Orrcon Steel distributes and manufactures circular hollow sections in sizes ranging from 25.4mm OD up to 610mm OD.* Our Circular Hollow Sections are manufactured to the Australian Standard for structural steel hollow section AS/NZS 1163 and cover steel grades C250L0 and C350L0.
A variety of surface finishes are available across our range of structural tubulars. Not all finishes and grades are available in all sizes. Orrcon Steel also provides additional services including Jet rolling, Minipaks®, laser tube cutting, pack cutting, pipe threading, shouldering and roll grooving. * Please note that some gauges & diameters within this range are sourced from pre-qualified suppliers - which may involve longer lead times. Sizes outside this range are available (subject to enquiry).
| NB (mm) | OD (mm) | Nom. Thick (mm) | Length (mm) | Class AS1074 | Grade CL250L0 | Grade CL350L0 | PTD* | ALLGAL* | MAXI-TUBE* | Nom. Linear Mass (Kg/m) | Nom. m/Tonne | Lengths /Pack | Lengths /MiniPak |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0 | 25.40 | 2 | 6500 | XL | ◆ | ✓ | ✓ | 1.15 | 866 | 91 | |||
| 20 | 26.90 | 2.6 | 6500 | M | ✓ | ✓ | ✓ | 1.56 | 642 | 127 | 61 | ||
| 25 | 33.70 | 2 | 6500 | XL | ✓ | ◆ | ✓ | ✓ | ✓ | 1.56 | 640 | 91 | 37 |
| 25 | 33.70 | 2.6 | 6500 | L | ✓ | ◆ | ✓ | ✓ | 1.99 | 501 | 91 | 37 | |
| 25 | 33.70 | 3.2 | 6500 | M | ✓ | ✓ | ✓ | ✓ | 2.41 | 415 | 91 | 37 | |
| 25 | 33.70 | 4 | 6500 | H | ✓ | ✓ | ✓ | ✓ | 2.93 | 341 | 91 | 37 | |
| 32 | 42.40 | 2 | 6500 | XL | ✓ | ◆ | ✓ | ✓ | ✓ | 1.99 | 502 | 61 | 37 |
| 32 | 42.40 | 2.6 | 6500 | L | ✓ | ◆ | ✓ | 2.55 | 392 | 61 | 37 | ||
| 32 | 42.40 | 3.2 | 6500 | M | ✓ | ✓ | ✓ | ✓ | 3.09 | 323 | 61 | 37 | |
| 32 | 42.40 | 4 | 6500 | H | ✓ | ✓ | ✓ | 3.79 | 264 | 61 | 37 |
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Notes
- [◆] Denotes tensile strength exceeds AS 1074 specification.
- Non standard sizes, surface finishes and lengths available subject to enquiry. Minimum order quantities (MOQ’s) apply.
- NOPC & OILED available subject to enquiry.
- Pipe to be used for low pressure water/gas reticulation is manufactured to meet AS 1074.
- Please contact your local Orrcon Steel / Metalcorp branch for MAXI-TUBE® products.
Standard Tolerances
| Standard | Grade* | Yield Strength | Tensile Strength | CHS | RHS & SHS | ||||
| MPa (min) | MPa (min) | <15 | 15-30 | >30 | <15 | 15-30 | >30 | ||
|---|---|---|---|---|---|---|---|---|---|
| AS1163 | C250/C250L0 | 250 | 320 | 18 | 20 | 22 | 14 | 16 | 18 |
| C350/C350L0 | 350 | 430 | 16 | 18 | 20 | 12 | 14 | 16 | |
| C450/C450L0 | 450 | 500 | 12 | 14 | 16 | 10 | 12 | 14 | |
AS1163 Dimensional Tolerance
| Characteristic | Pipe (CHS) | Rectangular & Square (RHS / SHS) | |
|---|---|---|---|
| External dimensions (d, b, d0) | ±1% with minimum of ±0.5mm& maximum ±10% | ±1% with minimum of ±0.5mm | |
| Thickness (t) | d≤406.4mm | ±10% | ±10% |
| d>406.4mm | ±10% with max of ±2mm | ||
| All Sections has a mass not less than 96% of specified nominal mass | |||
AS1163 Shape Tolerances
| Characteristic | All Sections | |
|---|---|---|
| Corner Radius ≤50x50mm equivalent perimeter | 1.5t to 3t | |
| Corner Radius >50x50mm equivalent perimeter | 1.8t to 3t | |
| Twist (v) | ≤2mm ±0.5mm/m length | |
| Concavity / Convexity | Max 0.8% or 0.5mm, whichever is greater | |
| Squareness | 90 ± 1° | |
| Pipe (CHS) | Rectangle & Square (RHS/SHS) | |
| Straightness | 0.20% of total length | 0.15% of total length0.15% of total length |