High Corrosion Resistance Hot Dip Galvanized Steel Coil For Outdoor Structure

Product Description

Hot Dipped Galvanized Steel Coil (GI) is produced by passing cold-rolled strip through a molten zinc bath at around 460°C, forming a metallurgically bonded zinc-iron alloy layer. The zinc coating acts as a sacrificial barrier, protecting the substrate from rust even when the surface is scratched. GI coil is the standard substrate for PPGI and is also used directly in roofing, ductwork, fencing and electrical enclosures.

Key Specifications

Applications

· Roofing sheets, wall cladding and corrugated steel sheets

· HVAC ductwork, air pipes and ventilation components

· Cable trays, electrical conduit and switchgear cabinets

· Fencing, guardrails, steel furniture and shelving

· Substrate for PPGI, slitting, shearing and deep drawing products

Advantages & Features

1. Excellent corrosion resistance – Sacrificial zinc protection, service life up to 20–50 years in rural / urban environments.

2. Cost-effective – Lower upfront cost than stainless steel, with long maintenance-free life.

3. Good formability and weldability – Suitable for bending, roll forming, stamping and welding without cracking.

4. Full traceability – Mill Test Certificate (EN 10204 3.1) supplied for every batch.

5. Flexible customization – Regular / zero spangle, oiled / dry finish, slitting and cut-to-length service.

Grade Comparison

Usage & Notes

· Store in a dry, ventilated warehouse; avoid direct sunlight and rain exposure.

· Wear clean gloves when handling to prevent fingerprint and oil marks on the surface.

· When welding, remove zinc coating within 20 mm of the weld line and ventilate properly.

· For outdoor use, painting or PPGI lamination is recommended for extended service life.

Shipping, Payment & Packaging

Delivery time: 7–15 working days after deposit confirmation.

Payment terms: T/T (30% deposit, 70% against B/L copy) or L/C at sight.

Packaging: Export standard seaworthy packing – waterproof paper, steel edge protectors, outer ring and inner ring protection, steel straps.

Loading capacity: 20' GP approx. 25 tons; 40' HQ approx. 26 tons (subject to thickness and width).

After-sales Service

We provide Mill Test Certificate (EN 10204 3.1) before shipment. If any quality issue is confirmed by SGS / BV, replacement or compensation will be negotiated. Slitting, cut-to-length and OEM orders are welcome.

ABOUT US

Welcome to Shandong Shouya Steel Co., Ltd., which was established in 2018. We have more than 10 years of rich experience in the steel field. As a professional steel solution provider, our products include steel plates, steel coils, steel pipes, steel bars, steel sections, etc. Our services cover the entire process of steel selection, procurement, processing, logistics, etc., to ensure that customers get the best quality steel products. Our team is composed of experienced professionals who are proficient in all aspects of the steel industry and can accurately analyze customer needs and tailor the most suitable solutions. Our processing technology is advanced, providing a variety of processing services such as carbon steel, stainless steel, galvanizing, color coating, etc., which can meet various complex needs. And our products are strictly quality tested to ensure that every product meets the standards.Widely used in construction, transportation, shipbuilding, automobile manufacturing and other fields.