Product Details

Manufacturers of seamless stainless steel tubes offer a wide range of high-quality products. These tubes, made from stainless steel, are known for their durability and corrosion resistance. With options like 316 seamless tubing and 304 SS seamless tubing, customers can find the perfect tube to suit their needs.
Seamless stainless steel tubes are designed for various applications and industries. They are commonly used in the manufacturing and construction sectors, as well as in the oil and gas industry. The seamless round tubes are popular due to their smooth surface and seamless construction.
These tubes adhere to specific SS seamless tube specifications such as ASTM A269 TP304 tube and ASME Sa213 TP316 tubes. These specifications ensure that the tubes meet the required standards and possess the necessary mechanical properties.
One important consideration when selecting stainless steel tubes is the wall thickness. Depending on the application, different wall thicknesses may be required. ASTM A269 tubing offers a range of wall thickness options to meet varying needs.
Pricing is another factor to consider when purchasing stainless steel tubes. The price of stainless steel 316 tube may vary depending on factors such as size, quantity, and market conditions. Customers are advised to contact manufacturers or suppliers for accurate pricing information.
In conclusion, stainless steel seamless tubes are sought after for their durability, corrosion resistance, and smooth finish. Various specifications and options are available to cater to different applications and requirements. Customers should consider factors like wall thickness and pricing when selecting the right seamless stainless steel tube for their needs.

 

Seamless stainless steel tubes are manufactured from a solid round steel bar, and do not have any welds or joints on their outer surface. Depending upon the specific production process, seamless steel tubes can be categorized as hot-rolled, cold-rolled, cold-drawn, extruded, or pipe jacking tubes. These tubes further come in various shapes, including round, as well as special shapes such as square, oval, triangular, hexagonal, and even finned tubes. Additionally, the thickness of the walls can also vary from thick to thin, depending on the intended use. Customization of size is also possible to cater to specific needs.

 

Stainless steel seamless tube material standard：

 

• The ASTM A213 specification outlines the requirements for seamless tubes made from alloy steel for use in boilers, superheaters, and heat-exchangers. The tubes are designed to withstand high temperatures and pressure, making them ideal for use in harsh industrial applications. The specification covers both ferritic and austenitic alloys, ensuring that the tubes provide excellent resistance to corrosion, oxidation, and other forms of degradation. Overall, the ASTM A213 standard sets the bar for high-quality, durable, and reliable tubing in extreme environments.

 

• The ASTM A269 is a commonly used standard specification for seamless and welded austenitic stainless steel tubing that is suitable for general service. Its purpose is to specify the requirements for the manufacture of tubing that can be used in a wide range of applications. This standard is based on detailed testing and evaluation of the physical and mechanical properties of the materials used in the manufacture of the tubing to ensure that it will perform well over an extended period of time. It is an essential tool for ensuring that the tubing provides the expected level of durability, reliability, and performance required for its intended use.

 

• ASTM B677 is a standard specification that outlines the requirements for seamless pipes and tubes made from three specific alloys: UNS N08904, UNS N08925, and UNS N08926. This specification ensures the quality and performance of these materials in various applications.
  The seamless pipes and tubes covered by this standard are designed to withstand high temperatures, corrosive environments, and pressure. They are commonly used in industries such as chemical processing, oil and gas, desalination, and marine applications.
  UNS N08904, also known as 904L stainless steel, exhibits excellent resistance to corrosion, particularly in sulfuric, acetic, and phosphoric acid environments. This alloy is highly versatile and finds its utility in various industries where strong corrosion resistance is essential.
  UNS N08925, also referred to as Alloy 925, is a high-strength alloy with excellent resistance to both oxidizing and reducing acids. It offers enhanced resistance to chloride-induced stress corrosion cracking and is commonly used in applications involving severe corrosive conditions.
  UNS N08926, commonly known as Alloy 926, is a highly corrosion-resistant alloy that offers superior resistance to pitting and crevice corrosion in aggressive environments. It is particularly suited for applications involving organic acids, such as sulfuric and phosphoric acids, as well as chloride-containing media.
  The seamless pipes and tubes manufactured in accordance with ASTM B677 undergo stringent quality control measures to ensure they meet the specified requirements. These include dimensions, mechanical properties, chemical composition, and testing for defects.
  By adhering to ASTM B677, manufacturers and end-users can have confidence in the quality and performance of the seamless pipes and tubes made from UNS N08904, UNS N08925, and UNS N08926 alloys. This standard helps to ensure the reliability and long-term durability of these materials in challenging operating conditions.

