Seamless Pipes and Tubes

Stainless Steel Pipes

Seamless Pipes and Tubes

Reliable Pipes and Tubes Ltd. is a leading enterprise in the stainless steel industry, specializing in the manufacturing, exporting, and trading of high-quality stainless steel pipes. With a strong commitment to engineering excellence and stringent quality control, the company offers a comprehensive range of pipes catering to diverse industrial applications, including petrochemicals, pharmaceuticals, oil and gas, and construction. Reliable Pipes and Tubes Ltd. leverages its robust global network and technical expertise to serve both domestic and international markets, positioning itself as a trusted and reliable supplier known for delivering superior products and exceptional customer service.

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What Is a Stainless Steel Seamless Tube?

A stainless steel seamless tube is a high-strength, corrosion-resistant tubular product manufactured without any welded joints. It is produced by piercing a solid stainless steel billet, followed by elongation and extrusion to achieve the desired size and thickness. This seamless construction eliminates weak points, providing superior durability and uniform structure, making it ideal for high-pressure and high-temperature applications. These tubes offer excellent resistance to rust, oxidation, and extreme temperatures, ensuring long-lasting performance in demanding industries such as aerospace, chemical processing, and oil & gas.


Why Choose Seamless Stainless Steel Tube?

Seamless stainless steel tubes provide significant advantages over welded alternatives. Unlike welded tubes, which have seams that can be weak points under pressure, seamless tubes offer better structural integrity and higher mechanical strength. They are designed to withstand extreme pressure and temperature variations, making them ideal for critical industrial applications. Additionally, seamless tubes offer superior corrosion and heat resistance, ensuring longevity in aggressive environments like marine and chemical processing industries. While they may have a higher initial cost, their low maintenance and extended lifespan make them a cost-effective solution in the long run.


Applications of Seamless stainless steel tubes

Seamless stainless steel tubes are widely used across multiple industries due to their strength, reliability, and corrosion resistance. Some common applications include:

  • Oil & Gas Industry
  • Chemical & Petrochemical Plants
  • Aerospace & Automotive
  • Food & Beverage Industry
  • Power Plants & Boilers
  • Medical & Pharmaceutical


Specifications of Seamless Steel Pipes

OD 6.00mm to 168.3mm
Thickness 0.40mm to 25.0 mm
Length Up to 30 Meters

Grades of Seamless Steel Tube

Common Grades & Their Benefits:

  • SS 304: Excellent corrosion resistance and cost-effective for general applications.
  • SS 316: Enhanced resistance to acids and chlorides, ideal for marine and chemical environments.
  • SS 321: Superior high-temperature performance, suitable for heat exchanger systems.
  • SS 347: Enhanced stability and resistance to intergranular corrosion in high-stress environments.

Reliable Pipes and Tubes supply this tubes in different sizes, thicknesses, and finishes, these tubes meet international quality and safety standards to ensure reliability in critical applications.


Stainless Steel Seamless Pipe Chemical Composition

Grade UNS # Content % by weight
Carbon Manganese Phosphorus Sulfur Silicon Chromium Nickel Molybdenum
TP304 S30400 0.08 2.00 0.045 0.030 1.00 18 – 20 8 – 11 x
TP304L S30403 0.035 2.00 0.045 0.030 1.00 18 – 20 8 – 13 x
TP316 S31600 0.08 2.00 0.045 0.030 1.00 16 – 18 10 – 14 2 – 3
TP316L S31603 0.035 2.00 0.045 0.030 1.00 16 – 18 10 – 14 2 – 3

Stainless Steel Seamless Pipe Mechanical Properties

Material Heat Temperure Tensile Strength Yield Strength Elongation %, Min
Treatment Min. Ksi (MPa), Min. Ksi (MPa), Min.
  º F(º C)    
TP304 Solution 1900 (1040) 75(515) 30(205) 35
TP304L Solution 1900 (1040) 70(485) 25(170) 35
TP316 Solution 1900(1040) 75(515) 30(205) 35
TP316L Solution 1900(1040) 70(485) 25(170) 35