Welded carbon steel pipes for building materials

Electric Resistance Welding Pipe(ERW steel pipe) is hot-rolled coil after forming machine, the use of high-frequency current skin effect and proximity effects, the tube edge heating and melting, squeeze roller under pressure welding to achieve production.
There are significant differences in the welding methods between high frequency welded pipe and submerged arc welded pipe. As the welding is done instantly at high speed, the difficulty of ensuring the quality of welding is much higher than that of submerged arc welding.

Product Description


Straight Seam Welded Steel Pipe

Straight seam welded steel pipes include double-sided submerged arc welded straight seam welded steel pipes and high-frequency resistance welded steel pipes. The English abbreviation is lsaw, and the English abbreviation for high-frequency resistance welded steel pipes is erw. Submerged arc welded straight seam steel pipes are divided into UOE according to their different forming methods. , RBE, JCOE steel pipe, etc. The materials of straight seam welded steel pipe mainly include pipeline steel series such as Q195, Q215, Q345 and x42. There are two types of straight seam welded steel pipes: ordinary steel pipes and thickened steel pipes according to the specified wall thickness. The length of straight seam welded steel pipe is mainly divided into fixed length and indefinite length, which are mainly based on customer requirements. The length is generally 6-14 meters. Large diameter straight seam welded steel pipe may need two steel plates for rolling, which also forms a double welds.


Specification
Steel Pipe TypeStraight Seam Welded Steel Pipe
Outside Dia(mm)10.3-1219mm
Wall Thickness(mm)1.5-30mm
LengthRandom length:5-12m
StandardAPI5L , ASTM A106 Gr.B, ASTM A53 Gr.B,
ASTMA179/A192/A213/A210/370WP91,WP11,WP22 GB5310-2009,GB3087-2008,GB6479-2013,GB9948-2013,
GB/T8163-2008, GB8162-2008,GB/T17396-2009
Material20#, A53B, A106B, API 5L
ST37.0,ST35.8,St37.2,St35.4/8,St42,St45,St52,St52.4
STP G38,STP G42,STPT42,STB42,STS42,STPT49,STS49
SurfaceBlack painting, varnish paint, anti rust oil, hot galvanized, cold galvanized, 3PE,ect
PackagingLoose package, Packaged in bundles(3Ton Max) , bundled pipes with two slings at the both end for easy loading and discharging, End
with Plastic caps or as per requirement
ApplicationAPI5L ISO 9001:2008 TUV SGS BV etc


Product Show


Package

Certificate

FAQ

Q1:What product information must I provide before making a purchase? 

Please provide the grade, width, thickness, and surfacetreatment requirements, as well as the quantities you require. 

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Q2:What shipping ports are there? 
We normally ship from Shanghai,Tianjin, Qingdao, and Ningbo ports 

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Q3:What are your payment terms? 
30% T/T in advance and 70% balance before shipment or based onBL copy or LC at sight.

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Q4:What about product pricing information? 
Prices vary due to changes in raw material prices on a regular basis. 

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Q5:Is it possible to send samples?
Of course, we offer free samples and express shipping to customers all over the world. 

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