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).

PRODUCT RANGE

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
1.60
6500
0.87 1146 100 49
1.60
6500
1.12 890 100 49
2.00
6500
1.36 733 100 49
2.50
6500
1.64 610 100 49
3.00
6500
1.89 529 100 49
25.40 2.00
6500
XL 1.15 866 91 0
20 26.90 2.60
6500
M 1.56 642 127 61
25 33.70 2.00
6500
XL 1.56 640 91 37
25 33.70 2.60
6500
L 1.99 501 91 37
25 33.70 3.20
6500
M 2.41 415 91 37
25 33.70 4.00
6500
H 2.93 341 91 37
32 42.40 2.00
6500
XL 1.99 502 61 37
32 42.40 2.60
6500
L 2.55 392 61 37
32 42.40 3.20
6500
M 3.09 323 61 37
32 42.40 4.00
6500
H 3.79 264 61 37
40 48.30 2.30
6500
XL 2.61 383 61 37
40 48.30 2.90
6500
L 3.25 308 61 37
40 48.30 3.20
6500
M 3.56 281 61 37
40 48.30 4.00
6500
H 4.37 229 61 37
50 60.30 2.30
6500
XL 3.29 304 37 19
50 60.30 2.90
6500
L 4.11 244 37 19
50 60.30 3.60
6500
M 5.03 199 37 19
50 60.30 4.50
6500
H 6.19 161 37 19
65 76.10 2.30
6500
XL 4.19 239 37 19
65 76.10 3.20
6500
L 5.75 174 37 19
65 76.10 3.60
6500
M 6.44 155 37 19
65 76.10 4.50
6500
H 7.95 126 37 19
80 88.90 2.60
6500
XL 5.53 181 19 10
80 88.90 3.20
6500
L 6.76 148 19 10
80 88.90 4.00
6500
M 8.38 119 19 10
80 88.90 5.00
6500
H 10.35 97 19 10
90 101.60 2.60
6500
H 6.35 158 19 10
90 101.60 3.20
6500
L 7.77 129 19 10
90 101.60 4.00
6500
M 9.63 104 19 10
90 101.60 5.00
6500
H 11.91 84 19 10
100 114.30 3.20
6500
XL 8.77 114 19 10
100 114.30 3.60
6500
L 9.83 102 19 10
100 114.30 4.50
6500
M 12.19 82 19 10
100 114.30 5.40
6500
H 14.50 69 19 10
125 139.70 3.00
6500
XL 10.11 99 13 7
125 139.70 3.50
6500
L 11.76 85 13 7
125 139.70 5.00
6500
M 16.61 60 13 7
125 139.70 5.40
6500
H 17.89 56 13 7
150 165.10 3.00
6500
XL 11.99 83 10 7
150 165.10 3.50
6500
L 13.95 72 10 7
150 165.10 5.00
6500
M 19.74 51 10 7
150 165.10 5.40
6500
H 21.27 47 10 7
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.

COATINGS & FINISHES

CIRCULAR HOLLOW SECTION INFO

Structural Steel Info

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

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

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