DX51D G30 1000mm Hot Dipped Galvanized Steel Coil for Roofing and Appliance

Product Specification

DX51D G30 1000mm Hot Dipped Galvanized Steel Coil for Roofing and Appliance Panel Processing

1. Product Overview

DX51D G30 hot dipped galvanized steel coil is used in sheet processing lines where forming stability, surface protection, and dimensional consistency are required. The 1000 mm width is suitable for common cut-to-length, slitting, and roll forming equipment, especially in roofing accessories, appliance panels, and light industrial sheet fabrication.

As a galvanized coil, the material uses a zinc coating to protect the steel surface during storage, transport, and service. For applications in controlled indoor conditions or parts that will receive additional processing or coating, G30 is often considered as a practical coating level within the overall GI coating range.

2. Technical Solution

Product performance is based on the following technical characteristics:

• Continuous hot dip galvanizing with controlled zinc coating mass
• DX51D grade suitable for common bending and forming operations
• 1000 mm coil width matching mainstream processing lines
• Optional chromated, oiled, or anti-finger surface for storage and downstream handling
• Spangle selection according to appearance and finishing requirements

In practical production, coating level affects corrosion resistance, while grade and elongation affect forming behavior. For panels, covers, and profiled sheet parts, the balance between zinc protection and workable formability is usually more important than extreme strength.

3. Specifications

4. Application

• Roofing sheets and roofing accessories
• Appliance outer panels and internal sheet parts
• Electrical cabinets and light enclosures
• Ventilation and duct-related sheet components
• General cut-to-length sheet fabrication
• Light industrial formed parts

5. Processing

• Cut-to-length sheet production
• Slitting into narrower strips
• Roll forming for roofing profiles
• Bending and folding
• Stamping and punching
• Surface painting or further coating when required

6. Advantages

• 1000 mm width is convenient for standard panel and strip processing lines
• DX51D grade supports common forming, bending, and light fabrication
• G30 coating can be used where moderate corrosion protection is sufficient
• Multiple spangle options allow matching of surface appearance needs
• Chromated, oiled, and anti-finger surfaces support storage and downstream handling
• Standard coil format improves continuous processing efficiency

7. How to Choose

• Indoor appliance or enclosed sheet parts → G30 or similar lower coating may be considered
• General roofing or outdoor exposure → higher coating level is usually preferred
• Visible galvanized finish → choose spangle according to appearance requirement
• Painting or further finishing → minimized spangle or anti-finger surface is often preferred
• Continuous production lines → confirm 1000 mm width, coil ID, and coil weight with equipment capacity

8. FAQ

Q1: What does G30 mean in galvanized steel coil?
G30 is a coating designation within the galvanized coating range and is generally used where moderate surface protection is acceptable.

Q2: Is DX51D suitable for bending and panel forming?
Yes, DX51D is widely used for common forming applications such as panels, enclosures, and light profiled parts.

Q3: Can this coil be supplied for cut-to-length sheets?
Yes, it can be processed into sheets or slit strips according to downstream production requirements.

Q4: Which surface treatment is suitable for storage before processing?
Passivated or oiled surface is commonly selected to improve temporary corrosion resistance during storage and transport.

Q5: Is 1000 mm width suitable for roofing and appliance processing lines?
Yes, 1000 mm is a common working width for sheet processing, panel fabrication, and profile forming lines.