EN 10255 SMLS Fire Steel Pipes
EN 10255 seamless steel pipe is formed by rolling strip and welding the seam, with precise dimension and light weight. It can be used for water, steam and air conveyance.

Advantages :
1. Flexibility and ease of operation
2. Sufficient opportunities to incorporate future plant expansion
3. Easy plant foundation
4. Quick changeover times to other diameters
Colour Choose :





Example Size
Note: Some of the main specifications are shown below, please contact us for more details.
Tube | Nominal Size | Outside Diameter | Wall Thinkness | Mass of Black Tube | |||||
Max | Min | Plain End | Screwed and Socketed | ||||||
– | DN | mm | mm | mm | lb/ft | kg/m | lb/ft | kg/m | |
L2 | 1/2″ | 15 | 21.4 | 21.0 | 2.0 | 0.636 | 0.947 | 0.646 | 0.956 |
2″ | 50 | 60.2 | 59.6 | 2.9 | 2.74 | 4.08 | 2.81 | 4.15 | |
4″ | 100 | 113.9 | 113.0 | 3.6 | 6.55 | 9.75 | 6.84 | 10.0 | |
Medium | 1/2″ | 15 | 21.7 | 21.1 | 2.6 | 0.813 | 1.21 | 0.828 | 1.22 |
3″ | 80 | 89.5 | 88.1 | 4.0 | 5.62 | 8.37 | 5.80 | 8.54 | |
6″ | 150 | 166.1 | 164.1 | 5.0 | 13.24 | 19.7 | 13.3 | 20.3 | |
Heavy | 1/2″ | 15 | 21.7 | 21.1 | 3.2 | 0.968 | 1.44 | 0.983 | 1.45 |
3″ | 80 | 89.5 | 88.1 | 5.0 | 6.92 | 10.3 | 6.87 | 10.5 | |
6″ | 150 | 166.1 | 164.1 | 5.4 | 14.31 | 21.3 | 14.7 | 21.9 |
One-stop service to facilitate your purchase
The Lai Group continues to provide service and support after your purchase. To save you time, we offer you numerous value-added services such as processing, logistics management and testing.
Processing Services:
- OEM & ODM
- Protective Coatings
- Saw and Flame Cutting
- Beveling, Threading and Grooving