🟪 Product Overview

Hot‑Dip Galvanized (HDG) Steel Plate is produced by immersing carbon steel into a molten zinc bath, forming a metallurgically bonded zinc‑iron alloy layer that provides:

• Excellent corrosion resistance
• Long‑term durability in outdoor environments
• Strong adhesion and scratch resistance
• Good weldability and formability

HDG steel plate is widely used in construction, infrastructure, automotive, HVAC, and industrial manufacturing.

🟪 Product Specifications

• Thickness: 0.3 – 3.0 mm
• Width: 600 – 1500 mm
• Length: Custom lengths available
• Zinc Coating (HDG):
  • Z40 / Z60 / Z80 / Z100 / Z120 / Z140 / Z180 / Z275
• Standards:
  • ASTM A653
  • JIS G3302
  • EN 10346
• Surface Types:
  • Regular Spangle
  • Zero Spangle
  • Skin‑Passed
• Surface Treatment:
  • Chromated
  • Oiled
  • Dry
  • Anti‑fingerprint

🟪 Key Features

• Strong corrosion resistance
• Durable zinc coating with excellent adhesion
• Good formability and weldability
• Long service life in outdoor environments
• Cost‑effective protective steel solution
• Suitable for structural and industrial applications

🟪 Included Grades

Commercial Grades

• DX51D / DX52D
• SGCC / SGCH

Structural Grades

• S250GD / S280GD / S350GD

🟪 Mechanical Properties (Typical)

Grade	Yield Strength	Tensile Strength	Elongation	Notes
DX51D	≥140 MPa	270–500 MPa	≥22%	Standard HDG steel
S250GD	≥250 MPa	330–500 MPa	≥20%	Structural grade
S350GD	≥350 MPa	420–550 MPa	≥18%	High‑strength grade

🟪 Chemical Composition (Typical)

Grade	C (%)	Mn (%)	Si (%)	P (%)	S (%)	Notes
DX51D	≤0.12	≤0.60	≤0.50	≤0.10	≤0.045	Standard GI steel
S350GD	≤0.20	≤1.70	≤0.60	≤0.10	≤0.045	High‑strength

🟪 Physical Properties (General)

• Density: 7.85 g/cm³
• Corrosion Resistance: High
• Zinc Adhesion: Excellent
• Service Life: 10–30 years depending on zinc coating
• Surface Smoothness: Regular or zero spangle

🟪 Applications

• Roofing and wall panels
• Construction and structural components
• HVAC ducts and ventilation systems
• Automotive parts
• Electrical cabinets and appliances
• Agricultural equipment
• Industrial fabrication

🟪 Why Use It

Hot‑dip galvanized steel plate provides durable, long‑lasting corrosion protection, making it ideal for outdoor, structural, and industrial applications. Its zinc coating ensures excellent resistance to rust, moisture, and harsh environments, while maintaining good formability and weldability.

🟪 Why Choose Jaron Steel

• Full range of HDG steel plates (Z40–Z275)
• Multiple grades: DX51D / SGCC / S250GD / S350GD
• Precision cutting and custom sizes
• SGS / BV / TUV inspection available
• Export‑grade seaworthy packaging