TIASCO distributes and manufactures Galvanized Steel Round Pipe in a wide range of sizes*. Our galvanised round pipe products are manufactured to comply with AS1450 and our quality management system is certified to ISO9001. This is your assurance that TIASCO products meet the highest standards.
A variety of surface finishes are available across our range of galvanised piping.
Galvanized Round Pipe
Galvanized round pipe has been coated with a layer of zinc. The zinc provides a barrier against corrosion so that the pipe exposed to the outdoor environmental elements. The protective barrier proves equally effective against damage from indoor humidity.
Where It’s Used
This type of pipe is used in a variety of settings. Prior to 1970, galvanized steel was utilized for water-supply pipes in construction. It is used in outdoor applications wherever the strength of steel is desired, such as fence posts and rails, scaffolding and as protective railings.
Interior Corrosion
When used as a water pipe, the zinc barrier coating tends to react to the minerals in the water, often causing plaque to build up inside of the pipe. This impedes the water flow and, in severe cases, may lead to burst pipes. Galvanized round pipe is connected with threaded fittings that may also introduce leaks into the plumbing if not properly fitted.
AS/NZS 1163 C350 RHS, These products are manufactured to meet the mechanical property requirements of both C350 and C450 and are suitable for welding and limited bending.
C350/450L0 hollow sections are suited to load-bearing applications, have good torsional strength, impact strength and high strength to weight ratio. Typical applications include agricultural, general engineering, mechanical handling and structural.
Tolerances
The tolerances on dimensions are established in accordance with AS/NZS 1163.
| Characteristics | Tolerances | ||||
|---|---|---|---|---|---|
| External dimensions |  1%, with minimum of 0.5mm |
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| Thickness (t) | 10% |
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| Concavity / Convexity | Max. 0.8% or 0.5mm, whichever is greater | ||||
| Squareness of sides | 90 1 |
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| External corner profile | (Equivalent to 50×50 or less) | 1.5t to 3.0t | |||
| (Equivalent to greater than 50×50) | 1.8t to 3.0t | ||||
| Twist | 2mm+0.5mm/m in length | ||||
| Straightness | 0.15% of total length | ||||
| Mass per unit length | Not less than 0.96 times the specified mass on individual lengths | ||||
| Length | Mill (or ‘unspecified’) length | 0, +100mm | |||
| Precision length | |||||
L 6,000mm |
0, +5mm | ||||
6,000mm L10,000mm |
0, +15mm | ||||
| 10,000mm L |
0, +5mm+1mm/m | ||||
| NOTE 1)The External dimensions are measured across the flats at positions at least 50mm from the end. |
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