Rectangular Hollow Sections (RHS)
Rectangular Hollow Sections (RHS) are cold-formed, welded steel tubes with a rectangular cross-section. Known for their high strength-to-weight ratio, structural efficiency, and aesthetic appeal, RHS tubes are widely used in construction, machinery, and architectural applications.
Specifications
Size:
Width: 20mm – 500mm
Height: 10mm – 300mm
Wall Thickness: 1.2mm – 16mm
Length: 6m (standard), or customized (up to 12m).
Materials & Grades:
Carbon Steel: ASTM A500 (Gr. B, C), EN 10219 (S235JR, S355JR), JIS G3463 (STKR400).
Stainless Steel: ASTM A554 (304, 316), EN 10296-2.
Aluminum: EN 755, ASTM B221 (6061, 6063).
Tolerances: (EN 10219 / ASTM A500):
Dimensional: ±1% (width/height), ±10% (wall thickness).
Straightness: ≤1.5mm/m.
Performance Characteristics
High Strength:
Excellent load-bearing capacity due to uniform stress distribution.
Yield strength: 235MPa – 460MPa (varies by grade).
Lightweight & Durable:
Optimized weight for cost-effective transportation and installation.
Corrosion-resistant options (e.g., galvanized, painted, or stainless steel).
Weldability & Machinability:
Compatible with standard welding (MIG/TIG) and cutting methods.
Surface Finish:
Smooth, mill finish (standard) or coated (hot-dip galvanized, powder-coated).
Applications
Construction: Building frames, roof trusses, columns, and modular structures.
Infrastructure: Bridges, signage, and highway guardrails.
Machinery: Equipment frames, conveyor systems, and agricultural machinery.
Architecture: Handrails, furniture, and decorative façades.
Automotive: Chassis components and roll cages.
Certifications & Compliance
Standards: ASTM A500, EN 10219, JIS G3463, ISO 657-14.
Certifications: CE, ISO 9001, RoHS (for environmental compliance).
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