Chromated ASTM A653 Hot Dipped Galvanized Steel Coil for Lampshade and Furniture

Product Specification

Chromated ASTM A653 Hot Dipped Galvanized Steel Coil for Lampshade and Furniture Fabrication with 0.09–3.8mm Thickness

1. Product Overview

Hot dipped galvanized steel coil for lampshade and furniture fabrication is mainly used where corrosion resistance, stable surface condition, and forming performance are required. The zinc coating protects the steel substrate from oxidation, while chromated surface treatment helps improve storage stability and subsequent handling.

For lampshade panels, counters, signboards, and light fabricated furniture parts, buyers usually focus on spangle condition, coating weight, and sheet-forming performance. In these applications, the material is commonly supplied in coil form and then processed into cut-to-length sheets or slit strips according to drawing requirements.

2. Technical Solution

Product performance is based on the following technical characteristics:

• Continuous hot-dip galvanizing with controlled zinc coating mass
• Zinc layer providing barrier protection and sacrificial protection
• Chromated surface treatment improving temporary corrosion resistance
• Selectable spangle condition for visible appearance and downstream finishing
• Balanced strength and elongation for bending, stamping, and light fabrication

For furniture and lampshade parts, surface appearance is often as important as corrosion resistance. Minimized or zero spangle is commonly selected when cleaner visible finish or later coating is required, while chromated treatment helps protect the surface during storage and transport.

3. Specifications

4. Application

• Lampshade panels and decorative sheet components
• Furniture panels, counters, and signboards
• Medical facility sheet parts
• Appliance housings and light enclosures
• Electrical cabinets and indoor fabricated panels
• General sheet metal fabrication for indoor and semi-exposed use

5. Processing

• Cut-to-length sheet production
• Slitting into narrow strips
• Bending and folding
• Stamping and light drawing
• Punching and edge forming
• Surface coating or painting when required

6. Advantages

• Chromated surface helps improve storage stability before fabrication
• Spangle options support both decorative and industrial appearance requirements
• Suitable for lampshade, furniture, and light sheet fabrication
• Balanced mechanical properties support bending and stamping operations
• Wide thickness and width range supports different panel and sheet sizes
• Coil supply improves efficiency for continuous sheet production

7. How to Choose

• Visible decorative parts → minimized or zero spangle is usually preferred
• General indoor furniture fabrication → medium coating level is commonly selected
• Longer storage before processing → chromated surface is commonly used
• Painting or later surface finishing → anti-finger or minimized spangle may be preferred
• Cut-to-length sheet production → confirm width and coil ID with equipment capacity

8. FAQ

Q1: Which spangle type is suitable for lampshade applications?
For visible decorative parts, minimized spangle or zero spangle is usually preferred because the surface looks more uniform.

Q2: What is the benefit of chromated surface treatment?
It helps improve temporary corrosion resistance and protects the surface during storage and transport.

Q3: Can the coil be supplied as sheets for furniture fabrication?
Yes, the coil can be processed into cut-to-length sheets or slit strips according to fabrication requirements.

Q4: Is this material suitable for bending and stamping?
Yes, elongation of 12–25% supports common sheet metal operations such as bending, stamping, and light drawing.

Q5: What coating level is commonly used for indoor furniture and decorative parts?
For general indoor use, medium coating levels are commonly selected, while higher coating levels are used when stronger corrosion resistance is required.