What is Galvanized? What are Galvanized Materials?

Wanzhi Group is a galvanizing factory from China, we provide different thicknesses of zinc processing services, galvanizing can protect metal materials from air, moisture, oxygen, acid, and alkali corrosion, thus extending the service life of metal materials, galvanized metal materials life expectancy of 7–50 years. As a professional galvanizing solution specialist, Wanzhi has customized galvanizing solutions for various thicknesses, sizes, and applications for construction, industrial, transportation, and agricultural customers.

DX52D Galvanized Steel Coil
Coil
G60 Galvanized Steel Sheet
Sheet

What is Galvanizing?

Galvanizing is a surface treatment technique where a layer of zinc is chemically or electrochemically applied to the surface of a metal, or an alloy of steel, to protect it from environmental corrosion and rust. Since zinc is more chemically active, when it encounters corrosive substances the zinc layer will preferentially undergo a chemical reaction, isolating air and moisture to protect the metal from corrosion.

What Galvanizing Processes Are Available?

There are three common types of galvanizing processes: hot dip galvanizing, electro galvanizing, and zinc spraying. The surface effect, zinc layer thickness, and corrosion resistance of the products produced by the different processes are different.

Galvanized Line
Galvanized Line

Hot-dip galvanizing

  • Process: The metal material is immersed in a high-temperature zinc bath, where the metal reacts with the zinc bath to produce a uniform layer of zinc.
  • Characteristics: Thick zinc layer, zinc crystal pattern on the surface.
  • Advantages: low cost, good corrosion resistance, suitable for large-scale production.

Zinc Electroplating

  • Process: Deposition of a zinc layer on the metal surface by electrolytic reaction.
  • Characteristics: Thin zinc layer, smooth surface, no zinc flowers.
  • Advantage: aesthetically pleasing, suitable for small precision workpieces.

Zinc Spraying

  • Process: Zinc is sprayed onto the surface of the metal material using a spray gun.
  • Characteristics: Highly efficient and flexible.
  • Advantages: low cost, easy to repair, can handle large and complex structures.

What is Galvanized Steel?

Galvanized steel is a coated steel made from hot-rolled or cold-rolled steel by hot-dip galvanizing or electro-galvanizing, also known as GI steel. Galvanized steel has the toughness, strength, hardness, and plasticity of carbon steel and the corrosion resistance of zinc, and is steel with excellent corrosion resistance, mechanical properties, and decorative properties. As a raw material, it can be processed by slitting, bending, punching, forming, and painting to make roofing panels, wall panels, guttering, ventilation ducts, steel structures, etc.

Electro Galvanized Steel

Electro Galvanized Steel

Wanzhi Group is a leading supplier of galvanized steel and colour-coated steel. We provide high-quality galvanized steel products to customers ...
Hot Dip Galvanized Steel Coil

Hot Dip Galvanized Steel

Hot dip galvanized steel is very cost-effective GI steel with low processing cost and thicker zinc coating, good rust resistance ...

What are the Galvanized Steel Products?

Wanzhi Group has galvanized steel production lines, as well as various steel sheet and structural steel production lines for both raw materials and finished products. Our services include galvanizing, further processing, customization, etc.

Galvanized Products
Galvanized Steel Products

Why Use Galvanized Steel?

Galvanized steel has good anti-corrosion, mechanical and decorative properties, long-term stability, and durability in humid and corrosive environments. Therefore, galvanized steel has been widely used as an indispensable material in construction, transportation, electric power, agriculture, home appliances, automotive, and other industries.

Characteristics

  • Corrosion Resistant: It can effectively prevent the steel from oxidizing and rusting.
  • Durable: The zinc layer provides the steel with abrasion and scratch resistance.
  • High hardness: It has the high hardness and strength of carbon steel.
  • Toughness: Can withstand a wide range of external forces.
  • Plasticity: it can be bent, punched, molded, and other deep processing.
  • Long service life: The service life of GI steel varies from 7 to 50 years with different zinc layer thicknesses.

Usage

  • Roofing, walling, fencing, etc. for residential/commercial/technical/agricultural buildings.
  • For automobile carriages, car frames, car doors, etc.
  • Used for making electric power towers, traffic signposts, solar energy support, etc.
  • Used for building greenhouses, agricultural equipment manufacturing, chicken coops, etc.
  • Used in the manufacture of piping systems, ventilation ducts, drainage ditches, etc.

Advantages

  • Provide stable support and anti-corrosion protection.
  • Improve durability and safety.
  • Enhance aesthetics
  • Reduces costs

Where to Buy Galvanized Steel?

