Factory price, certified to international standards
Looking for quality, standard steel for construction at a great price?
Cotco Metal Works offers top-quality rectangular steel pipes perfect for your structure. Factory prices and fast nationwide delivery. Request a quote or learn more below.
What is Rectangular Steel Pipe?
Cold-rolled steel pipe with a hollow rectangular cross-section (unequal width and height).
Made from high-quality carbon steel with smooth surface and 90° corners.
Also called rectangular pipe, flat tube, or "matchstick steel box."
Standard length: 6 meters.
Certified by Thai Industrial Standard (TIS 107-2566) and international JIS G3466.
Benefits of Rectangular Steel Pipe
Lightweight but strong, replaces wood or concrete effectively.
Easy and fast installation, saves time and labor cost.
Available in many sizes and thicknesses.
Durable for indoor and outdoor use.
Easy to cut, weld, drill, and paint.
Long-lasting with good corrosion resistance (especially galvanized type).
Limitations
Can rust without proper coating or maintenance.
Not suitable for heavy load-bearing main structures.
Requires skilled welding for secure joints.
Difference from Square Steel Pipe
Rectangular pipe has unequal sides, better bending strength in one direction — ideal for beams, railings, sunshades.
Square pipe has equal sides, strong in all directions — ideal for columns and main supports.
Rectangular pipe saves space and looks stylish, popular for decorative and supporting structures.
Why Choose Cotco Metal Works?
Over 35 years of trusted steel manufacturing experience.
Certified to TIS and ISO standards for quality assurance.
Wide range of sizes and thicknesses, including galvanized and carbon steel.
Competitive factory prices and fast nationwide delivery.
Expert advice and excellent customer service.
Product Details
Sizes from 50x25 mm to 200x100 mm.
Thickness from 0.9 mm to 12.0 mm.
Made-to-order sizes available.
Rectangular Steel Pipe Size Table (mm) and Thickness (mm)
