news28 January 2026

Compare galvanised steel sheet, electro-galvanised steel, and cold steel sheet in pre-engineered workshops

Admin Phú Cường

Editor

Compare galvanised steel sheet, electro-galvanised steel, and cold steel sheet in pre-engineered workshops

1. Overview of steel sheet types used in prefabricated workshops

In prefabricated workshops, the three most common material types are: galvanised steel sheet (GI – Galvanized Iron) electro-galvanised steel sheet (EG – Electro Galvanized) Alu-zinc steel sheet (AZ – alu-zinc alloy coated) The difference lies not only in the name, but also in the coating technology, corrosion resistance, surface, and cost.

2. Galvanised steel sheet (GI) – Common solution for workshops

Structure: Base steel is hot-dip galvanised. Technical specifications: Thick coating layer (Z120 – Z275) Good corrosion resistance in normal environments Reasonable cost Common applications: Workshop roofs Exterior walls of industrial zones Warehouses, large-scale production workshops Note: For high humidity or chemical environments, a high Z value should be chosen to ensure lifespan.

TÔN LẠNH AZ

3. Electro-galvanised steel sheet (EG) – Prioritising surface and stability

Structure: Base steel galvanised by electrolysis. Technical specifications: Thin and uniform coating layer Smooth, aesthetic surface, easy to paint Medium corrosion resistance Suitable applications: Interior walls of workshops Areas requiring aesthetics Food processing workshops, clean rooms Note: Not suitable for roofs or harsh outdoor environments without protective paint.

4. Alu-zinc steel sheet (AZ) – Optimised for harsh environments

Structure: Alu-zinc alloy coated (usually AZ50–AZ150). Technical specifications: Good heat reflectivity Superior corrosion resistance compared to GI Long lifespan in coastal, saline environments Typical applications: Large workshop roofs Workshops near the sea Construction projects requiring long-term lifespan Disadvantage: Higher cost than conventional galvanised steel sheet.

5. Quick comparison of steel sheet types

Criteria Galvanised steel sheet (GI) Electro-galvanised steel sheet (EG) Alu-zinc steel sheet (AZ) Corrosion resistance Good Medium Very good Surface Slightly rough Very smooth Bright, heat reflective Main applications Roofs, exterior walls Interior walls Roofs, harsh environments Cost Medium Medium High

6. Which steel sheet type should be chosen for prefabricated workshops?

There is no “best” steel sheet type for all construction projects. The choice should be based on: Usage environment Desired lifespan Investment budget Aesthetic requirements In many projects, the optimal solution is to combine different types of steel sheet for various items.

REFER TO PRODUCTS OF PHU CUONG STEEL SHEET HERE:

Phu Cuong Steel Sheet – Leading Reputable Distributor of Wide Steel Sheet

Phu Cuong Steel Sheet – Accompanying All Construction Projects, with the motto “Quality builds brand”.

Large warehouse, readily available galvanised steel sheet, electro-galvanised steel sheet, Alu-zinc steel sheet width 1000mm – 1250mm – especially from 1500mm and above
On-site fabrication: coil unwinding, cut to size, bending – stamping – forming
Fast delivery by private truck, optimising costs
Commitment to correct thickness, full CO – CQ

Contact:

Address: 2177C–2177D QL1A, Dong Hung Thuan Ward, District 12, HCMC
Phone: 0933 919 899
Email: tonthepphucuong@gmail.com
Website: tonthepphucuong.com

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