Galvanized Steel Coil and Strip
Premium quality galvanized steel coils and strips by Hengze Steel, SGS-certified for superior corrosion resistance and durability.
Galvanized Steel Coil and Strip Manufacturer
Hengze Steel produces high-quality hot-dip galvanized steel coils with superior corrosion resistance, strength, and long-term durability. Using advanced galvanizing lines and strict quality control, we ensure a consistent zinc coating and smooth surface finish.
Our galvanized steel coils are coated by immersing cold-rolled steel into a bath of molten zinc. This process forms a strong bond between the zinc and base steel, providing excellent protection against rust, oxidation, and harsh weather conditions.
We offer a wide range of zinc coating weights (Z30–Z275), thicknesses, and surface finishes including regular spangle, zero spangle, and minimized spangle. Surface treatments such as chromate, anti-fingerprint, and oiling are also available.
Hengze galvanized coils are widely used in roofing, wall cladding, light steel framing, appliances, automotive parts, and HVAC systems. Custom specifications are available to meet your exact needs.
Choose Hengze Steel for reliable galvanized steel solutions that combine performance, durability, and competitive pricing — trusted by customers worldwide.
Galvanized Coil Specification
| Zinc Coating | 30–275 g/m² |
| Thickness | 0.13–4.0 mm |
| Width | 600–1500 mm |
| Coil ID | 508 mm / 610 mm |
| Coil Weight | 3–8 tons per coil |
| Surface Spangle | Regular, Mini, Zero (for aesthetic or functional requirements) |
| Surface Treatment | Chromated, Oiled, Unoiled, Anti-fingerprint (AFP) coating optional |
| Production Standard | ASTM, JIS, EN, GB (Manufactured to global quality benchmarks) |
Steel Strip Specifications
| Specification | Details |
|---|---|
| Thickness | 0.3–5.0 mm for regular spangle; 0.6–1.8 mm for zero spangle, meeting ASTM A653 standards. |
| Width | 32–860 mm, customizable to fit various processing needs. |
| Coating Weight | 50–275 g/m² zinc coating (G50 to G275), ensuring excellent corrosion protection. |
| Inner Diameter | Standard 508 mm or 610 mm, suitable for most coil handling equipment. |
| Surface Structure | Regular and zero spangle options for aesthetic and functional requirements. |
| Surface Treatment | Environmental and conventional chromate treatments to enhance corrosion resistance. |
Common Classifications of Galvanized Steel Coil (DX51D+Z100 to Z275)
DX51D+Z100 Galvanized Steel Coil
High-quality DX51D+Z100 galvanized steel coil with excellent corrosion resistance, ideal for indoor structures and general forming needs.
DX51D+Z140 Galvanized Steel Coil
Durable DX51D+Z140 galvanized steel coil designed for appliances, light construction, and superior surface finish applications.
DX51D+Z150 Galvanized Steel Coil
Premium DX51D+Z150 galvanized steel coil offering balanced strength and protection for roofing, siding, and decorative panels.
DX51D+Z200 Galvanized Steel Coil
Reliable DX51D+Z200 galvanized steel coil featuring thicker coating for automotive, machinery, and heavy-duty industrial uses.
DX51D+Z275 Galvanized Steel Coil
Robust DX51D+Z275 galvanized steel coil with maximum corrosion resistance for outdoor structures, roofs, and wall cladding.
S350GD+Z275 Galvanized Steel Coil
High-strength S350GD+Z275 galvanized steel coil engineered for load-bearing applications in construction and structural projects.
DX52D+Z140 Galvanized Steel Coil
Formable DX52D+Z140 galvanized steel coil suitable for deep drawing processes, precision stamping, and high-quality appliance parts.
Surface Finishes
Regular Spangle: This is the most common surface finish for galvanized steel coils, characterized by visible crystalline patterns formed naturally during the zinc coating’s solidification and cooling process. Hengze Steel’s regular spangle finish ensures consistent quality and optimal corrosion protection for diverse industrial applications.
Mini Spangle: Compared to regular spangle, the mini spangle finish features finer, less pronounced crystal patterns, offering a smoother and more uniform appearance. Hengze’s mini spangle galvanized coils are ideal for architectural and decorative uses where aesthetics and performance are equally important.
Applications and Recommended Specifications
Roofing and Cladding
Our galvanized coils with zinc coating of 275 gsm and thickness from 0.40 mm provide strong weather protection, ideal for roofing and external cladding applications.
Structural Components
For purlins and structural frames, we supply high-strength strips with zinc coating above 275 gsm and thickness from 1.50 mm, ensuring durability and corrosion resistance.
Pipes and Tubes
Galvanized coils with 180 gsm zinc coating and minimum 0.60 mm thickness suit industrial pipes and tubes, offering excellent protection against rust and wear.
