Ref Price:
Loading Port:
China Main Port
Payment Terms:
Min Order Qty:
Supply Capability:
  • OKorder Service Pledge
  • Quality Product
  • Order Online Tracking
  • Timely Delivery
  • OKorder Financial Service
  • Credit Rating
  • Credit Services
  • Credit Purchasing

Add to My Favorites

Follow us:

Quick Details

0.5 - 20 mm

Outer Diameter:
20 - 660 mm
Place of Origin:
TIA,Tianjin China(Mainland) China (Mainland)
Secondary Or Not:
Structure Pipe,fluid pipe, oil pipe, gas pipe
Surface Treatment:
Special Pipe:
Thick Wall Pipe
Alloy Or Not:
Key word:
black steel pipe
Thicknss tolerance:
pipe end:
plained end or bevelled end
Packaging Detail:
in bundles,knit bags, plywood box and so on
BS 1387,BS EN10025,BS 4568,BS EN 39,BS EN10217,GB/T 3091-2001,ASTM A106-2006,ASTM A53-2007,BS,GB,ASTM

Packaging & Delivery

Packaging Detail:1) Bundle, 2) In Bulk 3) Bags 4) Clients' Requirements
Delivery Detail:within 10-15 days after receipt deposit or irrevocable LC


black scaffolding steel tube
1. OD: 21.3mm---------219.1mm
Thickness: 1.0mm-------10mm
2. Length: 5.

First: Company introduce


Founded on May 1st,2005,situated in Xizhaizhuang Town Industrial Estate,Tianjin..Thanks to good quality and a great veriety,our products are very popular among new and old customers and are export to such regions and countries as Southeast Asia and Middle East.

Second: Product Information

Black steel pipe/tubes

1. OD: 20mm-----219mm  WT:2.0mm----10mm

2. Tolerance: Thinckness,+/-0.05mm; Length,+/-10mm

3.Material: S235JR

4.Standard: ASTM/BS/GB/DIN

5.Surface: Varnish

6.Moq: 5ton

7. Usage: Greenhouse,Scaffold,highway,bridge

8.Payment:30%T/T advance+70%upon presentig shipping documents.

9. Trade Terms: CFR,CIF,FOB

Third: Size

Stock erw steel pipe

O.D (inch)






















