Diving into the modern world, ERW Hollow Section plays a vital role in steel construction. Hollow Section has 3 main types of form Circular Hollow Section (CHS), Square Hollow Section ( SHS), Rectangular Hollow Section (RHS) with various sizes, thicknesses… that are suitable for many applications.

Hollow Section is a type of metal profile with a hollow tubular cross section. Throughout the manufacturing process flat steel plate is gradually changed in shape to become round where the edges are presented ready to weld. The edges are then welded together to form the mother tube. During the manufacturing process, the mother tube goes through a series of shaping stands which form the round HSS (mother tube) into the final square or rectangular shape.

MRS Steel Vietnam supplies these Hollow Sections as per customer’s requirement with special surface treatment such as one more layer of chromated, lacquered, also with panting to meet customers’ needs. 

Thickness Range: 0.55 – 10.00mm 


+ Round Pipe: Outside diameter from :12.7 mm – 323.8 mm 

+ Square Steel Pipe: Sizes from : 10×10 mm – 250×250 mm.

+ Rectangular Steel Pipe: sizes from 10×20 mm – 200×300 mm.

Grade: standard quality 

Coating mass (g/m2): as per requirement 

Surface: black, galvanized, hot-dipped galvanized.


If you are looking for ERW Hollow section supplier in Vietnam, MRS Steel is most reliable and top priorities that you should take into consideration. 

Please contact me via:

Mr. Andrew

Whatsapp/ Viber:+84 938 317 622

Email: tung@maresos.com

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