 

Stainless Steel Seamless Tube Specifications

 

At HT PIPE, we pride ourselves on providing our customers with seamless stainless steel tubes that meet the highest material standards, including ASTM A213/ASME SA213, ASTM A269/ASME SA269, and ASTM B677/ASME SB677. We offer a wide range of grades, including TP304, TP304L, TP316, TP316L, 316Ti, TP317, TP317L, TP321, TP310S, TP347, S31254, N08367, N08926, and N08904, so you can find the perfect fit for your needs.
Our commitment to quality and affordability means that you can trust us to provide you with the best products at the most competitive prices. Whether you need a specific size or material, we can help you find the perfect solution. So why wait? Contact us today to learn more about our seamless stainless steel tubes and start enjoying the benefits of high-quality, durable materials for your projects. We look forward to working with you!

 

The ASME SA213 TP316 tubes are highly reliable and offer exceptional resistance to corrosion even at high temperatures. In addition to their impressive strength, these tubes are made of stainless steel, which boasts easy cleaning properties and does not tarnish easily. The key components of stainless steel include a minimum of 10.5% chromium, nickel, molybdenum, titanium, carbon, nitrogen, and copper. These added materials enhance the formability, strength, and other characteristics of stainless steel. The corrosion resistance of seamless stainless tubes varies depending on the type of material used. Compared to carbon steel tubing, seamless 316 stainless steel tubing offers superior low-temperature toughness, a higher rate of work hardening, greater strength and hardness, more ductility, and an overall more appealing appearance.

 

304 ss seamless tubing is usually made through a process called cold drawing, in which steel wire is drawn through a die, forming it into tubing. This process creates a tube of consistent thickness and diameter, which makes it strong and durable. Stainless steel seamless tubes come in various sizes and thicknesses. ASTM A269 TP304 tubes are mainly used as petroleum geological drilling tubes, cracking tubes for petrochemicals, boiler tubes, bearing tubes, and high-precision structural steel tubes for automobiles, tractors, and aviation.

 

Chemical Composition of Stainless Steel Seamless Tube

 

Stainless Steel Seamless Tube Mechanical Properties

 

Stainless Steel Seamless Tube Cold Drawing Production Process
Stainless steel seamless tube cold drawing production process: round tube blank heating→piercing→heading→annealing→pickling→oiling→multi-pass cold drawing→billet tube→heat treatment→straightening→hydraulic test→marking→warehousing.

 

The rolling method of cold-drawn seamless steel pipe is more complicated than that of hot rolling, and the steps of their production process are basically the same. After the round tube blank is punched, it needs to be heated and annealed. After annealing, use a special acidic liquid for pickling. After pickling, apply oil. Then followed by multiple passes of cold drawing. Heat treatment to improve the mechanical properties of stainless steel pipes, followed by straightening. After the steel pipe is straightened, it is sent to the metal flaw detector by the conveyor belt for internal flaw detection. If there are cracks inside the steel pipe, the problem of bubbles and the like will also be picked out. The length of cold-drawn seamless pipes is generally shorter than that of hot-rolled seamless pipes. In terms of wall thickness, the cold-drawn seamless pipe is more uniform than the hot-rolled seamless pipe, the precision of the cold-drawn pipe is higher, and the surface roughness is better.

The Difference Between Stainless Steel Seamless Pipe and Stainless Steel Seamless Tube
The seamless pipe is always round, and the diameter of the stainless steel seamless pipe is generally larger than that of the stainless steel seamless tube, the wall of the pipe is thicker, and it can withstand higher internal pressure. Pipelines are commonly used to transport liquids, fluids or gases under pressure and they are commonly used to transport fluids or gases in industrial applications such as oil and gas, chemical processing and power generation. Relatively speaking, the pipe is thicker and more expensive.

 

On the other hand, seamless tubes can be square, rectangular, or round, and stainless steel seamless tubes usually have a smaller diameter and thinner walls than stainless steel seamless pipes. They are usually used to require precise dimensions (the size of the seamless tube is represented by any two of its actual dimensions, namely outer diameter, inner diameter, and wall thickness). Applications with high cleanliness and smooth surfaces, seamless tubes are more used in mechanical applications such as supports, frames and structures, such as medical, pharmaceutical and semiconductor industries. Tubes are thinner and cheaper.

 

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