Small-diameter Welded Pipe

Date: 2021-03-09

Small-diameter Welded Pipe The small-diameter welded pipe is also called small-diameter welded steel pipe, which is a steel pipe made by welding a steel plate or a strip steel after being crimped. The production process of small diameter welded pipe is simple, the production efficiency is high, there are many varieties and specifications, and the equipment cost is small, but the general strength is lower than that of seamless steel pipe. Since the 1930s, with the rapid development of continuous production of high-quality strip steel and the improvement of welding and inspection technology, the quality of welds has been continuously improved, and the variety and specifications of small-diameter welded pipes have been increasing and replaced in more and more fields seamless steel pipe. Welded steel pipe is divided into straight seam welded pipe and spiral welded pipe according to the form of weld. The blanks used for small-diameter welded pipes are steel plates or strips, which are divided into furnace-welded pipes, electric-welded (resistance-welded) pipes, and automatic arc-welded pipes due to their different welding processes. There are two types of welded pipe: straight seam welded pipe and spiral welded pipe. Because of its end shape, it is divided into round welded pipes and special-shaped (square, flat, etc.) welded pipes. The production process of small-diameter welded pipe is simple, high production efficiency, low cost and rapid development. The strength of spiral welded pipes is generally higher than that of straight seam welded pipes. Welded pipes with larger diameters can be produced from narrower billets. Welded pipes with different diameters can also be produced with billets of the same width. However, compared with the straight seam pipe of the same length, the weld seam length is increased by 30 to 100%, and the production speed is lower. Therefore, the smaller-diameter welded pipes are mostly straight seam welded, and the large-diameter welded pipes are mostly spiral welded. Post time: Mar-09-2021

Prev : What Standards Referred to Carbon Steel Plates
Next : API 5L GR.BASTM A53 GR.B, LSAW Carbon Steel Pipe
Tags : stainless steel pipe , coated steel pipe , tubing pipe

News

Latest news list

How to Reduce Casing Damage During Cementing Operations

Casing damage during cementing can complicate well construction,delay subsequent operations and raise concerns about well integrity,Although cementing helps support the casing string and isolate formations,the operation involves mechanical loads,fluid pressure and coordination between drilling and cementing teams,
How Is Oil Casing Manufactured? A Guide to Production and Quality Control

Oil casing is a critical component of an oil or gas well,Installed inside the wellbore,it supports the well structure and provides a barrier that can be cemented in place to isolate formations,Its performance depends on material properties,dimensional accuracy,connection integrity and compliance with the applicable product specification,For drilling contractors,project engineers and procurement teams,understanding the oil casing manufacturing process helps clarify which production stages and inspection records matter when evaluating a supplier,
How to Inspect Hollow Sections After Installation and During Maintenance

Steel hollow sections are widely used in buildings,industrial facilities,canopies and other structural applications,Once installed,their condition can change due to weather exposure,coating damage,impact,water accumulation or changes in service conditions,
Hollow Section Supply for Overseas Construction Projects

International hollow section orders involve more than supplying square or rectangular steel tubes,For overseas construction projects,buyers also need to consider specification compliance,supply coordination,inspection,export documentation,packing and delivery schedules,
How to Extend the Service Life of Hollow Section Steel Structures

The service life of square and rectangular hollow section steel structures depends on more than the original steel grade,Environmental exposure,corrosion protection,fabrication quality,loading conditions,and maintenance all influence long-term performance,For building owners,project engineers and maintenance teams,extending service life starts with understanding how these factors interact,Addressing deterioration early can help reduce repair costs,avoid unnecessary downtime and maintain the intended performance of the structure,