40x40 iron fence rectangular carbon mild steel tube sizes / weight ms square pipe

$400.00 - $450.00
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
Standard2: API 5L,ASTM A53-2007,ASTM A671-2006,ASTM A53M-2007,ANSI B36.10M-2004,BS 1387,BS 1139,BS EN10025,BS EN 39,BS EN10219,DIN EN 10025,GB/T3901,JIS G3444-2006,JIS G3466
Grade Group: 10#-45#,16Mn,A53-A369,Q195-Q345,ST35-ST52
Grade: 20#,16Mn,A53(A,B),Q235,Q345,Q195,Q215,St37,St52,St42
Place of Origin: Tianjin China
Application: Construction/Fence post/water, gas, oil transportation/greenhouse
Thickness: 0.95 - 20 mm
Surface Treatment: Pre-galvanized/hot dipped galvanized/Bare/ black/ oil
Certification: ISO9001/API/SGS, BV, TUV certificate
Technique: ERW
Alloy Or Not: Non-alloy
Special Pipe: mild steel pipe
Galvanized coating: Pre-gal:30-150g/m2;Hot dipped galvanized: 200-350g/m2
Length: 3~12m as per client requirement
Surface: Pre-Galvanized/Hot dipped Galvanized
Shape: Square, Rectangular
MOQ: 10 Tons
Standard: ASTM A500//EN10219/EN10210/AS1163/JIS3466
Material: Q195/Q215/Q235/Q345, GR.A/B, S235/S355
Usage: Construction Structure/greenhouse/Fence Post
Compoany name: Youfa
Section Shape: Square/Rectangular
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

Production Name:  40x40 iron fence rectangular carbon mild steel tube sizes

Tianjin Youfa Steel Pipe Group Company


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:







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



The detailed specification of hollow section: 


Pictures of our production



Production line of our mill



Strictly quality control


The other main production of our company



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


Who We are?

(1) China Top 500 Enterprises Industry Leading Brands 
15 years experience in manufacturing and exporting steel products since 2000.
(3) For 
10 Consecutive Years of The First
 Production and Sales


What We own?

8000 employees.
59 ERW steel pipe production lines

36 hot-dipped galvanized steel pipe production lines

24 square and rectangular steel pipe production lines 

18 SSAW steel pipe production lines
16 steel-plastic complex steel pipe production lines

9 hot-dipped galvanized square and rectangular steel pipe production lines

5 Seamless steel pipe production lines
3 national accredited laboratory 
 Tianjin government accredited business technology center


 Why choose Tianjin Youfa steel pipe group?

1. Strong strength
As the largest steel pipe manufacturer in Tianjin, China, we give more support about the orders, customers will have more confidence to cooperate with our group

2. Quality guarantee
Youfa group specialized in producing carbon steel pipes for many years, own experienced workers and advantage machine

3. Flexible terms
Flexible clause not only to protect the benefit of supplier, but also the buyers

4. Delivery lead time
To satisfied the urgency need of customers

5. Competitive price
We offer better price based on the support of our whole group with low price and better quality