Metal Buildings

Metal Buildings for Industrial, Commercial and Agricultural

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Metal Buildings Solution

Metal Buildings design from Havit Steel provides an optimized solution for your project. Our professional team is ready to serve any buildings. We can provide you with the most efficient design and construction plan, which is fast and smooth to complete construction for your steel building projects.

Metal Buildings
steel structure buildings
Steel Structure Building
Industrial

Steel Structure Building

Steel structure building is a new type of building structure system, the entire building body is made of steel. This…

Steel Workshop Building
Steel Workshop Building
Industrial

Steel Workshop Building

Steel workshop Building is a steel structure buildings that house production equipment. They are widely used in industrial production and…

steel warehouse building
Steel Warehouse Building
Industrial

Steel Warehouse Building

The steel structure warehouse building designed by Havit Steel provides customers with ideal storage and cargo management solutions. With the…

prefab metal building
Prefab Metal Building
Industrial

Prefab Metal Building

Prefab metal building is customized steel structures according to customers' architectural and structural requirements. All components are produced in the…

Steel Aircraft Hangar Building
Steel Aircraft Hangar Building
Commercial

Steel Aircraft Hangar Building

Havit Steel manufactures customized Steel Aircraft Hangar Building, which protects and maintains small and large aircraft. Our metal structure building…

Steel Structure Frame Building
Steel Structure Frame Building
Commercial

Steel Structure Frame Building

The Steel Structure Frame Building is composed of steel beams and steel columns. The steel frame can withstand the vertical…

metal structure garage kits
Metal Structure Garage Kits
Commercial

Metal Structure Garage Kits

The garage is an essential part of your property. Now almost every family has a car. The durable Metal Structure…

steel structure livestock buildings
Steel Structure Livestock Buildings
Agricultural

Steel Structure Livestock Buildings

Many farmers choose steel structures to build livestock buildings. Because steel structure livestock buildings with the advantage of low maintenance…

Metal structure warehouse buildings
Metal Structure Warehouse Buildings
Industrial

Metal Structure Warehouse Buildings

Metal Structure Warehouse Buildings can better meet the needs of cargo storage and logistics turnover because steel structure buildings have…

steel structure workshop
Steel Structure Workshop
Industrial

Steel Structure Workshop

The steel structure workshop is a new type of building structure system. The kind of building structure system is a…

Steel Structure Warehouse
Steel Structure Warehouse
Industrial

Steel Structure Warehouse

The main load-bearing component of a steel structure warehouse is a steel frame, including steel columns and roof beams. After…

Steel manufacturing Building
Steel Manufacturing Building
Industrial

Steel Manufacturing Building

The steel building design from Havit Steel is an effective solution for steel manufacturing buildings. Every manufacturing business requires a…

Metal Buildings Specification

The metal buildings uses steel to form a load-bearing structure. Generally, beams, columns, trusses, and other components made of section steel and steel plates constitute a load-bearing structure, which together with roof, wall, and floor, form a building.

Compared with traditional concrete buildings, metal structure buildings use steel plates or section steel instead of reinforced concrete, higher strength, and better seismic resistance. And because the components can be manufactured in factories and installed on-site, the construction period is greatly reduced. Due to the reusability of steel, it can greatly reduce construction waste and become more environmentally friendly. Therefore, it is widely used in industrial buildings and civil buildings all over the world.

Advantage
1. Greatly save construction time. Construction is not affected by the season
2. Increase the use area of buildings, reduce construction waste and environmental pollution
3. Building materials can be reused, stimulating the development of other new building materials industries
4. Good seismic performance, easy to transform, flexible and convenient in use, bringing comfort and so on
5. High strength, lightweight, high safety and wealth of components, and lower building cost

Disadvantages:
1. Heat-resistant and non-fire-resistant, fire-resistant coatings are required
2. It is susceptible to corrosion, and the surface needs to be coated with anti-corrosion coatings to reduce or avoid corrosion and increase durability

Metal Buildings

Metal Building Kits

Steel Building Kits design from Havit Steel with advantage of Fast and Simple Construction, Wide Range Of Uses, Reasonable Cost, lower price than concrete building structure.