Cable Trays and Electrical Systems
We recommend galvanized strips with 275 gsm zinc coating and 1.00 mm thickness, designed for durable cable trays and electrical infrastructure.
Additional Applications
HengZe galvanized steel is also used in automotive, appliances, HVAC ducts, and agricultural machinery, providing reliable corrosion protection and strength.
| Grade | Type | Yield Strength(min, MPa) | Tensile Strength(min, MPa) | Elongation(min, 50 mm, %) |
|---|---|---|---|---|
| CS Type A | Commercial Steel | 140 | 270 | 28 |
| CS Type B | Commercial Steel | 205 | 310 | 26 |
| CS Type C | Commercial Steel | 275 | 340 | 24 |
| FS Type A | Forming Steel | 140 | 270 | 30 |
| FS Type B | Forming Steel | 205 | 310 | 28 |
| DDS | Deep Drawing Steel | 140 | 270 | 34 |
| EDDS | Extra Deep Drawing | 140 | 270 | 36 |
| SS33 | Structural Steel | 230 | 310 | 20 |
| SS37 | Structural Steel | 250 | 340 | 18 |
| SS40 | High Strength Steel | 275 | 380 | 16 |
| SS50 | High Strength Steel | 345 | 450 | 14 |
| HSLAS-F | HSLA Formable Steel | 340–550 | 420–620 | 20–25 |
| Grade | Yield Strength(min, MPa) | Tensile Strength(MPa) | Elongation(min, %) |
|---|---|---|---|
| DX51D | 140 | 270–500 | 22 |
| DX52D | 140 | 270–420 | 26 |
| DX53D | 140 | 260–400 | 28 |
| DX54D | 120 | 260–380 | 30 |
| DX56D | 100 | 260–360 | 36 |
| S220GD | 220 | 270–370 | 22 |
| S250GD | 250 | 330–430 | 20 |
| S280GD | 280 | 360–480 | 18 |
| S320GD | 320 | 390–510 | 16 |
| S350GD | 350 | 420–560 | 14 |
| S550GD | 550 | 570–720 | 10 |
| HX260LAD+Z | 260 | 340–440 | 22 |
| HX340LAD+Z | 340 | 410–510 | 20 |
| Grade | Yield Strength(min, MPa) | Tensile Strength(MPa) | Elongation(min, %) |
|---|---|---|---|
| G250 | 250 | 320–380 | 20 |
| G300 | 300 | 370–430 | 18 |
| G350 | 350 | 420–480 | 16 |
| G450 | 450 | 480–550 | 14 |
| G500 | 500 | 510–650 | 12 |
| G550 | 550 | 550–700 | 8 |
| G250S | 250 | 320–380 | 22 |
| G300S | 300 | 370–430 | 20 |
| G350S | 350 | 420–480 | 18 |
Why Choose Hengze Steel Galvanized Steel Coil?
Hengze Steel manufactures hot-dip galvanized steel coils that fully comply with ASTM A653, EN 10346, and AS 1397 standards. Using advanced galvanizing technology, we ensure a strong zinc-steel bond for long-lasting protection against corrosion, rust, and harsh environments.
Key Specifications
Zinc Coating: Z40–Z275 / G40–G90
Thickness: 0.13 – 1.20 mm
Width: Up to 1500 mm
Spangle: Regular, Zero, Mini, Large
Finish: Chromated, Oiled, Dry
Quality You Can Trust
All products are SGS-certified and customizable in coating, grade, and finish. Hengze delivers dependable galvanized steel solutions tailored to construction, manufacturing, and industrial needs.
Frequently Asked Questions
The service life of galvanized steel coils depends on the zinc coating thickness, environmental conditions, and maintenance. In dry environments, they can last 20–30 years. For coastal or humid areas, a heavier zinc coating (e.g., Z275) is recommended for better corrosion resistance.
Prices vary based on steel base prices, zinc ingot costs, coil thickness, coating grade, and market supply-demand trends. For accurate pricing, it’s best to request a custom quote from the supplier.
Yes. Galvanized coils are often lightly oiled to prevent oxidation and rust during storage and transportation. Customers can also choose dry or oiled surfaces based on specific processing requirements.
Galvanized steel can be cut using laser or plasma cutting and welded using proper methods. However, special ventilation and fume extraction systems should be used due to zinc fumes generated during welding.
Common standards include ASTM A653, JIS G3302, and EN 10346. Popular grades such as SGCC, DX51D, and S280GD offer different mechanical properties for forming, strength, and corrosion resistance.
Get a Quote Today
At HengZe Steel, we specialize in supplying premium Zinc-Aluminum-Magnesium (ZAM) coated steel coils designed for superior corrosion resistance and extended service life.
Whether you require detailed product specifications, competitive pricing, or expert technical support, our experienced team is dedicated to assisting you at every stage.
👉 Or email us at sales@hengzesteel.com.
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