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AS/NZS 1163 “Cold-formed structural steel hollow sections”

AS/NZS 1163 “Cold-formed structural steel hollow sections”

Characteristics   Tolerances  
External dimensions   1%, with minimum of  0.5mm  
Thickness (t)   10%  
Concavity / Convexity   Max. 0.8% or 0.5mm, whichever is greater  
Squareness of sides   90 1  
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 L 10,000mm   0, +15mm
    10,000mm  L   0, +5mm+1mm/m


About our company

1.We offer galvanized steel pipes with high quality in various grades.The stainless steel pipes cover welded steel pipes and seamless steel pipes.The shapes can be divided into galvanized steel round pipe and galvanized steel square pipe.They are mainly used in industry,medical,machinery,decoration and etc.

2.We always follow the principle of customer first. We are committed to everything from the customer’s practical application needs. In actual purchase activities, according to the special requirements of different customers, our raw materials can be customized in order to apply to the specific application purposes in life. For example:
scaffolding pipe: 48.3 * 3.2; 48.3 * 4.0
EMT conduit/ steel conduit pipe: 17.93 *1.07
zinc coating: 40g, 60g, 80g, …200g
physical & chemical properties of materials: Q195, Q235, Q345, C350, C250, S235jr, S235gt and etc.

3.We have a series of practically complete pipe specifications for your choice. And in view of some special specifications, it is available for any customization. For instance:
Australia: 76 *38; 65*65;
USA: (UL) 17.93, 23.42, 29.54, and etc.
India: 75 *25, 38 *25;
Middle East: 125 *125, 150 *75.
Following the current diversified consumption trend in the steel market, we always adhere to the dedication to meet the customized needs of different customers from different regions in the world. It is believed that you can always find your desired products here.

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