Scaffolding Steel Pipe

Scaffold steel pipe is a building material used for scaffolding. Scaffolding is a temporary structure used to provide access to high-rise or remote construction areas. The main function of scaffolding is to provide a movable platform to carry out tasks to transfer materials and supplies at different heights. Without this structure, it would be impossible to carry out construction, repair and maintenance work on the building. It is a building support made of steel pipes, widely used in construction sites, large-scale events, indoor and outdoor exhibitions and other fields. The basic components of scaffolding steel pipes include: vertical rods, connecting rods, horizontal rods, slashes, bases, etc.

The steel pipe scaffolding is made of hot-rolled galvanized steel. Once formed into a tube, it is held together by steel fittings and couplers. It is easy to remove and install, making it very popular for all types of construction projects.

Scaffolding is often composed of a variety of materials, including aluminum, wood, and bamboo.There are several advantages of using it in the application:
1. Strong and durable
Steel is one of the strongest and most durable metals. Compared with other materials, steel has excellent weather resistance, fire resistance, wear resistance and corrosion resistance. That means it can withstand harsh conditions like heavy rainfall, scorching sun and heavy foot traffic.
Due to its hardness, it has a longer service life than other scaffolding materials. Scaffolding steel pipe is capable of many tasks and can be used for many years without compromising quality or functionality. As such, it is one of the safest and most sustainable platform solutions, which is why it is so popular in construction projects.
2. Increase load capacity
Scaffolding steel pipe is a highly robust material that has a greater load-bearing capacity than other materials due to its increased strength. Scaffolding steel pipe can easily support larger loads. For example, it can support many people and their equipment and building materials without shaking or swaying.
3. Easy to install and remove
Despite the strength and hardness of steel pipe material, it is lighter than expected. Therefore, they are easier to assemble and disassemble on the job site. Scaffolding steel pipe is also easier to get to and from a project site because it can be shipped in bulk and is easy to load and unload on a truck.
This gives it a significant advantage over other materials. Scaffolding must be erected quickly so that construction can begin as quickly as possible. Scaffolding steel pipe can create temporary structures faster, thus improving work efficiency.
4. Can be used for larger jobs
Another notable feature of scaffolding steel pipe is its structural stability. This allows producers to supply a variety of styles and sizes of steel pipe, which can then be assembled in a variety of ways.
Scaffolding steel pipe can be built to enormous heights in both single and double scaffolding styles. Other materials, such as wood and bamboo scaffolding, are often more difficult to achieve. Therefore, steel pipe scaffolding can be used to build platforms without height restrictions, which is very suitable for construction operations of high-rise buildings.
5. Has a traditional form and geometry
Scaffolding steel pipe materials follow the regular shape and geometry of steel pipe products. This greatly simplifies the ordering, fabrication and assembly of Scaffolding steel pipe supplies. Also, because they use traditional geometry parts, it's easy to get the proper 90-degree angle (which is critical for building a solid platform).
6. Provide a solid, solid foundation
Steel pipe is one of the most stable and strongest materials used in construction projects, including scaffolding. Scaffolding steel pipe provides a safe and stable platform for any construction project.
It is not prone to problems such as corrosion, rust and cracks that affect its service life. As a result, there is less risk of it collapsing, being improperly built or coming loose, reducing accidents involving employees and passers-by.
7. Environmental protection
Probably one of the least known benefits of using steel products is its environmentally friendly approach. It is extremely sustainable compared to other metal and wooden materials. For example, wooden scaffolding has a significant impact on the environment as it contributes to deforestation issues.
On the other hand, when the steel industry produces scaffolding products, it can recycle outdated scaffolding materials, save non-renewable resources, and reduce the use of primary energy. Scaffolding steel pipe is an environmentally friendly material, so its service life is also longer.

