G90 Galvanized Steel Coil / Sheet
Premium corrosion-resistant galvanized steel with 0.90 oz/ft² (Z275) zinc coating, ideal for roofing, construction, automotive, appliances, and industrial applications.
G90 Hot-Dipped Galvanized Steel Coil & Sheet (ASTM A653 / Z275 Equivalent)
G90 hot-dipped galvanized steel sheet and coil (ASTM A653/A924) offers outstanding corrosion resistance, durability, and formability. With a coating weight of 0.90 oz/ft² (≈ Z275 / 275 g/m²), it is widely used in construction, roofing, automotive, appliances, and agricultural applications. Available in customizable thickness (0.12–4.0 mm), width (600–2000 mm), and surface finish (zero spangle, small spangle, or regular spangle), G90 galvanized steel provides long-lasting performance for both structural and decorative uses.
Specifications & Technical Data
| Item | Value / Range | Notes |
|---|---|---|
| Coating Weight | G90 = 0.90 oz/ft² (total, both sides) | As per ASTM A924/A924M; total average coating weight on both sides |
| Equivalent Standard | Z275 (≈ 275 g/m², double-sided) | Equivalent designation in EN 10346 |
| Approx. Zinc Thickness | ~38–40 µm (total, both sides) / ~19–20 µm per side | Based on zinc density and coating weight conversion |
| Base Metal Thickness | 0.12 mm – 4.00 mm (customizable) | Depending on applications |
| Width | 600 mm – 2000 mm (custom sizes available) | |
| Length / Supply Form | Supplied in coil; sheets can be cut-to-length | |
| Base Steel Grades | DX51D, DX52D, DX53D, Q235, Q345, CS/FS/SS, HSLA | Meets ASTM, JIS, EN, and GB standards |
| Surface Finish | Zero Spangle, Small Spangle, Regular Spangle; chromated, phosphated, or oiled | Customizable per application |
Key Features & Advantages
Superior Corrosion Resistance
With a heavy zinc coating (≈ 275 g/m²), G90 galvanized steel provides long-lasting protection against rust, ideal for outdoor and humid environments.Excellent Formability & Weldability
Suitable for bending, punching, cutting, profiling, and welding without significant risk of coating damage under proper processing conditions.Attractive Surface Options
Available in multiple spangle patterns (zero, small, regular) and finishes, suitable for exposed or decorative applications.Cost-Effective Durability
Provides a balanced solution between cost and service life—more durable than G30/G60 coatings while more economical than heavier grades (G165, G210).International Standard Compliance
G90 is widely accepted in ASTM standards and equivalent to EN Z275, making it compatible for export and global construction projects.
Unique Selling Points
Multiple steel grades and standards available (ASTM / EN / JIS / GB) for flexible sourcing.
Custom dimensions, surface treatments, and packaging to meet project requirements.
Long service life with low maintenance costs in normal atmospheric environments.
Zero Spangle option available for applications requiring a smooth, aesthetic finish.
Applications of G90 Galvanized Steel
Hot-rolled coil offers high strength, durability, easy formability, and excellent weldability. It is widely used in:
Construction & Roofing
Roof panels, wall cladding, gutters, purlins, and framing structures
Automotive & Transportation
Chassis components, brackets, trailers, and truck bodies
Agricultural Facilities
Barns, silos, feed bins, water troughs, and farm machinery
Industrial Equipment
Ventilation ducts, electrical enclosures, machinery housings, and frameworks
Household Appliances
Refrigerator panels, oven housings, air ducts, and kitchen equipment
Outdoor Structures
Railings, staircases, shelters, doors, and window frames
Why Choose Hengze G90 Galvanized Steel?
Hengze G90 hot-dipped galvanized steel delivers superior corrosion resistance and long-lasting durability. With a 0.90 oz/ft² (Z275) zinc coating, it’s ideal for roofing, construction, automotive, appliances, and industrial applications.
Heavy-duty protection: Long-lasting rust resistance for outdoor and structural use.
High-quality steel: Strong, formable, and weldable base metal.
Custom sizes & finishes: Thickness, width, and spangle patterns tailored to your needs.
International standards: Meets ASTM A653, EN Z275, and JIS SGCC for global projects.
Choose Hengze G90 galvanized steel for reliability, durability, and versatile applications.
Frequently Asked Questions
G90 refers to a hot-dip galvanized steel sheet with a zinc coating weight of 0.90 oz/ft² (approximately 275 g/m²). This coating provides enhanced corrosion resistance, making it suitable for various applications in construction, automotive, and industrial sectors.
The number in the designation indicates the total zinc coating weight applied to both sides of the steel sheet. For instance:
G60: 0.60 oz/ft² (approximately 183 g/m²)
G90: 0.90 oz/ft² (approximately 275 g/m²)
G185: 1.85 oz/ft² (approximately 565 g/m²)
A higher number signifies a thicker zinc layer, offering better corrosion resistance and longer service life.
While G90 galvanized steel offers good corrosion resistance, for highly corrosive environments like marine or coastal areas, a heavier coating such as G115 (approximately 350 g/m²) or G185 (approximately 565 g/m²) is recommended. These coatings provide enhanced protection against saltwater-induced corrosion.
G90 galvanized steel is widely used in:
Construction: Roofing panels, wall cladding, structural components
Automotive: Chassis parts, brackets, body panels
Appliances: Refrigerator panels, oven housings
Industrial: Ductwork, machinery housings
Agricultural: Barns, silos, feed bins
Its versatility makes it a preferred choice across various industries.
G90 galvanized steel offers a long service life, typically ranging from 50 to 100 years in most atmospheric conditions. The durability is attributed to the thick zinc coating, which protects the underlying steel from corrosion. However, exposure to harsh environments may require additional protective measures.
Get a Quote Today
At Hengze Steel, we supply premium G90 Hot-Dipped Galvanized Steel Coils and Sheets, designed for superior corrosion resistance, durable zinc coating, and excellent formability. Ideal for construction, roofing, automotive, appliances, and industrial equipment.
We offer custom thicknesses, widths, and coil weights, competitive pricing, and technical support to assist you throughout your sourcing and project planning.
👉 Or email us at sales@hengzesteel.com.
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