Steel Sheet & Coil Processing Services
Know About Panhua Group
  • China’s largest private steel sheet manufacturer
  • 48 production lines across 5 manufacturing facilities
  • Annual capacity of up to 15 million tonnes, with 800,000 tonnes in stock
E-mail: phsales1@panhuagroup.com
Mobile: +86-13390839803
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To get the quick quote, please specify the specification, grade, zinc layer thickness, surface with/ spangle pattern, coil inner diameter, coil weight, etc.

Galvanized steel products are used by a wide range of customers, including:

  • Building material manufacturers
  • Furniture manufacturers
  • Automotive manufacturers
  • Container manufacturers
  • Metal product industries
  • Transportation equipment manufacturers
  • Product distributors

Galvanized steel for architectural use is designed to fully meet wind resistance requirements for roofs and wall panels. With a high-strength substrate (yield strength of 280-550 MPa) paired with a Z120-Z275 zinc coating, these products have passed the GB/T 23930 wind pressure test, confirming their ability to withstand extreme wind loads.

Galvanized steel for appliances supports special anti-bacterial and corrosion-resistant treatments. This includes anti-bacterial coatings with silver or copper ions (anti-bacterial rate of ≥99%), chrome-free passivation technology (salt spray corrosion resistance of ≥120 hours), and zinc-aluminum-magnesium composite coatings, which enhance corrosion resistance by up to 3 times. All our products are verified through SGS certification.

Automotive-grade galvanized steel is fully compliant with mainstream OEM standards. It offers excellent formability (drawing ratio ≥2.1), weldability (spatter rate ≤3%), and corrosion resistance (salt spray ≥720 hours).

Galvanized steel keels offer excellent compatibility with lightweight partition walls, such as gypsum boards, calcium silicate boards, and ALC boards. The high galvanized coating (≥275 g/m²), optimal cross-section design, and compatible construction process effectively meet requirements for strength, durability, and seismic resistance.

The annual corrosion rate of our aluminum-zinc coated steel (AZ150) in an environment containing fertilizer dust is approximately 0.5–2.0 micrometers per year.

The lifespan of outdoor galvanized steel in humid or coastal environments varies depending on the coating:

  • Conventional Galvanized Steel (Z120-Z275): 8-15 years
  • Zinc-Aluminum-Magnesium Coated (ZM): 20-30 years
  • Aluminum-Zinc Coated (AZ): 25-35 years
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