Product Description
Welded steel pipe Q235B precision thick wall hollow engineering construction welding rack tube size custom factory direct supply
Welded steel pipes refer to steel pipes with seams on the surface that are welded by steel strips or steel plates that are bent and deformed into round or square shapes. The blanks used for welded steel pipes are steel plates or strip steels.
Classification of welding methods
Spiral welded steel pipe
Spiral welded steel pipe
According to different welding methods, it can be divided into arc welded pipe, high frequency or low frequency resistance welded pipe, gas welded pipe, furnace welded pipe, Bondi pipe, etc.
Electric welded steel pipe: used in oil drilling and machinery manufacturing, etc.
Furnace welded pipes: can be used as water gas pipes, etc., large-diameter longitudinally welded pipes are used for high-pressure oil and gas transportation, etc.; spiral welded pipes are used for oil and gas transportation, pipe piles, bridge piers, etc.
Classified by weld shape
Can be divided into straight seam welded pipe and spiral welded pipe
Detailed Photos
Product Parameters
| Chemical Requirements |
| |
Composition, % |
| Grade A |
Grade B |
Grade C |
| Carbon, maxA |
0.25 |
0.3 |
0.35 |
| Manganese |
0.27-0.93 |
0.29-1.06 |
0.29-1.06 |
| Phosphorus, max |
0.035 |
0.035 |
0.035 |
| Sulfer, max |
0.035 |
0.035 |
0.035 |
| Silicon, min |
0.1 |
0.1 |
0.1 |
| Chrome, maxB |
0.4 |
0.4 |
0.4 |
| Copper, maxB |
0.4 |
0.4 |
0.4 |
| Molybdenum, maxB |
0.15 |
0.15 |
0.15 |
| Nickel, maxB |
0.4 |
0.4 |
0.4 |
| Vanadium, maxB |
0.08 |
0.08 |
0.08 |
Packaging & Shipping
Certifications
Company Profile
Shandong Xinchengyuan Import and Export Co., Ltd is a professional steel company engaged in the research, development, production, sale and service. It had five branch companies .Our annual sales nearly one billion, about 280,000 tons steel, It is located in Jinan with the convenient transportation access. In line with the development concept of quality conquer the world, service achievement future.
We dedicate to strict quality control and thoughtful customer service, and our experienced staff members are always available to discuss your requirements and ensure every customer satisfaction. Our main products include PPGI ,galvanized steel , steel plate , round bar, steel pipe ,Stainless steel product ,angle bar, steel pile ,H beam ,I beam, angle, Channel flat steel etc . With double guarantee of service and management system. Main market distributes in North America, South America, Africa, Southeast Asia as well as Oceania.
Xinchengyuan responds positively to the national one belt and one road strategy, and arranged overseas layout in advance to service the countries and customers alongside the route better and higher efficiency. Up to now, we have established long-term and win-win partnership with many large steel manufacturers, such as Baosteel, Laiwu Steel, Rizhao Steel, Handan Iron and Steel, Angang and Maanshan Iron and Steel. We always foucesed on the intergration of reasources , in line with the concept of win win cooperation . Sincerely wish to build a long and regular business with you forever.
Contact Us
Please contact us
Ivy Zhang
Audited Supplier 
Audited Supplier 
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