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Hot-dip galvanizing of metal structures
Best service in Russia
from 21 000 rubles per ton with VAT
Hot-dip galvanizing of supports
Better performance
thanks to excellent quality products
Manufacture of metal structures
Hot-dip galvanizing of metal
GOST 9.307-89. Coating thickness from 40 to 200 µm
Dimensions bath 13,5x1,4x3,2 meters
Galvanized metal
Strip, circle, pipe and corner
The presence and under the order.
Leave your application
right now
8 (343) 382-53-46
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HOT-DIP GALVANIZING OF METAL STRUCTURES

Every serious area that uses steel products (construction, production etc.) is interested in a rust prevention of metal structures. Hot-dip galvanizing is recognized as one of the best ways of corrosion protection of metal structures.

Today the surface treatment technology of metal structures and elements is the main activity area of “EZI” production company. In order to increase the lifetime of different metal structures the special anti-corrosion coating is applied. The procedure of application of such coatings allows to save great resources in metal use during a long lifetime.

Price list for hot dip galvanizing of metal GOST 9.307-89

Title Price per ton
Hot-dip galvanizing of metal structures From 21 000 rubles
Hot-dip galvanizing of pipes From 24 000 rubles
Hot-dip galvanizing of supports From 21 000 rubles
Hot-dip galvanizing strip From 28 000 rubles
Hot-dip galvanizing of piles From 24 000 rubles
Hot-dip galvanizing of brackets From 28 000 rubles
Hot-dip galvanizing of reinforcement From 28 000 rubles
Hot-dip galvanizing mesh From 45 000 rubles
Hot-dip galvanizing finned tubes From 28 000 rubles
Hot-dip galvanizing of trays From 40 000 rubles

Advantages:

  1. Simplicity. It becomes easily available with us. Galvanizing of metal structures from 20 tons takes 3-5 days.
  2. Low cost. Relative cost of hot-dip galvanizing (from 22 000 rubles per ton) and the term of structures useful life let say that technology gives 100% protection for 20 years minimum.
  3. No fear of mechanical damages. There is no any surface rupture even in case of heavy bends or chips.
  4. High quality indicators. Increased electrical and thermal conductivity due to the alloy on the product surface.
  5. Lifetime. This surface is resistant even for the most aggressive conditions from -50 till +60, absence of hydrogen embrittlement.

Due to the vast experience of hot-dip galvanizing application for different types of products and structures as well as to the knowledge of every process technology we brought the service of galvanizing to perfection – the product is highly demanded among the clients and helps our partners to develop.

High level of galvanized metal structures realisation is the result of hot-dip galvanizing technology compliance, acceptable terms of order execution and optimal cost.

Our workshop and technology application

Production facilities, continuous supervision of our company’s professional staff and well organized logistic allows to spend less time for order execution as well as provide high quality product production.

Hot-dip galvanizing is applied for metal structures made of:

  • low carbon steel;
  • ordinary steel;
  • construction steel.

Galvanizing process is applicable for various market areas:

  1. Energy: power line supports, elements of supporting and supporting structures of electric power substations, towers.
  2. Road construction: railings, fences, racks, constructions of bridges and pipelines, barriers and guides.
  3. Communication: communication masts, transmitters and antennas, ground loop and strip.
  4. Construction: large-size metal structures, panels, rails, beams, channel bars, corners, trusses, grids, frames, advertising structures elements.
  5. Industry: suspensions, electrical products, air ducts.

Hot dip galvanizing shop Hot dip galvanizing bath

Production stages

We provide a full warranty for the coating and protection of your products of any configuration and even if it doesn’t correspond to regulatory documentation GOST we can finalize it by ourselves.

Hot dip galvanizing technology

Hot-dip galvanizing comprises the following stages:

  • Incoming control defining the method of metal structure galvanizing;
  • Preparation of external surface of elements for hot-dip galvanizing;
  • Hot-dip galvanizing;
  • Revision of various defects if there are any;
  • Property analysis of finished coating in accordance with regulatory documentation GOST 9.307-89;

“EZI” production company is opened for multilateral partnership and undertakes responsibility for galvanizing of metal and metal products for companies from Ural Federal District (Ekaterinburg, Polyevskoy, Chelyabinsk, Tumen) and other regions of our country.

Your company is interested in hot-dip galvanizing of metal systems? We offer you to estimate the quality of the services and products of our company!

Why we are
No prepayment
No prepayment
The customer is waiting for photos of finished structures and does not pay the remaining amount? Help!
Deferment of payment
Deferment of payment
You work on tenders and there is no opportunity to take orders with a delay? Decide!
Cargo pickup
Cargo pickup
We have our own vehicles - trucks and manipulators, ready to go to you at any time.
Quality assurance
Quality assurance
We control every step of galvanizing. Non-galvanizing? Surges? Forget it! Work with professionals!
We will help to finish
We will help to finish
Welded construction and no one takes zinc? We will solve all the problems and digitize everything on our own!
We will help to make
We will help to make
Do not know what is GOST 9.307-89? No time to understand the requirements? We will develop all drawings and we will make your products!
Iron terms and storage
Iron terms and storage
We do not lie to our customers and never disappear! Said 3 days, in 3 days everything will be ready. Need storage? Our warehouse is your warehouse!
Cargo and product insurance
Cargo and product insurance
We do not like "surprises", and the vagaries of the weather we are not afraid! For us there are no dead-end task, while the remaining cases have insurance.
Technological process
1/7 Alkaline degreasing
1/7 Alkaline degreasing

First step in preparing the surface before hot dip galvanizing is alkaline degreasing. This procedure is carried out in order to remove oil and other contaminants of organic origin.

