Black Annealed Steel Pipe

Black Annealed Steel Pipe is a steel pipe that has been black annealed. Annealing is a heat treatment process in which steel is heated to the appropriate temperature and then slowly cooled to room temperature under controlled conditions. Black annealed steel pipe forms a layer of black iron oxide surface during the annealing process, which gives it certain anti-corrosion properties and a black appearance.

Black Annealed Steel Pipe Specifications and Dimensions

The specifications and dimensions of Black annealed steel pipe can vary according to different standards and requirements. The following are some common black annealed steel pipe specifications and size ranges for reference:

1. Side Length: The side length of Black annealed square tube can range from small to large. Common ranges include but are not limited to:

·Small size: side length is 10mm, 12mm, 15mm, 20mm, etc.

·Medium size: side length is 25mm, 30mm, 40mm, 50mm, etc.

·Large size: side length is 60mm, 70mm, 80mm, 100mm, etc.

·Large sizes: side lengths of 150mm, 200mm, 250mm, 300mm, etc.

2. Outer Diameter: The outer diameter of black annealed steel pipe can range from small to large. Common ranges include but are not limited to:

·Small outer diameter: Common small outer diameters include 6mm, 8mm, 10mm, etc.

·Medium and outer diameters: Common middle and outer diameters include 12mm, 15mm, 20mm, etc.

·Large outer diameter: Common large outer diameters include 25mm, 32mm, 40mm, etc.

·Larger outer diameter: Common larger outer diameters include 50mm, 60mm, 80mm, etc.

3. Wall Thickness: There are many choices for the wall thickness of Black annealed square tube. Common ranges include but are not limited to:

·Small wall thickness: 0.5mm, 0.8mm, 1.0mm, etc.

·Medium wall thickness: 1.2mm, 1.5mm, 2.0mm, etc.

·Large wall thickness: 2.5mm, 3.0mm, 4.0mm, etc.

Product features of Black annealed steel pipe

1. Excellent toughness: After black annealing treatment, it has good toughness and processability, and is easy to perform bending, cutting, welding and other processing operations.

2. Simple surface treatment: The surface is black and does not require complicated surface treatment processes, saving production costs and technological processes.

3. High strength: Usually made of low carbon steel or carbon structural steel, it has high strength and compression resistance and can meet certain structural requirements.

4. Economical and practical: Compared with some surface-treated square tubes, Black annealed square tubes have lower production costs and more economical prices. They are suitable for some application scenarios that do not have high requirements for appearance.

Editor: Lucas

Mail: lucas@yangtzesteel.com