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Large diameter seamless steel pipe

ASTM A355 Large diameter Seamless steel pipe

Type:Seamless Steel Pipe

Processing Service:Welding,Punching,Cutting

Alloy Or Not:Alloy

Tolerance:±5%

Material:carbon/alloy

Section Shape:Round

  • Product Detail

ASTM A355 Large diameter Seamless steel pipe

The main production process of ASTM A355 large-diameter seamless steel pipe is hot-rolled large-diameter seamless steel pipe and heat-expanded diameter seamless steel pipe. The size of the national standard, the thermal expansion seamless pipe is what we often call the thermal expansion pipe. The steel pipe with low density but strong shrinkage is a kind of blank pipe finishing rolling process in which the diameter of the pipe is expanded by the cross-rolling method or the drawing method. It can make the steel pipe thicker in a short period of time, and can produce non-standard and special types of seamless pipes, with low cost and high production efficiency, which is the development trend in the field of international pipe rolling.


Delivery status

The large-diameter seamless steel pipe is annealed and heat-treated before leaving the factory. This delivery state is called the annealed state. The purpose of annealing is mainly to eliminate and improve the structural defects and internal stress left by the previous process, and to make preparations for the structure and performance of the subsequent process. Alloy structural steel, guaranteed hardenability structural steel, cold heading steel, bearings Steel, tool steel, steam turbine blade steel, and wire-type stainless steel are usually delivered in an annealed state.





Product Name

ASTM A355 Large diameter Seamless steel pipe

Size 1/2"-60" seamless,ERW,EFQ, SAW,LSAW, DSAW
Standard ASTM B36.10, API 5L, DIN17175 etc.
Wall thickness STD, XS, XXS, SCH20,SCH30,SCH40, SCH60, SCH80, SCH160, XXS and etc.
Type round
End bevel end/BE/buttweld, PE/ plain end
Surface nature color, black painting, 3PE coating
Material Carbon steel: A106, A53,API 5L GR B, St37, st 35, st45, etc.Pipeline steel:API 5L PSL1, PSL2,  x42,x52, x60,x65, x70, x80 and etc.
Cr-Mo allo steel: P11,P22,P5, P9,P91, 10CrMo9-10, 16Mo3 etc.
Application Petrochemical industry;avation and aerospace industry;pharmaceutical industry;gas exhaust;power plant; ship building;water treaTment,etc.
Advantages ready stock,faster delivery time;available in all sizes,austomized;high quality





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