Size:
  Square pipe: 10x10 - 500x500mm
  Rectangular pipe: 10x20 - 400x600mm

  Wall Thickness: 0.6-20mm
  Length: 1-12m according to customers' requirements
  Zinc coating: 210-600g/m² standard
  Type: welded pipe/seamless pipe/cold drawn seamless tube
  Technique: electronic resistance welded (ERW)
  HS code: 7306610000

Standards:
  ASTM A53, BS1387, DIN2440
  SGS, ASTM-A53A, BS1387-1985
  GB/T3091-2001, GB/T8162, GB/T8163:10#, 20#, 35#, 45#
  16MN(Q345B)GR. A, GR. B, GR. C
  ASTM A106 GR. A, GR. B, GR. C
  API 5L A B X42, X46, X52, X60, X65, X70, X80  
  Certificates: API 5L, API 5CT, ISO, CE

Material
  Q195→grade B, SS330, SPHC, S185
  Q215→grade C, CS Type B, SS330, SPHC
  Q235→grade D, SS400, S235JR, S235JO, S235J2

Surface treatment:
  1) Bared
  2) Black painted (varnish coating)
  3) Galvanized
  4) With oiled
  5) As per request

Remarks:
  1) Payment term: T/T, L/C
  2) Trade terms: FOB/CFR/CIF
  3) Minimum quantity of order: 10MT
  4) Delivery period: 10 to 30 days 

Section shape: round/square/rectangular
  Object classification: decorative square tube, square tube machine tools, industrial machinery square pipe, chemical pipe, steel square tube, square tube shipbuilding, automotive square tube, square tube steel beams, special purpose square tube

End finish:
  Plain/plastic caps, punching, galvanized steel pipes

End protector:
  1) Plastic pipe cap
  2) Iron protector
  3) As per request
  Properties of products: hot galvanized square tube has good strength, toughness, ductility and welding process performance and have good ductility, its alloy layer and the steel base firmly attached, so hot galvanized square tube can be cold-rolled, brushed, bending and other forming without damaging

Usage:
   Steel construction, mechanical, manufacturing, construction, automobile manufacturing, shipbuilding, electricity and more

Tianjin Youfa brand S235jr grade Square and Rectangular Tube
 
Square Pipes Loading to Container:


Our Advantage of Square Pipes:



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Factory Display: YOUFA steel pipe group.




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About US:
Tianjin YOUFA were founded on July 1st,2000, besides headquartering in Tianjin, currently we have 11 subsidiariesand branchs in Tangshan, Handan, and Shanxi. They are totally 9000 employees, In addition 64 ERW Steel Pipe production line, 42 Hot dipped galvanized steel pipe production line, 33 square and rectangular praoduction lines, 15 galvanized square and rectangular praoduction lines, 9 SSAW steel pipe production line, 3 National accredited Laboratory and 1 Tianjin government accreditedbusiness technology center, in 2019, we had produced all kinds of steel pipes 16 million tons, realizing export being USD 0.16 billion. Our steel pipes production and sale AT NO.1  in nine consecutive years.

Why Choose US:
We are the Biggest steel pipe manufacturer in China. the most reliable steel pipe supplier in China.
And we have rich experience in handling order for heavy buyers with professional process.

1. Stable raw material purcahsing.
2. Favorable orders follow-up management.
3. Laudable Lead-time & Shipment Control.
4. Traceable quality evaluation.
5. Flexible payment terms.

If you are Interest, Send me the inquiry here!

Vincent Cao