Application of scaffold steel pipe:
1. In construction engineering: it can be used to build external scaffolding of buildings and provide construction workers with a safe and stable working platform. Scaffolding steel pipes can also be used to build internal support structures, supporting formwork and scaffolding during concrete pouring. Its structural stability and load-bearing capacity make it safer and more comfortable for construction workers to work at heights.
2. In bridge engineering: Bridge construction requires a large number of supporting structures to support the pouring of piers and girders. Scaffold steel pipes are one of the commonly used materials. It has high strength, good corrosion resistance, and can withstand large loads to ensure the safety and stability of bridge engineering.
3. In the field of shipbuilding and repairing: a large number of supporting structures are required to support the hull in the process of shipbuilding and repairing, and scaffolding steel pipes have become an indispensable material. Its corrosion resistance enables ships to be used in harsh marine environments, while its adjustable nature makes shipbuilding and repair processes more flexible and efficient.
4. In petrochemical and other industrial fields: During the construction and maintenance of petrochemical plants, a large number of supporting structures are required to support equipment and piping systems. The high strength, corrosion resistance, and adjustability of scaffold steel pipe make it an ideal choice.

The high strength, corrosion resistance and adjustable performance of scaffolding make it an ideal choice for temporary engineering supports, providing reliable support for construction and maintenance work in all walks of life.

The national standards for scaffolding steel pipes usually cover their material, size, quality requirements, testing methods and other aspects. The following are some common national standards:

Chinese standard:
GB/T 3091-2015 "Welded steel pipe for low-pressure fluid transportation", GB/T 13793-2016 "Straight seam electric welded steel pipe", etc.

British National Standards:
BS 1139-1.2: 1990 "Metal Tube Scaffolding. Specification", etc.

American National Standard:
ASTM A53 / A53M-20 "Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless", etc.

Japanese national standard:
JIS G3444: 1994 "General Structure of Steel Pipes for Buildings" , etc.

These national standards are designed to ensure the quality and safety of scaffolding steel pipes, and the corresponding standards should be followed to ensure compliance when purchasing or using.

The size standard for scaffolding steel pipe is jointly formulated by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China and the Standardization Administration of the People's Republic of China. The standard stipulates the basic parameters such as the outer diameter, wall thickness and length of the steel pipe for scaffolding, as well as the requirements for the material, welding quality, surface treatment and marking of the steel pipe. The formulation of the standard aims to regulate the production, sales and use of scaffolding steel pipes and ensure the safety and quality of construction projects
1. The outer diameter and wall thickness of the steel pipe
The outer diameter of scaffolding steel pipes is generally 48mm, 51mm and 57m in three specifications. The wall thickness of the 48mm steel pipe is 3.5mm, the wall thickness of the 51mm steel pipe is 38mm, and the wall thickness of the 57mm steel pipe is 40mm. The outer diameter and wall thickness of the steel pipe are important parameters for the steel pipe to withstand load and flexural strength, and must be selected and used in accordance with the standards.
2. The length of the steel pipe
The length of scaffolding steel pipes is generally 1.0m, 1.5m, 2.0m, 2.5m, 3.0m and other specifications. The length of the steel pipe is selected according to the construction height and structural design of the scaffold and must be calculated and arranged in strict accordance with the standards.
3. Steel pipe material and welding quality
The material of steel pipes for scaffolding is generally Q235B steel, and its chemical composition, mechanical properties and physical properties must meet the requirements of national standards. The welding quality of the steel pipe is one of the main factors affecting the safety performance of the scaffold. It must be carried out by arc welding and gas shielded welding, and the welded joints must meet the standard requirements.
4. Surface treatment and marking of steel pipes
The surface treatment of scaffolding steel pipes generally adopts painting, galvanizing, hot-dip galvanizing and other methods to prevent rust and corrosion of steel pipes. The steel pipe mark must be clear and clear, including the manufacturer, steel pipe specification, production date, batch number and other information.

The allowable deviation of the outer diameter of scaffold steel pipe is ±0.5mm, and the deviation of wall thickness is ±0.36mm