Product Name: 55% Al-Zn Alloy Coated Corrugated Sheet

Overview

Manufactured with a continuous hot-dip process that applies a dense alloy coating of 55% Aluminum, 43.4% Zinc, and 1.6% Silicon to the steel substrate (ASTM A792 compliant). It offers 2-6 times better corrosion resistance than standard galvanized steel and can withstand temperatures up to 480°C, ensuring long-term protection and a service life exceeding 25 years. Ideal for industrial, agricultural, and high-temperature applications.

Technical Specifications

Key Advantages

Superior Corrosion Resistance

Synergistic Protection: Aluminum forms a tight barrier against atmospheric corrosion, while zinc provides sacrificial protection at cut edges and scratches.

Long Service Life: 2-6x longer life than GI steel in harsh industrial and marine environments.

Excellent Heat Resistance & Reflectivity

Withstands temperatures up to 480°C without oxidation, suitable for factories and drying facilities.

High solar reflectance (≥75%) reduces heat gain, lowering cooling costs.

Cost-Effectiveness

More economical, as a thinner coating can often be used to achieve the same corrosion performance as thicker GI coatings.

Lower total cost of ownership due to minimal maintenance and long life.

Aesthetic & Structural Strength

Available with a spangle-free, smooth surface for a clean appearance, ready for painting or direct use.

The corrugated profile provides high structural strength, excellent span capability, and wind uplift resistance.

Typical Applications

Industrial & Logistics: Roofing and wall cladding for factories, warehouses, and workshops.

Agricultural Buildings: Livestock barns, grain storage, greenhouses.

High-Temperature & Special Environments: Drying rooms, boiler houses, chemical storage.

Commercial & Public Facilities: Shopping malls, stadiums, and railway platforms.

Get Your Corrugated Galvalume Metal Roofing Sheets Quote Now!

Runying Steel Group Company occasionally has low/mild/high carbon discount steel products for sale at a low price. For more information, please follow our public Facebook page (https://www.facebook.com/tangsteel) or contact our sales team directly.