAL catalogue. Polymer coating (polyester, PVDF) additionally protects against ultraviolet and scratches and gives the material the desired shade.
Plasticity and processability
Coil is easily cut, bent, stamped and profiled. It can be used to manufacture shaped elements of any complexity: angles, fluted profiles, flashings, cornices.
Where galvanised steel coil is used
Facade systems
For facade finishing and architecture, galvanised coil is used to manufacture:
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Facade cassettes (painted or unpainted).
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Ventilated facades.
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Canopies, flashings, cornices.
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Window and door surrounds.
Suitable for: residential buildings, office buildings, shopping centres, industrial shops, warehouses, hangars.
Roofing
Galvanised steel is a classic roofing material. Coil is unrolled along the slope, joined with standing or flat seams. The roofing is hermetic and durable.
Suitable for: industrial buildings, hangars, private houses (painted), utility buildings.
Rainwater systems
Gutters, pipes, funnels, elbows are made from galvanised coil. They are resistant to corrosion and mechanical damage.
Suitable for: any buildings requiring reliable water drainage systems.
Industrial building elements
Profiles, siding, fencing, decking — many elements for industrial and agricultural construction are manufactured from coil.
Comparison of galvanised steel with other materials
| Characteristic | Galvanised steel | Aluminium | Copper | Stainless steel |
|---|---|---|---|---|
| Price (relative) | Low | Medium | High | Very high |
| Strength | High | Medium | Low (copper is soft) | Very high |
| Weight | Heavy | Light | Heavy | Heavy |
| Corrosion resistance | High (coating) | Maximum | High (patina) | Maximum |
| Need for painting | Desirable (for colour) | Often needed | Not needed | Not needed |
| Service life (without painting) | 15–30 years | 30–50 years | 80+ years | 60+ years |
How to choose galvanised steel coil for your facade
Coil thickness
| Thickness | Application |
|---|---|
| 0.4–0.5 mm | Rainwater systems, flashings, decorative elements (non-load-bearing) |
| 0.6–0.7 mm | Facade cassettes, roofing with purlin spacing up to 80 cm |
| 0.8–1.0 mm | Roofing in snowy regions, industrial facades |
| 1.2–1.5 mm | Reinforced structures, decking, platforms |
Coating type
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Without painting (plain galvanising). Economical, but dulls over time and may develop white coating. Suitable for temporary buildings, warehouses, storage sheds.
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Polyester (PE) painting. Any colour. 20–25 μm layer. 10–15 years service life. For facades in temperate climate.
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PVDF (polyvinylidene fluoride) painting. High UV and aggressive environment resistance. 25–40 years service life. For critical projects, high-rise buildings, coastal zones.
Roll width
Standard: 500 mm, 600 mm, 750 mm, 1000 mm, 1250 mm. For roofing, narrow coil is more convenient (seams are often made with 300–500 mm spacing). For facade cassettes — wide (fewer installation seams).
Why buy galvanised steel coil from the manufacturer
If you decide to buy galvanised steel coil in rolls, working directly with the manufacturer offers several important advantages.
Manufacturer prices
Without distributor and building hypermarket markups. Manufacturer prices for galvanised steel coil per m² in Moscow are 15–25% below market prices.
Quality control of metal and galvanising
The manufacturer is responsible for steel chemical composition, zinc coating thickness and painting uniformity. You receive material with a guarantee.
Any width and thickness for your project
You can order non-standard width coil (for example, 420 mm) to minimise waste. The manufacturer can also offer enhanced zinc coating for your climate zone.
Delivery throughout Russia
We ship products to any region of Russia through verified transport companies. Delivery to Moscow terminal is often free.
Technical support
We will advise on selecting thickness, galvanising class and coating type based on your loads and operating conditions.
Manufacturer prices for galvanised steel coil per m² in Moscow
Approximate manufacturer prices for galvanised steel coil per m² in Moscow (order from 500 m², coil thickness 0.5 mm, coating class 140):
| Coil width | Price (without painting) | Price with painting (polyester) | Price with painting (PVDF) |
|---|---|---|---|
| 500 mm | from 350 ₽ | from 550 ₽ | from 750 ₽ |
| 600 mm | from 340 ₽ | from 540 ₽ | from 740 ₽ |
| 1000 mm | from 320 ₽ | from 520 ₽ | from 720 ₽ |
| 1250 mm | from 310 ₽ | from 510 ₽ | from 710 ₽ |
Prices are approximate. Exact cost is calculated based on current metal prices and order volume.
For thicker coil (0.7–1.0 mm) price increases by 20–40%. For coating class 275 — additional charge 10–15%. For large projects (from 3000 m²) discounts up to 10% are possible.
Frequently asked questions
1. What is the difference between galvanised steel and cold-rolled steel without coating?
Cold-rolled steel without coating (black) begins to rust at first contact with water. Galvanised steel is covered with a zinc layer protecting it from corrosion. Black steel cannot be used for facades and roofing — only galvanised steel.
2. Do I need to paint galvanised steel?
Painting is not required but is advisable. Bare galvanising dulls over time and may develop white coating (zinc oxide). Painting provides the desired colour, additionally protects against ultraviolet radiation and extends service life by 1.5–2 times.
3. Can galvanised steel be used for residential building facades?
Yes, especially painted. Galvanised facade cassettes are used for both residential and commercial buildings. It is important to select the correct galvanising class (not lower than 140) and preferably polymer coating.
4. What is the service life of galvanised roofing?
With coating class 200 and temperate climate — 25–35 years. With class 275 and PVDF painting — up to 50 years. For comparison: aluminium lasts 30–50 years, copper — 80+ years.
5. What is cheaper — galvanised steel or aluminium?
Galvanised steel is significantly cheaper than aluminium (2–3 times). It is also stronger. The disadvantage — it is heavier, which increases load on load-bearing structures and requires more powerful sub-framing.
Economical and technological solution for facades
Galvanised steel coil in rolls is an economical, strong and technological solution for facades, roofing and rainwater systems. Properly selected zinc coating class and painting type ensure 25–50 years service life. Roll format is convenient for transportation and minimises joints.
If you want to buy galvanised steel coil in rolls for facade finishing and architecture from the manufacturer, contact Cladding Solutions. You will receive quality material with uniform coating, any thickness and width, at manufacturer prices for galvanised steel coil per m² in Moscow. Delivery throughout Russia. Make your project reliable and budget-friendly