Basic knowledge of welded steel tube

- Feb 20, 2019-

Basic concept: welded steel pipe is additionally referred to as welded pipe, that is created of plate or steel strip once crimped forming.Welding steel pipe production method is easy, high production potency, selection specifications, less instrumentality, however typically but the strength of seamless steel pipe.Since the Nineteen Thirties, with the fast development of high-quality strip steel continuous rolling production and therefore the progress of fastening and review technology, the standard of fastening seams has been ceaselessly improved, and therefore the varieties and specifications of welded steel tubes are more and more exaggerated, and seamless steel tubes are replaced in additional and more fields.


Welded steel pipe may be divided into straight welded pipe and spiral welded pipe in keeping with the shape of fastening seam.Straight welded pipe production method is easy, high production potency, low cost, fast development.The strength of spiral welded pipe is usually beyond that of straight welded pipe. The welded pipe with larger diameter may be made with narrower billet, and therefore the welded pipe with totally different diameter may be made with identical breadth billet.However, compared with straight pipe of identical length, the weld length will increase by 30-100%, and therefore the production speed is lower.


Therefore, the smaller caliber welded pipe largely USES straight seam fastening, massive diameter welded pipe largely USES spiral fastening.1. Welded steel pipe (GB/ t3092-1993) for unaggressive  fluid transportation is additionally referred to as general welded pipe, usually called black pipe.It is used for transference water, gas, air, oil, steam and alternative general lower pressure fluid and other functions of fastening steel pipe.Steel pipe wall thickness is split into standard steel pipe and thickened steel pipe;The pipe finish is divided into unreamed steel pipe (smooth pipe) and steel pipe with rebar.The specification of steel pipe is expressed by nominal caliber (mm), that is that the approximate price of inner diameter.It's customary to use inches for things like 11/2.The welded steel tube for air mass fluid transportation isn't solely used directly for fluid transportation, however conjointly used because the original pipe of galvanized welded steel tube for air mass fluid transportation.2. Galvanized welded steel pipe (GB/ t3091-1993) for air mass fluid transportation is additionally referred to as galvanized electrical welded steel pipe, usually called white pipe.It is used for transference water, gas, air oil, heating steam, heat water and alternative general lower pressure fluid or other USES of hot dip galvanized fastening (furnace welding or electrical welding) steel pipe.Steel pipe wall thickness is split into standard galvanized steel pipe and thickened galvanized steel pipe;The pipe finish is divided into galvanized steel pipe while not thread and galvanized steel pipe with thread.The specification of steel pipe is expressed by nominal caliber (mm), that is that the approximate price of inner diameter.It's customary to use inches for things like 11/2.3. Common steel wire sleeve (gb3640-88) could be a steel tube wont to defend electrical wires in industrial and civil buildings, installation machinery and instrumentality and alternative electrical installation comes.4. Straight seam electrical welded steel tube (yb242-63) could be a steel tube with longitudinal parallel fastening seam and steel tube.It is typically divided into metric welded steel pipe, welded skinny wall pipe, electrical device cooling pipe then on.5. Spiral welded arc-welded steel tube (sy5036-83) for confined fluid transference could be a reasonably spiral welded steel tube with hot rolled steel strip as tube blank, that is commonly formed by temperature spiral and welded by double-sided submerged arc fastening methodology for confined fluid transference.


The steel pipe has robust bearing capability and sensible fastening performance. it's passed every kind of strict scientific review and testing and is safe and reliable to use.Large diameter steel pipe, high transference potency, and might save the investment in giving birth pipeline.Mainly wont to transport oil and fossil fuel pipelines.6. Spiral high frequency welded steel tube (sy5038-83) for confined fluid transference could be a spiral high frequency welded steel tube for confined fluid conveying, that is created of hot rolled steel strip and is commonly formed by temperature spiral and welded by high frequency lap fastening methodology.The steel pipe has robust bearing capability and sensible physical property, that is convenient for fastening and process.After a spread of strict and scientific review and testing, the utilization of safe and reliable, massive diameter steel pipe, high transmission potency, and might save the investment in giving birth pipelines.It is principally used for giving birth pipelines for transporting oil and fossil fuel.


7. the final unaggressive  fluid transference mistreatment spiral seam arc-welded steel tube (sy5037-83) could be a reasonably pipe billet manufactured from hot-rolled steel strip, that is commonly formed with heat spirals and created by double-sided automatic submerged arc fastening or single-side welding methodology. it's used for the final unaggressive  fluid transference like water, gas, air and steam.8. For general unaggressive  fluid transportation, spirally welded high-frequency steel tubes (sy5039-83) are manufactured from hot-rolled steel strip as tube billet, that is commonly formed by temperature spiral. High frequency lap fastening methodology is adopted for welding spirally welded high-frequency steel tubes for general unaggressive  fluid transportation.9.Spiral welded steel pipe for pile (sy5040-83) is created of hot rolled steel strip as pipe billet, that is commonly formed by temperature spiral and welded by double-sided submerged arc fastening or high-frequency welding.


Cangzhou Steel Pipe Group (CSPG)Co.,Ltd.

No.92 JieFang East Road ,Cangzhou City, Hebei,P.R.China.

 CSPG  has more than eighteen years history company which located in Lecong Iron and Steel World, a well-known steel distribution center in China, with superior geographical position and convenient water and land transportation. 


We are a direct-selling manufacturer specializing in the research and development of spiral steel pipes, steel spiral pipes, anti-corrosion steel pipes inside and outside. Since its inception, the company has been guided by a brand-new thinking of steel pipe product market based on the business philosophy of honesty, pragmatism and knowledge-seeking.

 

Product Description
Product Name
High quantity building material supplier fbe anticorrosion steel pipe
Usage
Low pressure liquid delivery, such as water, gas, and oil, Offshore Piling Pipe / Port Construction Pipe, Structure Pipe
Standard
API 5L, API 5CT, ASTM A252, ASTM 53, EN10217, EN10219, BS 5950, ASTM A572 , JIS, IS,
Certificate
EN10217, EN10219, API 5L PSL1/ PSL2, API 5CT
Test
Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Properties (Flattening Test, Bending Test, Blow Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, X-ray Test.
Products Show
Our Company

Cangzhou Steel Pipe Group (CSPG)Co.,Ltd.

No.92 JieFang East Road ,Cangzhou City, Hebei,P.R.China.

With the sense of responsibility, customer-centered, market-oriented, service-oriented, spot supply as the main body, good reputation, excellent business quality, integrity, conscientious work, perception of society and the spirit of Bianjin, we are committed to creating a win-win, easy and convenient large-scale integrated steel procurement for customers Platform.

The company upholds the enterprise tenet of integrity-based and customer-oriented, constantly strengthens internal management and builds an elite team, and will: all for users throughout the whole process of economic management, for this purpose, to provide customers with high-quality products and excellent services.


Packing & Delivery
FAQ

Q: Are you trading company or manufacturer ?

A: We are factory.

Q: How long is your delivery time?

A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.

Q: Do you provide samples ? is it free or extra ?

A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q: What is your terms of payment ?

A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.
If you have another question, pls feel free to contact us as below: