What is steel hollow section?
A steel hollow section refers to a type of steel profile with a hollow cross-section, commonly used in construction, manufacturing, and engineering due to its high strength-to-weight ratio and versatility.
Types of Steel Hollow Sections
Square Hollow Sections (SHS) – Square shape with equal sides, ideal for structural frames and columns.
Rectangular Hollow Sections (RHS) – Flat rectangular shape, often used in gates, fences, and load-bearing structures.
Circular Hollow Sections (CHS) – Round pipes, commonly used in handrails, scaffolding, and fluid transport.
Hollow Section Steel Pipe Material and Standard
| | Carbon Steel and Galvanized Steel | Stainless Steel | ||||||||
| Square Hollow Sections (SHS) and Rectangular Hollow Sections (RHS) | GB/T6728, ASTM 500, EN10219, JIS G3466 | ASTM A312, ASTM A358, ASTM A790, ASTM A928, ASTM A270, ASTM A554, JIS G3459, JIS G3468, JIS G3446, JIS G3447, JIS G3448, EN10217-7, EN10312, DIN 11850, ISO2037, GB/T 12770 | ||||||||
| Circular Hollow Sections (CHS) | GB/T3091, ASTM A53, ASTM A795, ASTM 500, BS1387, EN10219, EN10255, JIS G3444 | |||||||||
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Hollow Section Steel
| Carbon Steel Grade Standards | GB/T3091
GB/T13973 | API 5L
ASTM A53 | BS1387
EN10219 | JIS G3444 JIS G3466 |
| Equivalent Steel Grade | Q195 | Grade A | S195 | STK290 |
| Q235 | Grade B | S235JRH | STK400 | |
| Q355 | Grade C | S355J0H, S355J2H | STK500 |
Stainless Steel Grade: 304 316 304L 316L
Hollow Section Specifications
| Square Hollow Sections (SHS) | Rectangular Hollow Sections (RHS) | Circular Hollow Sections (CHS) | |
| Outside Diameter | 20x20 mm to 500x500 mm | 40x20 mm to 600x400 mm | ERW EFW 21mm to 660mm; SAW 219mm to 3000mm |
| Thickness | 1.0mm to 20mm | 1.0mm to 20mm | ERW EFW 1.0mm to 10mm; SAW 6.0mm to 50mm |
| Length | usually 5.8 or 6 meter, Max. 12meter | usually 5.8 or 6 meter, Max. 12meter | usually 5.8 or 6 meter, Max. 12meter; customized length cutted into 1 to 5.5 meter. |
Common Applications of Steel Hollow Section
Construction: Roof trusses, bridges, and building frameworks.
Scaffolding & Support Structures: scaffolding pipes, fence pipe, fittness equipment and solar structure.
Automotive & Machinery: Chassis, roll cages, and greenhouse frames.
Furniture & Interior Design: Tables, shelves, and decorative elements.
Youfa Hollow Section Steel Pipe and Tube
Galvanized square steel tube and pipe 100mm*100mm thickness 3mm q235/345 material 6m length for construction
bs1387 21.3mm-219.1mm hot dip galvanized steel pipe q195 q235 martial 6 meter for delivery gas
316 stainless steel pipes offer excellent corrosion resistance and high strength for marine and industrial applications.
Carbon Steel ERW Welded Steel Pipe UL FM Approved for Fire Fighting
