316 SS tubing, also known as TP316 tubing, is a high-performance austenitic stainless steel grade mainly made up of chromium (16-18%), nickel (11-14%), molybdenum (2-3%), manganese (2%), and traces of other elements.
ASTM A213 Stainless Steel 316 Seamless Tube Manufacturer
We, Zhejiang Xintongda Special Steel (XTD), are a China-based trusted manufacturer of stainless steel 316 seamless tubes. SS 316, also known as TP316, is an austenitic grade stainless steel that contains 16-18% chromium, 11-14% nickel, 2-3% molybdenum, 2% manganese, and other elements in very small amounts. We make our SS 316 tubes according to the ASTM A213, A269, A511, EN 10216-5 standards.
The added molybdenum content in this tube makes it highly resistant to pitting and crevice corrosion in chloride environments. The UNS S31600 tube’s austenitic structure increases its toughness to maintain stability at cryogenic temperatures. It also provides moderate creep strength, stress-to-rupture strength, and tensile strength. This makes the TP316 tube suitable for applications like marine, chemical, and others, where stability and corrosion resistance are crucial.
We at XTD have been serving our customers for 4 decades, and we hold many Multiple international certifications. Our annual supply capacity is 25,000 tons, which helps us meet the rapid industrial needs.
Product specifications of SS 316 seamless tube:
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Standard
ASTM A213
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OD Range
6.35-257 mm
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Thickness
0.89-12.7 mm
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Length
≤ 22 m
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Technical Data
Technical Data
SS 316 Seamless Tube Manufacturing Process
We manufacture our sus 316 tube in accordance with the ASTM A213 standard by heating and piercing the austenitic SS billet to form a hollow shell. After that, we do hot working and cold-drawing/ cold rolling so that the shell gets its desired dimensions. Later, we perform solution annealing to restore the tube’s corrosion resistance and mechanical strength. The last step involves pickling and straightening, after which we send the tube for testing. To find out the whole manufacturing process, kindly check out this page.
Key Features of 316 Stainless Steel Tube
Our Stainless Steel 316 Tubes offer 4 main characteristics: superior corrosion resistance, high temperature resistance, non-magnetic, and good weldability & fabrication.
- Superior Corrosion Resistance: Chromium (16-18%) forms a protective layer of oxide to prevent oxidation, and molybdenum makes this layer more stable and resists pitting and crevice corrosion in chlorides like seawater.
- High temperature resistance: Nickel stabilises the alloy's austenitic phase, which prevents phase change and creep up to 870°C
- Non-Magnetic: SS 316 behaves non-magnetically in its annealed state due to its fully austenitic microstructure.
- Good Weldability & Fabrication: The balanced chemical composition, along with the austenitic structure, makes the SS 316 seamless tube more ductile, weldable, and fabricable.
ASME SA213 TP316 Stainless Steel Tube Equivalent Material
The TP316 seamless tube is known globally by its standard designation as UNS S31600. It is also recognised by EN as DIN 1.4401 and by JIS as SUS316.
| GRADE | UNS | GB | JIS | ISO | DIN/EN | GOST | |
| ISC | NEW | ||||||
| 316 | S31600 | S31608 | 06Cr17Ni12Mo2 | SUS316 | X5CrNiMo17-12-2 | 1.4401 | 08X16H13M2 |
100% Certified Testing & Documentation
- EN 10204 3.1 and EN 10204 3.2 Material Test Certificates (MTC)
- Raw Materials Certificate
- 100% PMI
- Heat Treatment Charts
- Third-Party Inspection Report
- Surface roughness and size measurement
- Manufacturer Test Certificate (Impact Testing, Flattening, Flare, Bend, Hardness, Intergranular, Pitting Corrosion, Grain size, ET, UT, HT)
- Laboratory Test Certificate from the Government-Approved Lab
What Industries typically use 316 Stainless Steel Tubes?
The UNS S31600 finds its application in industries that face harsh chemicals, chlorides, pitting, etc.
Oil & Gas
Used in fluid/gas transport lines, gas plants, storage tanks & pipelines, and thermowells.
Pharmaceutical & Medical
The SS 316 tube finds its use in transportation of sterile fluids, sanitary tubing in bioreactors & fermenters, and the fabrication of surgical instruments.
Chemicals and Petroleum
Generally found in distillation columns, instrumentation, reactors, heat exchangers, and pressure vessels.
Automotive
Used in fuel & hydraulic lines, automotive trim, exhaust systems, suspension components, and turbocharger parts.
Marine Engineering
INOX 316 tube finds its use in exhaust systems of shipbuilding components, handrails of boats, desalination plants, seawater piping, breakwaters, etc.
Frequently Asked Questions
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What is 316 SS tubing?
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What is the typical pressure rating of a 316 stainless steel tube?The typical pressure rating of a 316 stainless steel tube falls around 1,000 to 4,500 psi at normal temperatures. However, the rating changes as per size, schedule and standards.
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What are the standard size ranges available for 316 stainless steel tubes?The standard size ranges available for 316 stainless steel tubes at XTD are:
- OD Range: 6.35-257 mm
- Thickness Range: 0.89-12.7 mm
- Length: up to 22 m