Steel pipes are widely used in construction, oil and gas transportation, heating systems, machinery manufacturing, and other fields. Different types of steel pipes are suitable for different applications, such as seamless steel pipes, welded steel pipes, and more.
Yes, we have implemented more than 50 international standards, the more commonly used standards are API 5L, API 5CT, ASTM A53, ASTM A106, EN 10217, EN10219 and so on. If you have detailed standards or technical requirements, welcome to contact us, and we will conduct an in-depth discussion on your requirements.
Yes, the quality and performance of the steel pipe depends on the standard and steel grade you need. If you can provide the required standard and steel grade, we will immediately provide you with information on the quality requirements, chemical properties, physical properties and tolerance range of steel pipes under the standard.
UNIASEN’s steel pipe products are all produced with high-quality carbon steel raw materials. We will purchase from China’s top raw material suppliers according to your standards and steel grade requirements, such as Baogang, Shougang, HBIS, etc.
We supply a wide range of steel pipe specifications and sizes, from 10.3mm (1/8″) ~ 1219.2mm (48″) are within our regular supply range.
UNIASEN can provide seamless and welded steel pipes, of course, the process of welded steel pipes also includes ERW, SSAW, LSAW. The manufacturing process of different steel pipes can be found in the product details page.
Generally, steel pipes need anti-corrosion treatment, but there are a wide variety of anti-corrosion coatings. If the steel pipe needs temporary anti-rust, we recommend the use of paint, which can avoid corrosion on the surface of the steel pipe during transportation. In addition, we can also provide Hot-dip Galvanizing (HDG), Fusion Bond Epoxy (FBE), Polyethylene and other coatings.
The standards of steel pipes are mainly different according to the formulation of different countries and regions, as well as the use, material, manufacturing process and other factors of steel pipes. Common international standards organizations: ASTM (American Society for Testing and Materials), DIN (German Industrial Standards), ISO (International Organization for Standardization). The following are national standard organizations: GB (National Standard, China), JIS (Japanese Industrial Standard), BS (British Standard).
UNIASEN has accumulated more than 20 years of steel pipe export experience, so we can provide customers with a variety of payment options. Such as T/T, L/C, OA and so on. You can provide us with your company’s basic information, and after the bank’s review, we will provide you with the most convenient and affordable payment method.
We usually have 20,000 tons of steel pipes in stock in our warehouse, so we have the ability to deliver the stocked products to the port of shipment within 7 days. Don’t worry if the product you need is not in stock, our factory has an annual production capacity of up to 500,000 tons, and usually the product you need will be produced within 30 days.
There are many factors that affect the price of steel pipes, such as production standards, steel grades, specifications, coating methods, and so on. UNIASEN has more than 20 years of experience in the steel pipe industry to ensure that you can buy high-quality steel pipes at reasonable prices.
UNIASEN has accumulated more than 20 years of steel pipe export experience, so we are very familiar with international transportation and customs clearance. When the steel pipe is shipped to the port, we have a professional team responsible for customs declaration, packaging and inspection. When the cargo ship is shipped, we will track the arrival time of the product in real time and synchronize it with you. If you need local customs clearance, we will provide you with local customs clearance companies and freight companies to ensure that the steel pipes will be delivered to your designated location as soon as possible after customs clearance.
Yes, UNIASEN has a complete service system. If there is a problem with your product, we will usually send our quality experts to your location to analyze the cause of the problem and advise the correct way to deal with it. If the steel pipe is judged to be unqualified, we will discuss together how to deal with the product, such as return or recycling.
Of course, we can customize our steel pipes to your specific needs. At present, the customers we cooperate with have similar needs. We have delivered the size, material and coating they need for customers. Not only that, we also punched holes on the pipe body, and swaged the pipe ends to facilitate subsequent assembly.
Not only have we obtained ISO 14001 Environmental Management System Certification and ISO 45001 Occupational Health Safety Management System Certification, we have also upgraded our production equipment and installed proprietary equipment that is conducive to reducing emissions to ensure compliance with the requirements of environmental protection policies.
Not only have we obtained ISO 14001 Environmental Management System Certification and ISO 45001 Occupational Health Safety Management System Certification, we have also upgraded our production equipment and installed proprietary equipment that is conducive to reducing emissions to ensure compliance with the requirements of environmental protection policies.
UNIASEN has more than 20 years of experience in the field of steel pipes. The company was established in 1998, and its products have been supplied to well-known companies such as Edgen Murray, LG, Samsung, Van Leeuwen, CNPC, SINOPEC, CNOOC, MOGE, etc., which also shows laterally Their approval of our products.
In addition to the price of steel pipes, international transportation, product packaging and other costs also need to be considered. Since the tariffs of each country are different, you need to inform the specific country, and we will assist you to inquire about the specific tariff policy. For customers in RCEP member countries, you can get a certain tariff reduction or exemption when you purchase our steel pipes, and we will also assist you in handling relevant documents.
Minimum order quantity is an inevitable issue for steel pipe products, but we usually have 20,000 tons of steel pipe stock in our warehouse, so there is a good chance that the product you need is in our stock warehouse. If our inventory products cannot meet your needs, we will communicate with you the specific minimum order quantity requirements according to your specific needs, and arrange production and delivery as soon as possible.
A seamless steel pipe is made through continuous rolling and drawing at high temperatures, resulting in smooth inner and outer surfaces. It is suitable for high-pressure, high-temperature, and demanding environments.
Welded steel pipes include longitudinal welded pipes and spiral welded pipes. Longitudinal welded pipes are often used for low-pressure fluid transportation, while spiral welded pipes are suitable for large-diameter transportation and underground projects.
The size standards for steel pipes vary depending on the country and application. Common standards include ASTM, DIN, EN, JIS, covering various size and thickness requirements.
Corrosion protection for steel pipes can be achieved through coating, hot-dip galvanizing, using stainless steel materials, and other methods. The choice of protection method depends on the usage environment and requirements.
Quality control measures include raw material inspection, production process monitoring, dimension and appearance inspection, as well as non-destructive testing when necessary, to ensure that steel pipes comply with standards and customer requirements.
The general production process includes raw material preparation, heating and forming, welding or seamless processing, dimension shaping, heat treatment (if required), inspection, and packaging.
Heat treatment for pipes involves adjusting the pipe’s structure and properties through heating and cooling, to achieve desired mechanical performance, corrosion resistance, and more.
If you have special size, material, or performance requirements, you can contact the steel pipe manufacturer to discuss customized solutions, ensuring the production of steel pipe products that meet your needs.
“SAWL pipe” is the abbreviation of “Submerged Arc Welded Longitudinal Pipe”, which refers to the pipe manufactured by the longitudinal submerged arc welding process (Submerged Arc Welding). SAWL pipes are commonly used to transport liquids and gases such as oil, gas and water. Read more about SAWL pipe meaning.
API 5L ( API 5L gr.b) is a steel pipe standard issued by the American Petroleum Institute (API) for the oil and gas industry. This standard specifies requirements for seamless and welded steel pipe used to transport oil, gas, and other fluids. Read more about API 5L gr.b.
The price of steel pipes is influenced by various factors, including raw material costs, production processes, market supply and demand dynamics, and more. Prices can vary for different types and specifications of steel pipes. You can inquire with suppliers to obtain pricing information.