🟪 Product Overview

Galvalume Steel Plate (GL), also known as Aluzinc Steel Plate, is coated with a 55% aluminum, 43.5% zinc, and 1.5% silicon alloy, providing:

• Superior corrosion resistance (2–3× HDG)
• Excellent heat reflectivity
• Strong oxidation resistance
• Longer outdoor service life
• Smooth, bright metallic appearance

GL steel plate is widely used in roofing systems, building panels, HVAC ducts, automotive components, and industrial equipment.

🟪 Product Specifications

• Thickness: 0.3 – 3.0 mm
• Width: 600 – 1500 mm
• Length: Custom lengths available
• Al‑Zn Coating (GL):
  • AZ50 / AZ70 / AZ100 / AZ150 / AZ185
• Standards:
  • ASTM A792
  • JIS G3321
  • EN 10346
• Surface Types:
  • Regular Spangle
  • Zero Spangle
• Surface Treatment:
  • Chromated
  • Oiled
  • Dry
  • Anti‑fingerprint

🟪 Key Features

• 2–3× corrosion resistance of HDG
• Excellent heat reflectivity
• Strong oxidation resistance
• Smooth and attractive metallic appearance
• Good formability and weldability
• Long service life in outdoor environments

🟪 Included Grades

Commercial Grades

• SGLC / SGLCC / SGLCD

Structural Grades

• SGLC490 / SGLC590

🟪 Mechanical Properties (Typical)

Grade	Yield Strength	Tensile Strength	Elongation	Notes
SGLCC	≥140 MPa	270–410 MPa	≥22%	Standard GL steel
SGLC490	≥490 MPa	550–650 MPa	≥16%	High‑strength

🟪 Chemical Composition (Typical)

Element	Content (%)
C	≤0.12
Mn	≤0.60
Si	≤0.50
P	≤0.10
S	≤0.045

🟪 Physical Properties (General)

• Density: 7.85 g/cm³
• Corrosion Resistance: Very high
• Heat Reflectivity: Excellent
• Service Life: 20–40 years depending on coating
• Surface Smoothness: High

🟪 Applications

• Roofing and wall panels
• HVAC ducts and ventilation systems
• Automotive parts
• Electrical cabinets and appliances
• Agricultural equipment
• Industrial fabrication
• Outdoor structures and enclosures

🟪 Why Use It

Galvalume steel plate provides superior corrosion resistance, excellent heat reflectivity, and long‑term durability, making it ideal for roofing, construction, and industrial applications where HDG steel is not sufficient.

🟪 Why Choose Jaron Steel

• Full range of GL steel plates (AZ50–AZ185)
• High‑quality Al‑Zn coating for long service life
• Precision cutting and custom sizes
• SGS / BV / TUV inspection available
• Export‑grade seaworthy packaging