R.K. Steel Manufacturing Company Pvt. Ltd. (RKS) – GI / GP Pipes & Tubes
This is a pipe and tube manufacturer and supplier based in Chennai, Tamil Nadu. Their branded products include hot-dip galvanized (GI) pipes and pre-galvanized (GP) steel pipes/tubes.
Hot Dip Round Galvanized Pipes
- Size range: 15 NB to 150 NB (½″ to 6″ nominal)
- Thickness: 1.40 mm – 8.00 mm
- Length: 4.0 m – 6.5 m
- Used for water supply, scaffolding, fire systems, hand pumps, greenhouse structures.
Hot Dip Galvanized Square Pipes
- Size range: 25×25 mm to 125×125 mm
- Thickness: 1.40 mm – 8.00 mm
- Length: 4.0 m – 6.5 m
- Applications: Construction, warehouses, bus body building.
Hot Dip Galvanized Rectangular Pipes
- Size range: 50×25 mm to 150×100 mm
- Thickness: 1.40 mm – 8.00 mm
- Length: 4.0 m – 6.5 m
- Used in structural works, framing, vehicle bodies
size & gauge chart
RKS PIPES – Size & Gauge Chart (Round Pipes)
| Nominal Bore (NB) | OD (mm) | Light Gauge | Medium Gauge | Heavy Gauge |
|---|---|---|---|---|
| 15 mm (½”) | 21.3 | 1.8 mm | 2.3 mm | 2.9 mm |
| 20 mm (¾”) | 26.9 | 1.8 mm | 2.3 mm | 2.9 mm |
| 25 mm (1”) | 33.7 | 2.0 mm | 2.9 mm | 3.2 mm |
| 32 mm (1¼”) | 42.4 | 2.3 mm | 2.9 mm | 3.2 mm |
| 40 mm (1½”) | 48.3 | 2.3 mm | 3.2 mm | 3.6 mm |
| 50 mm (2”) | 60.3 | 2.9 mm | 3.6 mm | 4.0 mm |
| 65 mm (2½”) | 76.1 | 3.2 mm | 3.6 mm | 4.5 mm |
| 80 mm (3”) | 88.9 | 3.2 mm | 4.0 mm | 4.8 mm |
| 100 mm (4”) | 114.3 | 3.6 mm | 4.5 mm | 5.4 mm |
