DN1400 Large Diameter Welded Steel Pipe
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DN1400 Large Diameter Welded Steel Pipe

Large diameter welded pipe is generally used in double-sided submerged arc welding welding process, according to its welding seam can be divided into large diameter straight seam welded pipe and large diameter spiral welded pipe, which can be divided into straight seam steel pipe according to the different shaping method is divided into UOE, RBE, JCOE steel pipe and so on.
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Product Introduction

Large diameter straight seam welded pipe production process is simple, high production efficiency, low cost, while the strength of large diameter spiral welded pipe is generally higher than the straight seam welded pipe, can use a narrower billet to produce a larger diameter welded pipe, can also use the same width of the billet to produce a different diameter welded pipe, shelf pipe, but the production efficiency compared to the straight seam steel pipe is relatively low. Large diameter welded pipe is mainly used in large-scale pipeline projects, water and gas transmission projects, urban pipeline network construction, municipal engineering, water supply and drainage projects, large-scale construction steel structure, pile foundation and so on. The main testing method of large diameter welded pipe is based on flaw detection. The combination of machine welding and manual welding is used.

Material

10#,20#,35#,45#,Q235,16Mn,etc. A106B,A53B,
Out Diameter: 21.3~813

Wall thickness

2.5~90

Length

6m

Standard

ASTM A106B,A53B DIN ST44,ST35,ST37,ST52
API 5L B,X42,etc. GB 8162,GB8163

Surface

painted or oiled or galvanized or as request

Out Diameter

21.3~813

Packing

In bundle or bulk

ERW Welded Pipe

large diameter welded pipe

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FAQ

Q: How long is your delivery time?
Answer: Depends on the size and quantity of steel pipes. Depending on the quantity, the delivery time for stock steel pipes is 7-10 days, and the delivery time for new products is 20-40 days.

Q: Do you provide samples? Is it free or does it cost extra?
A: Yes, we can provide free steel pipe samples for you to experience.

Q: What is your payment method?
Answer: TT payment method, TT+LC, or 100% L/C at sight and 30-120 days prepaid L/C. The specific payment method needs further negotiation.

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