0.09–3.8mm 40–450g/m² Hot Dipped Galvanized Steel Coil SGCC DX51D+Z for Construction and Manufacturing Applications

0.09–3.8mm 40–450g/m² Hot Dipped Galvanized Steel Coil SGCC DX51D+Z for Construction and Manufacturing Applications

1. Product Overview

Hot dipped galvanized steel coil is produced by immersing cold rolled steel into molten zinc, forming a metallurgical bonding coating layer that provides corrosion resistance and durability in atmospheric environments.

The coating range of 40–450 g/m² allows the product to be used from general indoor applications to high-corrosion outdoor environments.

2. Technical Solution

Performance is based on:

• Zinc coating acting as sacrificial protection
• Uniform coating thickness for stable corrosion resistance
• Controlled mechanical properties suitable for forming and structural use

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3. Specifications

4. Application

• Construction roofing and wall systems
• Structural components
• Automotive parts
• Household appliances
• General fabrication and industrial use

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5. Processing

• Slitting
• Cut-to-length (sheet production)
• Roll forming
• Bending and stamping

6. Advantages

• Wide coating range (40–450 g/m²) for different environments
• Stable surface condition for downstream processing
• Good formability based on cold rolled substrate
• Adaptable to multiple international standards

7. How to Choose

• Indoor use → 40–120 g/m²
• Outdoor construction → 120–275 g/m²
• High corrosion areas → 275–450 g/m²
• Painting application → Anti-fingerprint surface preferred

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8. FAQ

Q1: Why is the coating range up to 450 g/m²?
Higher coating improves corrosion resistance for harsh environments.

Q2: What is the difference between spangle types?
Spangle affects surface appearance and coating structure visibility.

Q3: Can coils be processed into sheets?
Yes, galvanized sheets are produced by cutting from coils.

Q4: What standards are supported?
ASTM A653, JIS G3302, and EN 10147 are commonly used.