Versatile PPGI/PPGL Coil Sheet for Industrial Fabrication & Construction

Overview

The Versatile PPGI/PPGL Coil Sheet is a foundational metallurgical product designed for high-volume industrial processing and construction applications. Available in galvanized (PPGI) or galvalume (PPGL) variants, this coil features a continuous steel strip pre-coated with protective zinc or aluminum-zinc alloy, ready for downstream processes like roll-forming, stamping, or cutting.

Manufactured in widths up to 1500mm and thicknesses from 0.12mm to 3.0mm, the coil balances corrosion resistance, formability, and cost-efficiency. The surface finish options—spangle, spangle-free, or chromated—cater to different post-processing needs, from direct painting to seamless welding.

Features

Dual Protection Systems:

PPGI (Pre-Painted Galvanized): Pure zinc coating (Z60-Z275) for general corrosion protection, ideal for indoor or mild outdoor use.

PPGL (Pre-Painted Galvalume): 55% aluminum-zinc alloy coating (AZ50-AZ150) for superior resistance in harsh, high-moisture environments.

Process Optimization:

Supplied in large coils (5-20 tons) to minimize downtime in continuous production lines.

Optional slitting services to exact widths (tolerance: +/-0.5mm) for precision fabrication.

Mechanical Versatility:

Low-carbon steel substrate offers excellent ductility for deep drawing (SPCC grade) or structural strength (Q235 grade).

High-temperature resistance: Galvalume coils withstand up to 450°C, suitable for heat exchanger components.

Surface Treatment Options:

Chromated finish for enhanced paint adhesion.

Oil-free surface for immediate welding or powder coating.

Global Compliance: Meets international standards (ASTM A653, JIS G3302, EN 10143), ensuring consistency for cross-border projects.

Application

Construction Industry: Manufactures steel frames, roof trusses, and cladding panels, providing a cost-effective, pre-protected material for rapid assembly.

Automotive Manufacturing: Forms car body panels, chassis components, and exhaust systems, combining formability with resistance to crash and corrosion.

Appliance Production: Used for refrigerator shells, washing machine drums, and air conditioner casings, requiring smooth surfaces for enamel or plastic lamination.

General Fabrication: Ideal for storage tanks, agricultural machinery, and metal furniture, supporting a wide range of cutting, bending, and welding operations.

FAQ

Q: How should I store the coils to prevent edge rust?

A: Store in dry, ventilated warehouses with pallets to elevate from the floor; use protective end caps to seal coil edges.

Q: Can I request a specific steel grade for the substrate?

A: Yes, we offer coils in SPCC, SGCC, Q235, and SS400 grades, tailored to your mechanical property requirements.

Q: What is the difference between hot-dip and electro-galvanized coils?

A: Hot-dip (PPGI/PPGL) provides thicker, more durable coatings (30-275g/m²), while electro-galvanized has thinner coatings (10-20g/m²) for indoor use.

Q: How to calculate the approximate weight of a coil?

A: Use the formula: Weight (kg) = Thickness (mm) x Width (m) x Coil Length (m) x 7.85 (steel density). We provide detailed technical sheets for exact calculations.