Gi Steel Coil

Jiangsu Pioneer Technology Co., Ltd. is one of the leading manufacturers and suppliers of gi steel coil in China. Welcome to buy durable gi steel coil made in China here and get free sample from our factory. Customized orders are welcome.

As the fundamental backbone of the metal construction industry, our GI steel coil represents the pinnacle of raw material quality and consistency. This product category is available in two primary variants: PPGI (Pre-Painted Galvanized Iron) and PPGL (Pre-Painted Galvalume Iron) coils, serving as the essential starting point for countless fabricated products. PPGI coil utilizes a galvanized steel substrate, offering an optimal balance between cost and performance for general manufacturing. In contrast, PPGL coil features a sophisticated aluminum-zinc plated substrate (55% aluminum) and is treated with a special primer to enhance coating adhesion, delivering up to three times the corrosion resistance of standard PPGI, making it the premier choice for components destined for coastal and high-temperature environments.

The core value of our GI steel coil lies in its exceptional uniformity and processability. The coating is applied with precision, resulting in a thickness tolerance of just ±1μm, guaranteeing a surface free from pinholes and color inconsistencies. This coil boasts an elongation of ≥15% and a yield strength ranging from 235-550MPa, making it perfectly suited for demanding fabrication processes including cold bending, stamping, and high-speed roll forming. This GI steel coil ensures that manufacturers can achieve high production efficiency and superior end-product quality, reducing waste and rejection rates.

This GI steel coil is the primary raw material for producing industrial roofing and wall panels, garage doors, and ceiling systems. Its consistent quality also makes it a preferred choice for the home appliance industry, used in the manufacturing of refrigerator cabinets, washing machine outer drums, and HVAC housings.

Our production is certified under ISO 9001 for quality management and ISO 14001 for environmental management. For European markets, our coils comply with CE marking requirements and relevant ASTM and EN standards.

We implement a rigorous three-stage quality control process. This includes raw material inspection (verifying substrate chemical composition), in-process monitoring (controlling plating temperature and coating viscosity), and finished product testing (adhesion, impact resistance, and salt spray tests).

To protect the product during transit, we use a multi-layer packaging system consisting of a moisture-proof paper tube inner layer, a protective PE film, and an outer kraft paper layer, all designed to be waterproof and anti-scratch. We offer flexible delivery terms (FOB/CIF) with domestic delivery in 3-7 days and overseas shipping in 20-35 days.

We provide a 10-15 year quality guarantee (10 years for modified polyester, 15 years for PVDF). Our technical support extends to processing guidance, helping customers optimize bending parameters and avoid production defects.