Black Steel Pipes (Round Black Pipe)
Premium Black Steel Pipes by CCM by COTCO – International Standards
Black Steel Pipes, also known as Round Black Pipes, from CCM by COTCO are among the highest-quality structural steel pipes in Thailand. Manufactured with advanced processes, precise standards, and strict quality control, these pipes are available in a wide range of sizes to meet every application need.
If you are looking for strong and durable steel pipes, here is an overview of black steel pipes and the details of our products.
What is a Black Steel Pipe?
Black Steel Pipes, also referred to as Black Round Pipes or Steel Tubes, are a type of Structural Steel made from high-quality carbon steel. They have a hollow circular cross-section with high strength and durability, making them suitable for various construction and design applications.
Common names: Black Pipe, Round Steel Pipe, Steel Tube, or Black Round Tube.
Types of Black Steel Pipes by Usage
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Black Round Pipe (General Use)
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Made from high-quality steel
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Lightweight yet strong and pressure-resistant
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Ideal for light structural work: scaffolding, roof frames, furniture, signage, and small water systems
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Electrical Conduit Pipe
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Specially designed for wiring systems
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Protects electrical wires from pressure, abrasion, and other hazards
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Ensures electrical safety
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Zinc-Coated Steel Pipe
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Coated with zinc for enhanced rust resistance and longer service life
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Easy to thread and available in multiple thicknesses
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Suitable for outdoor applications and irrigation systems
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Hot-Dip Galvanized Pipe
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Also known as “Galvanized Water Pipe”
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Coated through a hot-dip galvanizing process for superior corrosion resistance
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Ideal for industrial use, drainage systems, and high-impact applications
Advantages of Black Steel Pipes
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Stronger than ordinary steel
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Good rust resistance
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High pressure tolerance
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Long service life
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Available in multiple sizes and thicknesses
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Easy welding and fabrication
Manufacturing Process
Produced using Electric Resistance Welding (ERW) technology:
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Steel sheets are uncoiled, slit, and formed into a round shape
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Welded with high-frequency electric resistance for strong seams
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Surface finishing includes Bead Trimming, Sizing, and straightening for precise dimensions
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Available with custom length, surface coatings, and galvanizing options
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Surface finishes include Red Oxide Primer, Varnish Coating, and Hot-Dip Galvanizing
Available Sizes & Specifications
| Normal Size |
OD |
Thickness |
Weight |
| inch |
mm. |
mm. |
mm. |
kg/m |
| ½ |
15 |
21.7 |
2.00 |
0.972 |
| ¾ |
20 |
27.2 |
2.00 |
1.24 |
| 2.10 |
1.65 |
| 2.30 |
1.79 |
| 1” |
25 |
34.0 |
2.00 |
1.24 |
| 2.10 |
1.65 |
| 2.30 |
1.79 |
| 1 ¼ “ |
32 |
42.7 |
2.00 |
2.00 |
| 2.10 |
2.10 |
| 2.30 |
2.29 |
| 2.50 |
2.48 |
| 2” |
50 |
60.5 |
2.30 |
3.30 |
| 2.50 |
3.57 |
| 2.80 |
3.98 |
| 3.00 |
4.25 |
| 3.20 |
4.52 |
| 2 ½ “ |
65 |
76.30 |
2.30 |
4.19 |
| 2.50 |
4.54 |
| 2.80 |
5.08 |
| 3.00 |
5.42 |
| 3.20 |
5.77 |
| 3” |
80 |
89.1 |
2.30 |
4.92 |
| 2.50 |
5.33 |
| 2.80 |
5.96 |
| 3.00 |
6.36 |
| 3.20 |
6.78 |
| 3 ½ “ |
90 |
101.6 |
2.30 |
5.63 |
| 2.50 |
6.10 |
| 2.80 |
6.82 |
| 3.00 |
7.29 |
| 3.20 |
7.76 |
| 3.50 |
8.46 |
| 3.80 |
9.16 |
| 4.00 |
9.63 |
| 4” |
100 |
114.3 |
3.20 |
8.77 |
| 3.50 |
9.56 |
| 3.80 |
10.35 |
| 4.00 |
10.90 |
| 4.30 |
11.66 |
| 4.50 |
12.18 |
| 5” |
125 |
139.8 |
3.20 |
10.77 |
| 3.50 |
11.76 |
| 3.80 |
12.74 |
| 4.00 |
13.40 |
| 4.30 |
14.36 |
| 4.50 |
15.00 |
| 6” |
150 |
165.2 |
3.20 |
12.78 |
| 3.50 |
13.95 |
| 3.80 |
15.12 |
| 4.00 |
15.90 |
| 4.30 |
17.06 |
| 4.50 |
17.80 |
| 4.80 |
18.98 |
| 5.00 |
19.80 |
| 5.30 |
20.89 |
| 5.50 |
21.66 |
| 5.80 |
22.79 |
| 6.00 |
23.60 |
| 7” |
175 |
190.7 |
3.20 |
14.79 |
| 3.50 |
16.15 |
| 3.80 |
17.51 |
| 4.00 |
18.41 |
| 4.30 |
19.76 |
| 4.50 |
20.70 |
| 8” |
200 |
216.3 |
4.50 |
23.50 |
| 4.80 |
25.03 |
| 5.00 |
26.05 |
| 5.30 |
27.57 |
| 5.50 |
28.59 |
| 5.80 |
30.10 |
| 6.00 |
31.10 |
Applications of Black Steel Pipes
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Structural Framework: Roof structures, scaffolding, handrails, fencing
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Fluid Systems: Water pipelines, fire protection systems, cooling systems
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General Utility: Furniture frames, signage, agricultural structures
International Certifications & Standards
Our pipes meet multiple global standards, including:
