Choosing the right black steel pipe is very important for both safety and efficiency. Many professionals use clear dimension charts to pick the right size easily. When you understand the diameter, wall thickness, and weight, you can avoid fitting problems in construction or industrial work.
This guide explains everything you need to know about black steel pipe sizes. It includes a simple chart, easy examples to help you find the perfect pipe for your project.
What Is a Black Steel Pipe?
A black steel pipe is made from carbon steel without galvanization. It has a dark oxide coating that offers natural corrosion resistance.It is widely used for gas lines, fire sprinkler systems, and structural purposes. Compared to galvanized pipes, black steel pipes are stronger and more cost-effective.
What are the uses of black steel pipes?
Black steel pipes have a variety of uses due to their high strength and minimal maintenance requirements. They are often used to transport natural gas and water to rural and urban areas, or as pipelines to protect electrical wires and transport high-pressure steam and air. Additionally, black steel pipes are used in the oil and petroleum industry to transport large quantities of oil through remote areas.
Other uses for black steel pipes include gas distribution inside and outside homes, water wells, and sewage systems. However, black steel pipes have never been used to transport drinking water because they are prone to corrosion in water, and minerals in the pipes can dissolve into the water and clog the pipes.
ASTM black steel pipe
ASTM black steel pipe is manufactured according to ASTM international standards, ensuring excellent strength, durability, and corrosion resistance. It is commonly used in gas lines, water transport, and structural applications. With accurate dimensions and stable performance, ASTM black steel pipes provide reliable connections for industrial and construction projects.Select 52 more words to run Humanizer.
Black Steel Pipe Specification Table
| Specification | Outer Diameter (mm) | Inner Diameter (mm) | Wall Thickness (mm) | Specification | Outer Diameter (mm) | Inner Diameter (mm) | Wall Thickness (mm) |
| Black Pipe A 1/2" | 21.4 | 18.2 | 1.5 | Black Pipe B 1/2" | 21.4 | 16.8 | 2.3 |
| Black Pipe A 3/4" | 26.7 | 23.7 | 1.5 | Black Pipe B 3/4" | 26.7 | 21.5 | 2.6 |
| Black Pipe A 1" | 34 | 30 | 2 | Black Pipe B 1" | 34 | 28.4 | 2.8 |
| Black Pipe A 1 1/4" | 42.7 | 38.1 | 2.3 | Black Pipe B 1 1/4" | 42.7 | 36.3 | 3.2 |
| Black Pipe A 1 1/2" | 48.6 | 44.6 | 2 | Black Pipe B 1 1/2" | 48.6 | 41.4 | 3.6 |
| Black Pipe A 2" | 60.5 | 56.5 | 2 | Black Pipe B 2" | 60.5 | 53.3 | 3.6 |
| Black Pipe A 2 1/2" | 76.3 | 71.7 | 2.3 | Black Pipe B 2 1/2" | 76.3 | 68.3 | 4 |
| Black Pipe A 3" | 89 | 84.4 | 2.3 | Black Pipe B 3" | 89 | 81 | 4 |
| Black Pipe A 3 1/2" | 101.6 | 97 | 2.3 | Black Pipe B 3 1/2" | 101.6 | 93.6 | 4 |
| Black Pipe A 4" | 114.3 | 109.7 | 2.3 | Black Pipe B 4" | 114.3 | 106.3 | 4 |
| Black Pipe A 5" | 139.8 | 133.8 | 3 | Black Pipe B 5" | 139.8 | 131.8 | 4 |
| Black Pipe A 6" | 165 | 159 | 3 | Black Pipe B 6" | 165 | 157 | 4 |
| Black Pipe A 8" | 216.3 | 208.3 | 4 | Black Pipe B 8" | 216.3 | 205.3 | 5.5 |
| — | — | — | — | Black Pipe B 10" | 267 | 256 | 5.5 |
| — | — | — | — | Black Pipe B 10" | 273 | 262 | 5.5 |
