| Product | Hot Dip Galvanized Steel Pipe |
| Material | Carbon Steel |
| Grade | Q195 = S195 Q235 = S235 Q345 = S355JR |
| Standard | EN39, BS1139, BS1387, EN10255GB/T3091, GB/T13793 |
| Surface | Zinc coating 200-500g/m2 (30-70um) |
| Ends | BSP threaded |
| with or without caps |
BSP stands for British Standard Pipe, which is a type of threaded pipe fitting commonly used in the UK and other countries that follow British standards.
Identification and Marking
Marking: Pipes are marked with the manufacturer’s name, the standard number (BS 1387), the pipe class (light, medium, heavy), and the nominal diameter.
Galvanized Coating: The uniform zinc coating should be free from blemishes and should pass specific adhesion and corrosion resistance tests.
| DN | OD | OD (mm) | BS1387 EN10255 | ||
| LIGHT | MEDIUM | HEAVY | |||
| MM | INCH | MM | (mm) | (mm) | (mm) |
| 15 | 1/2” | 21.3 | 2 | 2.6 | - |
| 20 | 3/4” | 26.7 | 2.3 | 2.6 | 3.2 |
| 25 | 1” | 33.4 | 2.6 | 3.2 | 4 |
| 32 | 1-1/4” | 42.2 | 2.6 | 3.2 | 4 |
| 40 | 1-1/2” | 48.3 | 2.9 | 3.2 | 4 |
| 50 | 2” | 60.3 | 2.9 | 3.6 | 4.5 |
| 65 | 2-1/2” | 76 | 3.2 | 3.6 | 4.5 |
| 80 | 3” | 88.9 | 3.2 | 4 | 5 |
| 90 | 3-1/2" | 101.6 | - | - | - |
| 100 | 4” | 114.3 | 3.6 | 4.5 | 5.4 |
| 125 | 5” | 141.3 | - | 5 | 5.4 |
| 150 | 6” | 165 | - | 5 | 5.4 |
| 200 | 8” | 219.1 | - | - | - |
| 250 | 10” | 273.1 | - | - | - |