Black Pipe, Welded steel pipe
Out Diameter: 10.3mm to 406.4mm
Thickness: 0.6mm to 20.0mm
Steel Grade: Q195-Q345, S235JR, S275JR, S355JR, Gr. B-D
Standard: GB/T 3091-2001, BS1387-1985, DIN EN10025, EN10219, ASTM SCH40, ASTM SCH80
Surface Finish: hot dipped galvanized, electro galvanized, black
Out Diameter        Wall Thickness        Length
Inch        mm        mm        meter
1/2"        21.3mm         0.6mm-3.0mm        0.3m-12m
3/4"        26.9mm         0.6mm-3.0mm        0.3m-12m
1"        33.4mm         1.0mm-3.0mm        0.3m-12m
1-1/4"        42.3mm         1.0mm-4.0mm        0.3m-12m
1-1/2"        48.3mm         1.0mm-4.0mm        0.3m-12m
2"        60.3mm         1.5mm-4.0mm         0.3m-12m
2-1/2"        76.1mm         1.5mm-4.0mm         0.3m-12m
3"        88.9mm         1.5mm-9.5mm         0.3m-12m
4"        114.3mm         2.0mm-9.5mm         0.3m-12m
5"        141.3mm         3.0mm-9.5mm         0.3m-12m
6"        168.3mm         3.0mm-12.0mm         1.0m-12.0m
8"        219.1mm         3.2mm-12.0mm         1.0m-12.0m
10"        273mm         3.2mm-12.0mm         1.0m-12.0m
12"        323.8mm         6.0mm-15.0mm         1.0m-12.0m
14"        355.6mm         8.0mm-15.0mm         1.0m-12.0m
16"        406.4mm         8.0mm-20.0mm         1.0m-12.0m
Note: Pre-galvanized round hollow section with OD 19mm-100mm and thickness 1mm-2.3mm are also available.
We can also do according to your requirement.