Seamless Stainless Steel TP316 Pipe

Seamless Stainless Steel TP316 Pipes (UNS S31600 / W.Nr. 1.4401) are premium-grade austenitic solutions engineered for exceptional mechanical strength and superior corrosion resistance in chloride-rich environments. As a premier manufacturer based in Wenzhou, China, XinZhe produces high-integrity seamless piping that strictly adheres to ASTM A312, ASTM A213, and ASME SA312 international standards.

Distinguished by its strategic Molybdenum content (2.0–3.0%) and high Nickel/Chromium ratio, our TP316 tubing provides significantly enhanced resistance to pitting and crevice corrosion compared to standard 304 grades. These pipes are indispensable for mission-critical applications in offshore oil & gas, chemical reactors, and pharmaceutical processing. Through advanced cold-drawing and precise solution annealing, XinZhe ensures every pipe maintains a stable austenitic microstructure and optimized durability for the most demanding global industrial needs.

“For applications involving extensive welding, we also provide TP316L (UNS S31603) with lower carbon content to prevent sensitization and maintain intergranular corrosion resistance.”

What is a Seamless Stainless Steel TP316 Pipe?

Seamless Stainless Steel TP316 Pipe (UNS S31600 / EN 1.4401) is a high-performance austenitic stainless steel pipe manufactured from a solid billet without any weld seams. This seamless structure eliminates weld defects, ensuring superior mechanical strength, pressure resistance, and long-term reliability.

Compared to TP304, TP316 contains 2–3% Molybdenum (Mo), significantly improving resistance to pitting corrosion, crevice corrosion, and chloride attack. It is widely recognized as the preferred material for marine, chemical processing, pharmaceutical, and high-purity industries.

Key Advantages of TP316 Stainless Steel Seamless Pipe

Excellent Chloride Corrosion Resistance
Ideal for seawater, coastal, and high-salinity environments.
Seamless Structure for Maximum Integrity
No weld seams = higher pressure tolerance and improved safety.
Superior High-Temperature Performance
Enhanced creep resistance and tensile strength compared to 304/304L.
Full Traceability & Certification
Each pipe is marked with heat number and supplied with EN 10204 3.1 MTC.
Hygienic & Smooth Surface Finish
Non-porous and easy to clean, perfect for food, beverage, and medical systems.

Product Specifications and Data

To provide a comprehensive overview of this versatile material, here are the detailed technical specifications and performance data for 316 stainless steel.

The composition of Stainless Steel 316 is carefully balanced to achieve its superior corrosion resistance and high strength.

Stainless Steel 316 is specifically designed to maintain its strength and shape in high-stress, corrosive environments.

These physical properties highlight the material’s ability to perform reliably under a wide range of conditions.

Main Applications of TP316 Seamless Stainless Steel Pipe

Offshore & Marine Engineering

Seawater pipelines, offshore platforms, desalination systems

Chemical & Petrochemical Industry

Acid, alkali, and chloride handling pipelines

Pharmaceutical & Biotechnology

Sterile and high-purity fluid systems

Energy & Power Plants

Heat exchangers, condensers, boiler tubing

Quality Assurance & Inspection

To guarantee premium quality, all TP316 seamless pipes undergo strict inspection procedures:

Material Certification
EN 10204 3.1 / 3.2 Mill Test Certificate (MTC)
Nondestructive Testing (NDT)
Ultrasonic Testing (UT), Eddy Current Testing (ET), Hydrostatic Testing
Positive Material Identification (PMI)
100% chemical verification before shipment
Mechanical & Corrosion Testing
Flattening, flaring, bending, and intergranular corrosion (IGC) tests
Third-Party Inspection Available
SGS, BV, TÜV, Lloyd’s Register (LR)