Yes, steel tube couplers can be used in suspended scaffolding systems. Steel tube couplers are commonly used in construction to connect and secure steel tubes or pipes together. They provide a strong and reliable connection, making them suitable for various applications, including suspended scaffolding systems. These couplers ensure stability and safety in the scaffolding structure, allowing workers to perform their tasks at heights with confidence.
The weight capacity of steel tube couplers in scaffolding depends on various factors such as the type of coupler, its design, and the quality of the steel used. However, in general, steel tube couplers can support significant weight loads, typically ranging from a few hundred to several thousand pounds, making them suitable for various construction and industrial applications.
Yes, steel tube couplers are adjustable for different angles in scaffolding with limited headroom. They can be rotated and tightened to accommodate various angles, ensuring flexibility and adaptability in tight spaces.
Steel tube couplers offer a variety of locking mechanisms, each with its own benefits and applications. Some commonly used locking mechanisms include: 1. Wedge Locking System: This system employs a wedge-shaped insert placed between the tubes, tightened with a bolt or nut. The wedging action ensures a secure connection, preventing any tube movement or rotation. 2. Clamp Locking System: Utilizing clamps tightened around the tubes, this system creates a snug fit. The clamps can be adjusted and secured with bolts or nuts, providing a strong and dependable connection. 3. Screw Locking System: This mechanism uses screws threaded through the coupler to secure the tubes. The screws provide a firm grip, preventing slippage or movement. 4. Pin Locking System: This system involves the insertion of pins or bolts through holes in the coupler and tubes to hold them together. Nuts or clips secure the pins, creating a rigid and secure connection. 5. Snap Locking System: This mechanism employs a snap or latch mechanism to quickly and easily lock the tubes together with a simple action. It is ideal for applications requiring frequent assembly and disassembly. 6. Compression Locking System: This system compresses the tubes together using a compression sleeve or ring. The compression creates a tight and secure connection, preventing any tube movement or rotation. Each locking mechanism offers unique advantages and suitability for different applications. Consider factors such as ease of assembly, strength, and reliability when selecting the appropriate locking mechanism for steel tube couplers.
Yes, steel tube couplers are generally resistant to extreme weather conditions. Steel is a highly durable material that can withstand harsh weather conditions such as extreme temperatures, heavy rainfall, and high winds. The strength and resilience of steel make it ideal for use in construction and infrastructure projects, including the use of steel tube couplers. These couplers are specifically designed to connect steel tubes together, providing a strong and reliable connection that can withstand various weather conditions. Additionally, steel tube couplers are often coated or galvanized to enhance their resistance to corrosion, further ensuring their longevity and ability to withstand extreme weather conditions. Overall, steel tube couplers are a reliable and durable choice for applications that require resistance to extreme weather conditions.
Yes, steel tube couplers can be used in confined spaces or narrow scaffolding structures. Steel tube couplers are a type of scaffolding fitting that are used to connect two or more steel tubes together. They are typically used in construction and scaffolding applications to create a secure and stable structure. One of the advantages of using steel tube couplers is their versatility and adaptability. They can be used in various configurations and can be easily adjusted or repositioned to fit different requirements. This makes them suitable for use in confined spaces or narrow scaffolding structures where there may be limited space to work with. Additionally, steel tube couplers are designed to provide a strong and reliable connection between steel tubes. They are made from high-quality steel and are built to withstand heavy loads and harsh conditions. This ensures the safety and stability of the scaffolding structure, even in confined or narrow spaces. However, it is important to note that when working in confined spaces or narrow scaffolding structures, proper safety precautions should always be taken. This includes ensuring that the scaffolding is properly erected, using appropriate fall protection equipment, and following all relevant safety guidelines and regulations.
To properly install and secure steel tube couplers on scaffolding tubes, you need to follow a few steps: 1. Start by selecting the appropriate size and type of coupler for the scaffolding tubes you are working with. Ensure that the coupler has the necessary load capacity and is compatible with the tube diameter. 2. Clean the surface of the scaffolding tubes where the couplers will be installed. Remove any dirt, rust, or debris that may hinder the proper installation or compromise the coupler's grip. 3. Align the coupler with the tubes and slide it onto the desired position. Ensure that it fits snugly and does not wobble or move when installed. 4. Tighten the coupler using a wrench or a scaffold spanner. Apply enough force to secure the coupler firmly onto the tubes, but avoid over-tightening as it may damage the coupler or tube. 5. Check the coupler's orientation and alignment. Make sure it is correctly positioned and aligned perpendicular to the scaffolding tubes to provide optimal stability and support. 6. Inspect the coupler for any signs of damage or wear. If any defects are found, replace the coupler immediately to maintain the structural integrity of the scaffolding. 7. Once all couplers are installed, double-check their tightness and overall stability. Ensure that they are securely fastened and can withstand the intended load capacity without any movement or slippage. 8. Regularly inspect the couplers during scaffold use, especially after any impact or load changes. Look for any signs of loosening or damage and address them promptly to prevent accidents and ensure the safety of workers. Remember, proper installation and secure fastening of steel tube couplers are crucial for the stability and safety of scaffolding structures. Always follow the manufacturer's guidelines and consult with experienced professionals if needed.
Steel tube couplers do not have a direct impact on the overall visibility of a scaffolding structure during use. The visibility is primarily determined by the design and arrangement of the tubes, platforms, and guardrails. However, the presence of steel tube couplers can slightly obstruct the line of sight in certain areas, but this can be mitigated by proper placement and arrangement of the scaffolding components.
Yes, steel tube couplers can be used in both interior and exterior scaffolding applications. Steel tube couplers are versatile and durable fittings that are designed to connect steel tubes securely. They are commonly used in construction projects to create scaffolding structures. Whether it is for interior or exterior applications, steel tube couplers provide a reliable and strong connection between steel tubes, ensuring the stability and safety of the scaffold. They can be used to create various configurations and designs, allowing for flexibility in scaffolding layouts. In interior applications, steel tube couplers are typically used to construct scaffolding in confined spaces or indoor environments. They are commonly used in buildings, warehouses, or other structures where access and maintenance work is required. For exterior applications, steel tube couplers are suitable for scaffolding structures used in outdoor construction sites, building renovations, or maintenance projects. They are designed to withstand harsh weather conditions, such as rain, wind, or temperature variations, without compromising the stability and integrity of the scaffold. It is important to note that when using steel tube couplers, proper installation and adherence to safety regulations are crucial. Regular inspections and maintenance should also be conducted to ensure the scaffolding remains safe and secure. Overall, steel tube couplers are a reliable and versatile choice for both interior and exterior scaffolding applications, providing a strong and stable connection between steel tubes in various construction projects.
There are several common installation methods for steel tube couplers in scaffolding, depending on the specific requirements and design of the scaffolding system. One of the most commonly used methods is the sleeve or compression method. In this method, the steel tube coupler is placed over the two tubes that need to be connected, and then tightened using bolts or nuts. This creates a secure and rigid connection between the tubes, ensuring stability and safety in the scaffolding structure. Another method is the swivel method, which is used when a flexible joint is required in the scaffolding system. In this method, the steel tube coupler is designed with a swivel mechanism that allows the connected tubes to rotate or pivot. This is particularly useful in situations where the scaffolding needs to adjust to uneven surfaces or changes in angles. Additionally, the wedge method is commonly used for quick and easy installation of steel tube couplers. In this method, the coupler is placed between the tubes, and a wedge is inserted to secure the connection. This method is efficient and time-saving, making it ideal for large-scale scaffolding projects. It is worth mentioning that regardless of the installation method used, it is essential to ensure that the steel tube couplers are properly aligned and tightened to the recommended torque specifications. This will guarantee the structural integrity of the scaffolding system and ensure the safety of workers using the scaffolding.

1. Manufacturer Overview

Year Established
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates

a) Certification Name  
Validity Period  

3. Manufacturer Capability

a)Trade Capacity  
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b)Factory Information  
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range

Send your message to us

This is not what you are looking for? Post Buying Request