Metal Buildings Cladding

Metal Cladding System

Metal cladding system includes wall and roof cladding, skylight sheet, trim and flashing, gutter and downspout, insulation, which are essential components of metal building.

Metal Buildings

Steel Building Specs

Steel Building Specification provide the basic information about the Prefab Steel Building, which include Steel Warehouse, Industrial Workshop, Shed, and Garage Building.

We Are Here To Serve Any Type Of Metal Buildings

Please contact us. There’s a lot we can do for your steel building projects, small or large. Our team will provide you with the best quality construction solution

Comparison of the differences between Q345B and Q355B Steel.

As the foundation of steel structure buildings and machinery manufacturing industries, steel’s performance directly affects project quality and safety. With the advancement of science and technology and changes in industrial needs, steel standards are constantly being updated. The introduction of the GB/T 1591-2018 standard, primarily the upgrade of Q345B steel to Q355B steel, also marks the integration of Chinese steel standards with international standards.

Q355B steel

Q355B steel: a product of international integration

The upgrade of Q345B steel is essential to update the GB/T 1591-2018 standard. Introducing the new grade Q355B steel implies its similarity to S355JR of the European standard EN 10025 in its name.

Optimization of chemical composition

This integration is reflected not only in the grade but also in the chemical composition and mechanical properties. For example, the upper limit of some carbon content has been raised from ≤0.20 to 0.24, which is the same as the JR grade of the European standard, and harmful elements such as Cu are also kept consistent with the European standard as much as possible.

Subtle adjustment of mechanical properties

Regarding mechanical properties, the yield strength of Q355B steel has been raised from ≥345 MPa of Q345B to ≥355 MPa, but the original lower yield strength judgment has been changed to the upper yield strength consistent with the European standard. This change has a relatively small impact on production and use and can even be regarded as not a significant change in the selection of load design materials.

The primary purpose of the change in yield value is to remain consistent with European standards, increase material circulation, and reduce the cost of design conversion.

Q345B and Q355B are two different steels, and their main differences are as follows:

  1. Different properties: Q345 is a low-alloy steel, while Q355 is a low-alloy, high-strength structural steel widely used in bridges, vehicles, ships, buildings, pressure vessels, special equipment, and other fields.
  2. Different yield strength of steel: “Q” stands for yield strength. The yield strength of Q345 is 345MPa, while the yield strength of Q355 is 355MPa. As the thickness of the material increases, the yield value of Q355 decreases.

The main difference between Q345 and Q355 is their properties and yield strength. Q355 has higher strength and a more comprehensive range of applications, while Q345 is a more common low-alloy steel. When choosing which steel to use, it is necessary to consider specific needs and the use environment.

The upgrade of Q345B to Q355B steel is essential to aligning China’s steel standards with international standards. This change is reflected in optimizing chemical composition and mechanical properties and the correspondence between grades and international standards.

The benefits brought are mainly in two aspects:

Use: In recent years, China and Europe have cooperated more frequently in many fields, and many engineering projects have chosen to purchase steel in China. However, due to different standard systems, this often leads to problems.

    For example, when purchasing S355JR steel, it is usually necessary to re-order with the steel mill. However, with the implementation of the new national standard, S355JR can be directly replaced with Q355B steel in terms of performance, and the docking of the two can achieve almost zero difference.

    This means that as long as the design party slightly modifies the drawing markings, it can be docked smoothly.

    Production: Although the demand for European standard products has increased yearly, due to the differences in standard systems and component performance, production organization has become very inconvenient, resulting in rising production costs.

      However, implementing the new national standard makes S355JR and Q355B almost interchangeable. For steel mills, this is just a matter of modifying the warranty.

      In the past, these two grades were not interchangeable. If S355 is single, it can almost only enter the market as an available product at a lower price.

      In addition, the Q345 series also differs from the European standard in other aspects, resulting in the need to re-produce when orders for the European standard come in. However, Class B is interoperable in the new national standard, and several other grades are almost the same, such as S355J0, J2, etc.

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