If you are planning to purchase galvanized steel or galvanized steel products in bulk, then buying from a factory supplier is the most economical option. Factory can customize material grade, specification, zinc coating thickness, surface structure, surface effect, text and logo, etc. Wanzhi galvanized steel factory can offer wholesale prices for bulk buyers. Meanwhile, we have many ways to visit our factory and office, as well as factory site visits, welcome to contact us!

Clients in Wanzhi Group Factory
Clients in Factory

Import Notes for Galvanized Steel

  • Delivery time
  • Supply Ability
  • Transportation time
  • Supplier reputation
  • Product specification

Galvanized Steel Project Case

Purchasing galvanized steel coil and galvanized steel sheet as raw material from our factory can be processed into various galvanized panels, and galvanized structural parts, and purchasing galvanized panels and galvanized structural parts can be directly used in the project to reduce the processing cost. So far, Wanzhi has served more than 100 countries for processing plants, construction projects, and traders.

Case

We have supplied galvanized steel coils, sheets, and strips for roofing and structural steel fabricators, corrugated color panels as well as guttering, soffits, and ridge tiles for commercial buildings, and galvalume coils and color-coated coils for greenhouses and long-span factories, and much more.

2 Containers Galvanized Steel Strip to Singapore - Label

2 Containers Galvanized Steel Strip to Singapore

In Dec 2023, Singapore customer purchased one container of galvanized steel strip from Wanzhi Group, after receiving the goods, they ...
PPGI Roofing in Libya

Project of PPGI Roofing en Libya

Good news! Our Libyan customer's project has already started, and we are happy to receive feedback from the customer! Last ...

Customer Testimonials

So far, our services and products have received good feedback from customers all over the world.

Feedback

Galvanized Steel Products for Sale in Wanzhi

Wanzhi sells all sizes and types of galvanized steel products, including, steel coils, steel plates, steel strips, roofing sheets, wall panels, floor slabs, sandwich panels, office panels, steel profiles, steel wires, nets, steel structures, and so on. We produce 600,000 tons of products annually, with the fastest delivery time of 5 days.

Certificates Wanzhi

Galvanized Specification

MaterialSGCC,S350GD+Z,S550GD+Z,DX51D,DX52D,DX53D, etc
Thickness0.12mm-6mm
WidthThe conventional width below 0.5mm is 1000mm, 1200mm, and above is 1000, 1250mm
coil weight8-10 tons /customized
Tolerance"+/-0.02 mm
Substrate TypeHot rolled coil, Cold rolled coil
Surface structureZero spangles, Small spangles, Regular spangles, Big spangles
Zinc layer thickness30g/㎡-275g/㎡ (Z275/G90)
StandardAISI, ASTM, BS, GB, JIS
Implementation standardsGB/T2518 GB/T25052, EN10346, JIS G3302, ASTMA653
CertificatesSGS, ISO 9001,CE

Galvanized Material Price

Galvanized steel price is 500-800USD per ton, choose a different material grade (DX51D, DX52D, SGCC, SGCD, G60.G90), thickness (0.12-6MM), zinc layer (z30-z350), surface effect (zero spangles, large spangle, regular spangle, small spangle…). , small spangle.), process (hot-dip galvanized, electro galvanized), structure (GI coil, sheet, corrugated, sandwich), price will be different. Contact us via WhatsApp or e-mail for an accurate quote!

Service

Pre-sale: free consultation, customized proposal, samples, free quotation

After-sales: quality control, 24 hours online to solve after-sales problems.

How to Increase the Life of Galvanized Steel?

The thickness of the zinc layer on galvanized steel determines the service life. To provide corrosion protection for galvanized steel, in addition to increasing the thickness of the zinc layer, it is possible to achieve this by applying a surface treatment and regular maintenance.

Aluminum Galvanized Steel Coil
GL Steel Coil
PPGI Coil White
PPGI White

Surface Finish

  • Painting: The surface of the galvanized steel is coated with a roller coating, which can be PE/SMP/HDP/PVDF. Painted galvanized steel (PPGI) not only enhances corrosion resistance but also improves weathering and decorative properties.
  • Chromatin: A layer of chromium is applied to the surface of galvanized steel to enhance corrosion resistance and aesthetics.
  • Passivation: An oxidizing process that forms a protective film on the surface of the metal.
  • Fingerprint Resistant: A fingerprint-resistant film is applied to the steel surface.
  • Phosphatization: Phosphatization of the steel surface to form a chemical conversion film, which enhances the wear and corrosion resistance of the steel.

Maintenance

  • Regular cleaning.
  • Regularly inspect the galvanized steel surface for scratches and repairs.
  • Keep the storage environment dry and ventilated.

If you are interested in galvanizing, or galvanized products, please contact us and we will be happy to answer your questions.

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