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

Galvanized steel coil production
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

Zinc-Coated Steel Strip
SpecificationDetails
Thickness0.3–5.0 mm for regular spangle; 0.6–1.8 mm for zero spangle, meeting ASTM A653 standards.
Width32–860 mm, customizable to fit various processing needs.
Coating Weight50–275 g/m² zinc coating (G50 to G275), ensuring excellent corrosion protection.
Inner DiameterStandard 508 mm or 610 mm, suitable for most coil handling equipment.
Surface StructureRegular and zero spangle options for aesthetic and functional requirements.
Surface TreatmentEnvironmental and conventional chromate treatments to enhance corrosion resistance.

Common Classifications of Galvanized Steel Coil (DX51D+Z100 to Z275)

Galvanized Steel Coil

DX51D+Z100 Galvanized Steel Coil

High-quality DX51D+Z100 galvanized steel coil with excellent corrosion resistance, ideal for indoor structures and...

Galvanized Steel Coil

DX51D+Z140 Galvanized Steel Coil

Durable DX51D+Z140 galvanized steel coil designed for appliances, light construction, and superior surface finish applications.

Galvanized Steel Coil

DX51D+Z150 Galvanized Steel Coil

Premium DX51D+Z150 galvanized steel coil offering balanced strength and protection for roofing, siding, and.

Galvanized Steel Coil

DX51D+Z200 Galvanized Steel Coil

Reliable DX51D+Z200 galvanized steel coil featuring thicker coating for automotive, machinery, and heavy-duty industrial uses.

DX52D+Z Galvanized Steel Coil

DX51D+Z275 Galvanized Steel Coil

Robust DX51D+Z275 galvanized steel coil with maximum corrosion resistance for outdoor structures, roofs, and wall cladding.

DX52D+Z Galvanized Steel Coil

S350GD+Z275 Galvanized Steel Coil

High-strength S350GD+Z275 galvanized steel coil engineered for load-bearing applications in construction and structural...

DX52D+Z Galvanized Steel Coil

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

Surface treatment

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

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

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

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

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

Additional Applications

HengZe galvanized steel is also used in automotive, appliances, HVAC ducts, and agricultural machinery, providing reliable corrosion protection and strength.

GradeTypeYield Strength(min, MPa)Tensile Strength(min, MPa)Elongation(min, 50 mm, %)
CS Type ACommercial Steel14027028
CS Type BCommercial Steel20531026
CS Type CCommercial Steel27534024
FS Type AForming Steel14027030
FS Type BForming Steel20531028
DDSDeep Drawing Steel14027034
EDDSExtra Deep Drawing14027036
SS33Structural Steel23031020
SS37Structural Steel25034018
SS40High Strength Steel27538016
SS50High Strength Steel34545014
HSLAS-FHSLA Formable Steel340–550420–62020–25
GradeYield Strength(min, MPa)Tensile Strength(MPa)Elongation(min, %)
DX51D140270–50022
DX52D140270–42026
DX53D140260–40028
DX54D120260–38030
DX56D100260–36036
S220GD220270–37022
S250GD250330–43020
S280GD280360–48018
S320GD320390–51016
S350GD350420–56014
S550GD550570–72010
HX260LAD+Z260340–44022
HX340LAD+Z340410–51020
GradeYield Strength(min, MPa)Tensile Strength(MPa)Elongation(min, %)
G250250320–38020
G300300370–43018
G350350420–48016
G450450480–55014
G500500510–65012
G550550550–7008
G250S250320–38022
G300S300370–43020
G350S350420–48018

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.

  1. 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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