Pipe Elbow
Pipe Tee
Pipe Reducer
Pipe Cap
Pipe Bend
Seamless Steel Pipe
ERW Steel Pipe
Weld Neck Flange
Slip On Flange
Blind Flange
Forged fitting

 

· pipe fittings cap have five conventional methods
· Technical essentials of carbon steel elbow production
· Stainless steel welded pipe fittings reducer have five conventional methods
· What’s the Technical Requirement of Weld Neck Flanges?
· How to judge the quality of stainless steel pipe fittings bend?
· Maintenance of blind flange production equipment
· Stainless steel tee in the valve industry application characteristics
· Manufacturing process of carbon steel elbow

 

Location:HOME  »  NEWS
NEWS
ERW steel pipe and seamless steel pipe difference
Source :admin   Time:8/9/2017 9:44:24 PM   hit:

  ERW steel pipe and seamless steel pipe difference

  ERW steel pipe and seamless steel pipe is the biggest difference between ERW has a weld, which is the key to the quality of ERW steel pipe. Modern ERW steel pipe production process and equipment, due to the international community, especially the United States and other years of unremitting efforts, making the ERW Steel 24 Inch Steel Pipe has been more satisfied with the solution. Some people are ERW steel pipe seamlessly divided into geometric seamless and physical seamless. Geometric seamless is to remove ERW steel pipe inside and outside the burr. As the structure of the inner burr removal system and the continuous improvement and improvement of the tool, the clearance of the burrs in the large and medium diameter pipes has been well handled. Burr can be controlled in the -0.2mm ~ O.5mm or so. Physical seamless means that there is a difference between the metallographic structure and the base metal inside the weld, resulting in a decrease in the mechanical properties of the weld area. It is necessary to take measures to make it uniform and uniform. The high temperature welding process of ERW steel pipe causes the temperature distribution gradient near the edge of the tube and forms the characteristic area such as melting zone, semi-melting zone, superheated organization, normalizing area, incomplete normalizing area and tempering zone.

         Previous :Seamless steel pipe storage
               Next:Hebei Shengtian Group specializes in producing all kinds of pipe fittings and flanges
Friendly Links: carbon steel pipe fitting    steel shots    pipe fittings    carbon steel pipe fittings factory    Seamless Steel Pipe    steel pipe    valve    Butt welded elbow    shengtian pipe fitting    pipe fittings manufacturers    Butt weld pipe fitting    A234 wpb pipe fitting    steel seamless pip    accesorios de tubería    conexões    flanges    ANSI B16.9 weld neck flange     Фитинг    Screwed Fittings    steel flange    ERW pipes    manhole covers    steel grit    reeqlink   
Copyright ©Hebei Shengtian Pipe fittings Group Co.,Ltd.   
       Copyright ©Hebei Shengtian Pipe-fitting Group Co.,Ltd.     Email : sale@stpipefitting.cn 
 Add : Xiwang New District, Mengcun County,Hebei Province,ChinaSupport:boyikeji