Product basic Info
ERW galvanized iron tubes are made of pre-galvanized steel strips. The pre-galvanized steel strips welded into round tubes then to square or rectangular tubes. We have passivation progress to avoid rusting.
| Pre-Galvanized Steel Tube (Zinc Coat : 30-275g/m2) | |||||||
| Round Steel Tube | |||||||
| Standard | Outer Diameter | Diameter Tolerance | Wall Thickness | Thickness Tolerance | Length | Length Tolerance | |
| Q195 Q215 Q235 | inch | mm | mm | mm | % | m | mm |
| 1/2'' | 20 | ±0.5 |
0.6-2.2 |
5 | 3-12 | +20, -0 | |
| 3/4'' | 25 | ±0.5 | 0.6-2.2 | 5 | 3-12 | +20, -0 | |
| 25.4 | ±0.5 | 0.6-2.2 | 5 | 3-12 | +20, -0 | ||
| 1'' | 32 | ±0.5 | 0.7-2.2 | 5 | 3-12 | +20, -0 | |
| 38 | ±0.5 | 0.7-2.2 | 5 | 3-12 | +20, -0 | ||
| 1 1/4'' | 40 | ±0.5 | 0.7-2.2 | 5 | 3-12 | +20, -0 | |
| 42 | ±0.5 | 1.0-2.3 | 5 | 3-12 | +20, -0 | ||
| 1 1/2'' | 47 | ±0.5 | 1.0-2.3 | 5 | 3-12 | +20, -0 | |
| 48 | ±0.5 | 1.0-2.3 | 5 | 3-12 | +20, -0 | ||
| 2'' | 59 | ±0.5 | 1.0-2.3 | 5 | 3-12 | +20, -0 | |
| 60 | ±0.5 | 1.0-2.3 | 5 | 3-12 | +20, -0 | ||
| 2 1/2'' | 75 | ±0.5 | 1.0-2.3 | 5 | 3-12 | +20, -0 | |
| 3'' | 87 | ±0.5 | 1.0-2.3 | 5 | 3-12 | +20, -0 | |
| 4'' | 114 | ±0.5 | 1.0-2.3 | 5 | 3-12 | +20, -0 | |
Our Processing
Our factory has strong technology for further process of steel pipes.
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Cutting
We offer precision cutting on lengths of pipes with wide range. The type of cutting used depends on both the size of the pipe and the required precision.
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Beveling
We can apply any type of bevel to any degree required. Beveling can be applied to the face of any size or diameter of pipe.
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Threading
Threaded pipes can provide an effective seal for pipes transporting luquids, gas, steam and hydaulic fluid. We can thread any length of pipe in diameters ranging from 1/8''-8''. Tapers are available are NPT, BSPT, NPS, 3/16'' peerless, and 8 round taper.
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Grooving
Roll grooving can be done in any style according to industry standards. It can be applied to any length of pipe ranging from 1''-12'' diameters.
Contact us
Name: Iris Zhang
E-mail: iris@tytgg.com.cn
Mobile & Whatsapp: +86 18622939671
Skype：+86 18622939671
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