Gnee Steel (tianjin) Co., Ltd.
                                                                                                           
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High Strength Galvanized Steel Coil S550GD+Z with 550MPa Tensile Strength for Structural Steel Framing

Price Negotiable
Price: Negotiable
MOQ: 10 Ton
Delivery Time: Negotiable
Brand: Gnee
Product Description
High Strength Galvanized Coil S550GD+Z
Premium galvanized steel coil with 550MPa tensile strength, specifically engineered for structural steel framing applications requiring exceptional durability and corrosion resistance.
Product Overview
Galvanized steel coil is manufactured through a continuous hot-dip galvanizing process where steel sheets are immersed in molten zinc, creating a protective zinc coating that bonds permanently to the surface. This process ensures superior corrosion protection and extended service life.
Product Name
High Strength Galvanized Coil S550GD+Z
Wall Thickness
0.13mm - 4mm
Outer Diameter
600mm - 1500mm
Technique
Hot-Dip Galvanized Metal Coil
Minimum Order Quantity
5 Tons (volume discounts available)
Delivery Time
10-45 days after advance payment
Key Features & Applications
  • Exceptional corrosion resistance through zinc coating protection
  • High-quality surface finish for superior appearance
  • 550MPa minimum tensile strength for structural integrity
  • Widely used in construction, structural framing, and industrial applications
  • Suitable for automotive components, containers, and transportation equipment
  • Ideal for家电 appliances and building materials
Packaging & Surface Treatment
Available in bundled packaging with optional colored PVC wrapping. Custom packaging solutions available to meet specific requirements.
Surface Treatment Options:
  • Transparent anti-rust oil coating
  • Custom treatments according to client specifications
Quality Certifications
Certified to API ISO9001-2008 standards with additional verification from SGS and Bureau Veritas (BV) for quality assurance.
Technical Specifications
Usage Grade Yield Strength (MPa) Tensile Strength (MPa) Elongation Rate %
Punching Galvanized Steel DX51D+Z - 270-500 ≥20
DX52D+Z 140-300 270-420 ≥22
DX53D+Z 140-260 270-380 ≥26
DX54D+Z 140-220 270-350 ≥30
Structure Galvanized Steel S220GD+Z ≥220 ≥300 ≥18
S250GD+Z ≥250 ≥330 ≥17
S280GD+Z ≥280 ≥360 ≥16
S320GD+Z ≥320 ≥390 ≥15
S350GD+Z ≥350 ≥420 ≥14
S400GD+Z ≥400 ≥470 -
S500GD+Z ≥500 ≥530 -
S550GD+Z ≥550 ≥560 -
Product Images
High strength galvanized steel coil S550GD+Z product display Galvanized coil manufacturing process and quality inspection Structural steel framing applications using S550GD+Z galvanized coils

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Gnee Steel (tianjin) Co., Ltd.
Location FLAT/RM 1512 15/F LUCKY CENTRE NO.165-171 WAN CHAI ROAD WAN CHAI HK
Contact Person Kelly Zhang

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