Steel Tube

SSD Global Ltd supplies a comprehensive range of Steel Tubes including round, square, and rectangular hollow sections (RHS), as well as seamless and welded structural and mechanical tubing. Essential components in building construction, infrastructure development, furniture manufacturing, and industrial equipment fabrication.

Structural hollow sections manufactured by high-frequency induction welding (ERW process) are widely used in building columns, beams, trusses, gates, railings, staircase frames, and commercial shelving systems — prized for their high strength-to-weight ratio and torsional rigidity.

Our round steel tubes span from small-diameter mechanical tubing (10mm OD) to large structural pipes (323mm OD). Square and rectangular hollow sections range from 20x20mm to 300x150mm. Seamless steel tubes are available for high-pressure hydraulic systems and structural columns under high compressive loads.

Key Features

• Round, square (SHS), and rectangular (RHS) hollow sections
• ERW welded and seamless manufacturing
• Wide size range: 10mm OD – 323mm OD (round)
• Square: 20x20mm – 300x300mm
• Galvanized, painted, and bare steel finishes
• Standard lengths: 6m / 12m
• Compliant with ASTM, EN, GB, JIS standards
• Full mill test certificates

Technical Specifications

Property	Value
Grade	Q235B / Q345B / S235JR / S355JR / A500
Manufacturing	ERW Welded / Seamless
Round OD Range	10mm – 323mm
Square Size Range	20x20mm – 300x300mm
Wall Thickness	0.8mm – 20mm
Standard Length	6m / 12m
Surface	Black / Galvanized / Painted

Applications & Uses