Most effective methods of degreasing before hot-dip galvanizing products are:

  • cleaning with alkaline solution;
  • acid solution cleaning method.

Reagent should be Chosen based on the nature of the contamination. Among alkaline cleaners there are several varieties. But for products on which hot-dip galvanizing is used, it is recommended to use a highly alkaline cleaner. The recommended temperature for the cleaning procedure is from 60° to 80°C.

2/7 Flushing
2/7 Flushing

Washing is an important step in preparing a steel product for zinc coating. It follows the degreasing process. This procedure is necessary in order to remove the remaining fat, reagents. Foam residues can be on the product or in degreasing baths, if there were foaming agents in the reagents.

Different capacities are used For this step. Their choice depends on the size of the metal structure. Carrying out washing should be very careful. Residues of chemical reagents used during degreasing should be completely removed from the surface of the coating during washing. This is also important to ensure that the next stage of etching is also carried out carefully.

3/7 Etching
3/7 Etching

According to the requirements of GOST, the metal structure on which the zinc layer is applied should not have oxidizing areas and residues of the previously used coating. To meet these requirements, the surface is etched.

During this procedure, scale and rust are removed from the surface. To do this, the profile is dipped in a solution of hydrochloric acid. It helps to dissolve iron chlorides and provide the product with a smooth, smooth and shiny surface. The concentration of acid in this case should be 120-210 g/l. the air Temperature in the room should be 20°-25°C. To acid after dissolving rust does not destroy the product itself, additional substances are added to the solution.

4/7  Flushing
4/7 Flushing

Re-rinsing is no less important than the first. This step is mandatory. It is produced after the etching stage. As after degreasing, the metal product must be thoroughly washed. After all, during etching it formed the remains of used chemicals: salt and hydrochloric acid solution.

Additional flushing allows to prepare the profile for the next stage – fluxing, so it should be done very carefully. This procedure is performed using special washing baths. They are filled with water, after which the products are immersed in them. To save water, it is very convenient to consistently have several washing baths.

5/7 Fluxing
5/7 Fluxing

After the washing step, iron oxides are formed on the surface of the product again. They are removed during the fluxing procedure. This process is necessary for the final cleaning of the profile and obtaining a passive film. This film prevents subsequent oxidation of the surface and provides excellent wetting of the product with molten zinc.

Layer of flux in the solution is applied To the metal structure to be processed. It consists of zinc and ammonium chlorides. To prepare the solution, these elements are mixed with water. The composition of the solution should be constantly monitored, and the bath cleaned regularly. The temperature at which the procedure is performed must reach 60°C.

6/7 Hot galvanized
6/7 Hot galvanized

Placing a metal structure in a special container with molten zinc is called hot dip galvanizing. This procedure can be performed using different equipment. The ideal result in the form of a reliable coating depends on several factors:

  • correct zinc coating temperature. It should reach 420-450°C. This is the average, but it should be selected taking into account different characteristics, one of which is the size of the structure;
  • quality of material used;
  • product immersion and lifting speed;
  • cooling mode.

At the stage of galvanizing the structure is immersed in a bath for 3-10 minutes. In this case, a layer of slag is formed on the product, which must be removed before lifting.

7/7 Drying and quality control
7/7 Drying and quality control

Last step is drying the finished product and checking the quality of the work done. These processes are carried out after the profile has been removed from the hot dip galvanizing bath. Cooling can occur naturally or is forced.

Drying of galvanized products can be done in cooling baths. Above each of these baths is a powerful ventilation system that allows to neutralize the vapors of hydrochloric acid.

Metal structure can be cooled outdoors. After drying, the profile is transferred to the place of storage, connecting to the site of the OTC. The finished products are checked for compliance with the requirements of the international standard.

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Clients trust us
Not the first time we order galvanizing of pipes. The work was completed on time. Thanks to your service to forget about such troubles as corrosion. Pipes are without a single defect. Thank you for the quality work!
Petr, A Group
We were satisfied with the results of coating the corners with zinc. After operation, the appearance of the parts has not changed, which indicates the quality of the work performed. Thanks for productive cooperation, we will address still!
Oleg, Steel company
I liked that before ordering, the Manager consulted about all the upcoming manipulations and answered all our questions. Galvanizing is made qualitatively. We will turn to your service again!
Sergey, TSK Topaz
Ordered a galvanized fence poles. Pleasantly surprised by the result. On appearance of columns it is noticeable that they were covered taking into account all rules. Now perfectly serve, despite the fact that are outdoors!
Vasily, Armada-Service
All works are performed at the highest level! Galvanized supports for the Foundation are protected from rust and now will last for many years. Thank you for your attention to our order and its fast execution.
Nikolay, Metalwork
We appeal to you not for the first time, because I like the value for money. Covered by zinc I-beam for mounting the load-bearing structures. Thanks to you, we can be confident in the reliability of the built premises!
Roman, Metal construction
Work with professionals

We have brought the technology of hot-dip galvanizing to perfection and are rightly proud of it. They deserved an impeccable reputation, acquired a large base of loyal customers who are satisfied that they chose us as a reliable performer.

Leave a request for hot-dip galvanizing, and we will answer all your questions, discuss the terms of cooperation and be sure to find a mutually beneficial option. Trust our professionalism!

Contact us
8 (343) 382-53-46
info@oooecm.ru
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ЭЦМ
Russia,
Ekaterinburg,
ul. Melnikova, house 38, pom. 105
+7 (343) 382-53-46
ЭЦМ
Russia
Ekaterinburg
ul. Melnikova, house 38, pom. 105
+7 (343) 382-53-46
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