square tube 20x20 mm steel galvanized square hollow tube gi pipe for greenhouse

$500.00 - $550.00
Min. Order
3 Metric Tons
Company Information

Tianjin Youfa Pipeline Technology Co., Ltd.

CN Manufacturer, Trading Company
Response Time
Response Rate:
4 Years Paid Supplier Supplier Trade Assurance
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Quick Details

Port: Xingang Port, Tianjin
Payment Terms: L/C,D/A,D/P,T/T,Western Union,MoneyGram,L/C, T/T, D/A, D/P
Supply Ability: 8000 Metric Ton/Metric Tons per Month
Standard: API
Standard2: API 5L
Grade Group: 10#-45#
Grade: 20#
Thickness: 0.95 - 20 mm
Section Shape: Square/Rectangular
Place of Origin: Tianjin China
Application: Construction/Fence post/water, gas, oil transportation/greenhouse
Technique: ERW
Certification: ISO9001/API/SGS, BV, TUV certificate
Surface Treatment: Pre-galvanized/hot dipped galvanized/Bare/ black/ oil
Special Pipe: mild steel pipe
Alloy Or Not: Non-alloy
Length: 1~12m as per client requirement
Surface: Pre-Galvanized/Hot dipped Galvanized
Pipe End: Plain End
Standard: ASTM A500//EN10219/EN10210/AS1163/JIS3466
Usage: Construction Structure/greenhouse/Fence Post
Key words: square tube 20x20 mm steel
Product name: square tube 20x20 mm steel galvanized square hollow tube
Packing: Sea Worthy Packing
Payment terms: T/T
Company name: YOUFA
Packaging Detail: 1.Big OD (above OD273mm): in bulk loose packing 2.Small OD (below OD273mm):packed by bundles and fastened by steel strips 3.Normal OD: bundles with eight heavy steel strips ,plastic tarpaulin cloth cover all the bundles and including two slings per bundle with two steel tags

    square tube 20x20 mm steel galvanized square hollow tube gi pipe for greenhouse

Tianjin Youfa steel pipe Group co.,ltd were founded on July 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

 Production details



Outer Diameter

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

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

Wall Thickness

Round pipe: 0.95~17.75mm

Square and rectangular pipe: 1.7~16mm

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






Company information

Tianjin Youfa steel pipe 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 










Strictly quality control



1.100% after-sales quality assurance 

2.Reply within 24 hours

3. Any payment method

4.Free sample


galvanized pipe process





Q:Are you trading company or manufacture?

A:Factory.we are Youfa group with 3 production area in china

Q:Can I have a trial only for several tons?

A:of course!we can ship the cargo for you with LCL service

Q:How long is your delivery time?

A:Generally it is 3-5 days if goods are in stock.or it is 30days if the goods are not in stock.

Q:What is your terms of payment?

A: T/T,L/C (For big order ,30-90days can be acceptable)

Q:Are you gold supplier and do trade assurance



The other main production of our company