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square tube 200x200 mm square metal tube astm a500

square tube 200x200 mm square metal tube astm a500

square tube 200x200 mm square metal tube astm a500
square tube 200x200 mm square metal tube astm a500square tube 200x200 mm square metal tube astm a500square tube 200x200 mm square metal tube astm a500square tube 200x200 mm square metal tube astm a500square tube 200x200 mm square metal tube astm a500
CategoriesSquare & Rectangular Steel Tube
BrandYoufa steel pipe manufacture
Size20x20mm - 400x400mm
Wall thickness1.3mm - 20mm
Length6m in stock( or customized)
MaterialQ195, Q235, Q345
Surfaceblack (can be oiled or painted)
Packagein bundles with export pvc package
StandardASTM A53 Gr. A, B, C
Applicationconstruction, building material
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Update Time2022-04-27
Detail Information

Tianjin Youfa Steel Pipe Group Company

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Brief introduction

Tianjin Youfa Steel Pipe Group Co., Ltd were founded on July 1st, 2000,?located?at Daqiuzhuang Village, Tianjin city, which is a large-scale steel pipe manufacturing enterprise producing ERW steel pipe, hot-dipped galvanized steel pipe, seamless pipe, SSAW steel pipe, square/rectangular steel pipe.
Youfa brand was affirmed as a China renowned brand by SAIC trademark bureau in March 2008. Youfa brand of ERW steel pipes, hot-dipped galvanized steel pipes, and SSAW steel pipes, has been awarded as "famous-brand product of Tianjin" by Tianjin government for many consecutive years. In six consecutive years, Youfa Group have been rated as top 500 enterprises of China in the same industry, and as top 500 manufacturing of China. In 2012, Youfa Group was rank No.375 in top 500 enterprises of China, and No. 200 in top 500 manufacturing of China, and No.3 in top 100 private enterprises of Tianjin.

Overview of our mill:

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Production details


Outer Diameter

Square pipe: 20*20mm~400*400mm

Rectangular pipe: 20*40mm~300*500mm

Wall Thickness

Square and rectangular pipe: 0.8~20mm

Length3-12M according to client requirement

Hollow section: ASTM A500, EN10219, EN10210, JIS3466, GB/T 6728

MaterialGr.A, Gr.B, Gr.C,?
S235, S275, S355,?
A36, SS400,?
Q195, Q235, Q345
CertificateISO 9001:2008,SGS, BV, CCIC etc
Finish of pipe

Hot dipped galvanized with zinc 220~260g/m2;

Pre-Galvanized with zinc 30~150g/m2
Painted with black/varnish lacquer;
Oil on the surface to prevent rust;
Bare pipe without painting:

Pipe End

Plain end/ Bevel end;

Groove end;

Joint with flange;
Threaded on two ends, one end with coupling, one end with plastic cap


As per client requirement or mill standard

Painting method:?Spray white paint

PackingOD not less than?273mm: Loose packing,piece by piece.
OD?less than?273mm: In hexagonal seaworthy bundles packed by steel strips.
small sizes nested into big sizes.

Construction / building materials steel pipe

Steel structure

Scaffolding pipe
Fence post steel pipe
Fire protection steel pipe
Greenhouse steel pipe
Low pressure liquid, water, gas, oil, line pipe
Irrigation pipe
Handrail pipe

TechinicalERW (high - frequency welded)
Payment TermT/T, LC
Delivery Time15-45 days (based on quantity) after receiving advanced payment by T/T or LC .
Main MarketSoutheast Asia, South Asia, Middle East, Europe,?
Middle&South America, Africa and Oceania



The detailed specification of Hot dipped galvanized hollow section:?


The detailed specification of Pre galvanized hollow section:??

Hollow Section?
Hollow Section


?Pictures of our production



Production line of our?mill

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Strictly quality control


We attend fairs both in overseas and in China, we?welcome?client visit to our mills


We will get you a fast free quote and schedule your job on the day and time that works best for you.

We Supply ONE-STOP SERVICE erw steel pipe, hot-dipped galvanized steel pipeoil casing pipe,SSAW steel pipe, square/rectangular steel pipe, and steel-plasticcomplex steel pipe, stainless steel pipe,scaffoding and pipe fitting

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