en
fr
es
Black Steel Tube Factory
Black steel pipe is mainly composed of carbon steel, which has exclusively more than 0.04% to 2.1% carbon. Depending on manufacturing and fabrication, it can be known as welded pipe or seamless pipe.
AJ Building is a respected manufacturer of steel pipe in China, offering customized steel products to meet your specifications and meet international standards. We also manufacture other products related to building materials, such as scaffolding and formwork, and would be happy to assist you if you have a purchasing request.
Key Features
-
High Load-Bearing Capacity
Engineered to safely support substantial weight, crucial for material and personnel support on elevated platforms. -
Excellent Weldability
Allows for secure and durable connections when custom fabrication is required.
-
Straightness & Uniformity
Precision manufacturing ensures consistent dimensions and straightness, facilitating quick and secure assembly.
Product Specifications
- Material: Made from high-grade Q235, Q345, or equivalent carbon steel, offering excellent weldability and structural integrity.
- Outer Diameter: OD 48.3mm (1.9 inches)；OD 60.3mm (2.375 inches)
- Wall Thickness: 3.2mm, 3.8mm, 4.0mm, 3.6mm, 4.0mm, 4.4mm
- Other Sizes (Available upon request): We can also supply tubes with outer diameters ranging from 21.3mm to 114.3mm, and wall thicknesses from 2.0mm to 5.0mm to accommodate highly specialized projects.
- Length: Most lengths are standard from 0.5 meters to 6.0 meters. We can also provide custom lengths to minimize waste and maximize your setup.
- Weight: Depends on OD and wall thickness (for example, a 6.0-meter length of 48.3mm OD with a 3.2mm wall thickness would be about 28.3 kg).
Compliance: They are manufactured to comply with international scaffold specifications, including:
- EN39 (European Standard)
- BS1139 (British Standard)
- AS/NZS 1576 (Australian/New Zealand Standard)
- JIS G3444 (Japanese Industrial Standard)
- ASTM A53 (American Standard)
Ideal Applications
Black steel tubes are incredibly versatile and are a fundamental component in a wide array of construction and industrial applications where strong, temporary structures are required. Their primary use is in creating safe and stable scaffolding systems for various purposes:
Building Construction & Renovation: The core of all access and support scaffolding for new builds and upgrades.
Maintenance & Repairs: Creating safe access for work on bridges, industrial plants, and large structures.
Formwork Support & Shoring: Providing critical temporary support for concrete pouring and structural elements.
Event Stages & Grandstands: Forming the robust framework for temporary entertainment and viewing structures.
