Straight Cut GB/T 3091 tensile strength galvanized iron pipe for ventilation

1-24 Tons
25-99 Tons
>=100 Tons
Min. Order
1 Ton
Company Information

Tianjin Youfa Hongtuo Steel Pipe Manufacture Co., Ltd.

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

Port: Tianjin
Payment Terms: L/C,T/T
Supply Ability: 500000 Ton/Tons per Month
Standard2: API 5L,ASTM A106-2006,ASTM A53-2007,ASTM A53M-2007,BS 1387,BS 1139,BS EN10219,DIN 2444,GB/T 3091-2001,GB/T 9711.2-1999,GB/T3901,JIS G3444-2006
Grade Group: 10#-45#,16Mn,A53-A369,Q195-Q345,ST35-ST52
Grade: 20#,16Mn,A53(A,B),A106(B,C),Q235,Q345,Q195,Q215,St42
Thickness: 1 - 20 mm
Section Shape: Round
Outer Diameter(Round): 21.3 - 610 mm
Place of Origin: Tianjin China
Application: Fluid Pipe
Technique: ERW
Surface Treatment: Galvanized
Special Pipe: Not Special Pipes
Alloy Or Not: Non-alloy
Secondary Or Not: Non-secondary
Brand: YOUFA
Pipe End: Bevel, Plain, Thread, Grooved
Zinc Coating: 30~70 um or according to customer
Thickness Tolerance: +/-10%
Packaging Detail: 1. Packed by steel strips. 2. Packed by plastic bag.
Galvanized pipe is coated with zinc and metal. This makes them more durable than
older pipes which were crafted from steel or iron. These pipes also have added
protection, because the coating of zinc prevents issues with corrosion.
Materialcarbon steel
colourNickel White
StandardASTM, BS1387, BS1139, EN10219, API 5L.
GradeGr A, Grade B, Grade C
UsedConstruction, Structural, Building, Water, Oil and Gas


Product Show:



Pipe / Tube Ends Treatment  
Plain Ends , Beveled Ends, Theared Ends, Round Grooveed Ends, Threaded Ends one end with
coupling and one end with plastic caps, or accorsing to customers' requirement.

Galvanized Pipes Ends.jpg



Our Quality Control:

Quality Control ..jpg


Our Galvanized Steel Pipes factory:

HDG pipe production line.jpg


Galvanized pipe is used in outdoor and indoor applications due to its anti rusting components.
The zinc coating slows the process of corrosion and can make the pipe last for decades (in the right environment). This makes it ideal for marine applications and for transporting hot and cold water alike. Galvanized pipe isn't perfect for every type of job though. There are disadvantages
to using galvanized pipe with gas lines and are not typically used in underground applications.

Galvanized pipes have a longevity, are cost effective, and are low maintenance. They can be inspected with a trained eye and are easily assembled. For all your galvanized piping needs, choose
a professional who has the experience you need.

Tianjin Youfa Steel Pipe Group, the biggest steel pipe manafacturer in China.
We have produced over 100 Million tons steel pipes in 2016, Owning 59 ERW steel pipe
production lines, 34 hot-dipped galvanized steel pipe production lines. 15 Square / Rectangular steel pipe production lines. 9 SSAW steel pipe production lines, 5 seamless steel pipe production lines, 8 steel-plastic complex steel pipe production lines, 1 national accredited laboratory, and 1 Tianjin government accredited business technology center.

Our feature items cover all kinds of steel pipes:
1. ERW Steel pipe, OD10-OD610, thickness: 0.3-20mm;
2. Hot dipped galvanized steel pipe, OD21.3-OD610, thickness: 1.0-20mm;
3. Square steel pipe, 10*10 - 400*400, thickness: 0.3-18mm;
4. Rectangular steel pipe, 6*10-300*500, thickness:0.3-18 mm;
5. Seamless steel pipe, OD13.7-OD610.0, thickness 2.24-30.96 mm;
6. Spiral steel pipe, OD219-OD3048, thickness 5.4-25.4mm.
7. LSAW steel pipe, OD457-1422, Thickness 9.53-46mm.

If you have any project or plan, i could give you some professional advise

and best quotation.


Company Information
Tianjin Youfa Hongtuo Steel Pipe Manufacturer Co., Ltd subordinates to Youfa Steel Pipe Group. AndTianjin Youfa Dezhong Steel Pipe Co., Ltd is a subordination company of Youfa Steel Pipe Group as well. 
Youfa Steel Pipe Group were founded in 2000, with the headquarters location at the largest welded pipe production basein China-Daqiuzhuang Village, Tianjin city, which is a large-scale steel pipemanufacturing enterprise producing many kinds of pipe products, such as ERWsteel pipe, hot-dipped galvanized steel pipe, oil casing pipe,SSAW steel pipe, square/rectangular steel pipe, and steel-plasticcomplex steel pipe.

Besides headquartering in Tianjin, currently we have 12 subsidiariesand branches in Tangshan, Handan, and Dezhou. There are totally 8000 employees,in addition 59 ERW steel pipe production lines, 34 hot-dipped galvanized steelpipe production lines, 10 square and rectangular steel pipe production lines, 9SSAW steel pipe production lines, 8 steel-plastic complex steel pipe productionlines, 1 national accredited laboratory, and 1 Tianjin government accreditedbusiness technology center. 

YOUFA brand was affirmed as a China renowned brandby 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-brandproduct of Tianjin" by Tianjin government for many consecutive years. In sixconsecutive years, Youfa Group have been rated as top 500 enterprises of Chinain the same industry, and as top 500 manufacturing of China. In 2012, YoufaGroup was rankes No.375 in top 500 enterprises of China, and No. 200 in top 500manufacturing of China, and No.3 in top 100 private enterprises of Tianjin.

Products are exported to more than 100 countires,such as North America ,South America ,Europe, Africa,Southeast Aisa,Middle East. 

Youfa steel pipe used for water conservancy project, fire protection engineering, gas engineering,At the same time has led the drafting of the 7 countries standard, but also has a number of technical invention patents.

In the future, hand in hand, go ahead, for the steel pipe into a respected enterprises and make unremitting efforts to happiness!

Q: What about your payment term?
A: Usually L/C or 30% as deposit and 70% against copy of B/L by T/T.
Q: What about your standard delivery date ?
A: Within 10-25 days after receiving your deposit.
Q: How about your capacity?
A: For steel pipes, 10,000,000 tons per year.
Q: What about your package
A: Usually as customer's requirement.
Q: If products have some quality problem,how would you deal with?
A: We will responsible for all of our quality problems.
Q: How to get accurate price / quotation from you?
A: Please kindly tell us below details and we'll send our quotation to you ASAP:
1) Pipe's outer diameter 
2) Wall thickness    
3) Section Shape (round, square etc.)
4) length for each pipe       
5) steel grade   
6) Standard (e.g.: API 5L)
7) Order quantity   
8) Designation port (BK, BKW etc.)  
9) Trade Terms
 In all, the more detailed information, the more exact price we quote.