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At New Eagle Industrial Corporation, we specialize in supplying high-quality ASTM A269 TP317 and TP317L instrumentation tubes designed for precision applications across various industries. Our tubing is manufactured using advanced seamless and welded processes, ensuring superior dimensional accuracy, corrosion resistance, and long-term durability.
Our TP317 / TP317L instrumentation tubes feature exceptional resistance to pitting and crevice corrosion, thanks to their high molybdenum content, making them perfect for aggressive chemical and chloride-rich environments. Available in multiple sizes, wall thicknesses, and finishes—including bright annealed and polished options—these tubes meet ASTM A269 standards and can be customized for specialized applications.
We combine quality, reliability, and customer-centric solutions to serve engineers, contractors, and industrial buyers worldwide. Our commitment to excellence ensures that every ASTM A269 TP317/TP317L tube is supplied with complete documentation, including mill test certificates and dimensional reports. We provide flexible sizing, quick delivery, and expert technical guidance, making us a trusted partner for industries that demand precision and superior stainless steel performance.
TP317 Stainless Steel Instrumentation Tubes – Technical Specifications
SS A269 TP317L Instrumentation Tubes – Chemical Composition
TP317L is the low-carbon variant of TP317, minimizing sensitization during welding while retaining excellent corrosion resistance.
| Element | TP317 | TP317L |
|---|---|---|
| Carbon (C) | 0.08 max | 0.03 max |
| Manganese (Mn) | 2.0 max | 2.0 max |
| Phosphorus (P) | 0.045 max | 0.045 max |
| Sulfur (S) | 0.03 max | 0.03 max |
| Silicon (Si) | 1.0 max | 1.0 max |
| Chromium (Cr) | 18–20 | 18–20 |
| Nickel (Ni) | 11–14 | 11–14 |
| Molybdenum (Mo) | 3.0–4.0 | 3.0–4.0 |
| Iron (Fe) | Balance | Balance |
Stainless Steel 317 Instrumentation Tubing – Mechanical Properties
TP317L’s lower carbon content ensures better weldability and reduces the risk of carbide precipitation while maintaining comparable mechanical properties to TP317.| Property | TP317 | TP317L |
|---|---|---|
| Tensile Strength | 515 MPa min | 515 MPa min |
| Yield Strength (0.2% offset) | 205 MPa min | 205 MPa min |
| Elongation (% in 50 mm) | 40% min | 40% min |
| Hardness (HRB) | 79 max | 79 max |
| Impact Strength | Good at room temperature | Good at room temperature |
TP317 SS Instrumentation Tubes – Equivalent Grades
317/317L stainless steel instrumentation tubes conform to multiple international standards, ensuring compatibility across global industrial applications.
| Standard | Specification / Designation | Grade / Material No. |
|---|---|---|
| ASTM / ASME | ASTM A269 / SA269 | TP317 / TP317L / UNS S31700 / UNS S31703 |
| EN | EN 10088-2 / EN 10216-5 | X6CrNiMo17-12-3 / 1.4438 / 1.4439 |
| DIN | DIN 17456 / DIN 17458 | 1.4438 / 1.4439 |
| JIS (Japan) | JIS G3459 / JIS G4303 | SUS 317 / SUS 317L |
| BS (United Kingdom) | BS 3605 / BS 970 | 317S31 / 317S31L |
| ISO | ISO 15510 | X6CrNiMo17-12-3 |
| AFNOR (France) | NF A35-572 | Z6CND17-13-03 |
| GOST (Russia) | GOST 5632 | 08Х17Н13М3 |
What are the key differences between TP317 and TP317L?
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Carbon Content: TP317L has a lower carbon content (max 0.03%) compared to TP317 (max 0.08%).
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Weldability: The lower carbon in TP317L reduces the risk of carbide precipitation during welding.
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Corrosion Resistance: Both grades have similar corrosion resistance in chemical and industrial environments.
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Mechanical Strength: Mechanical properties like tensile strength and yield strength are comparable for both grades.
What are the common applications of TP317/317L instrumentation tubes?
Chemical Plants: For corrosive chemical processing lines.
Instrumentation Systems: Precision piping and control lines.
Heat Exchangers & Condensers: For high-temperature fluid handling.
Other Industrial Applications: Any system requiring corrosion-resistant stainless steel tubing.
Are TP317/317L tubes available in seamless and welded forms?
Seamless Tubes: Preferred for high-pressure applications due to uniform wall thickness and higher structural integrity.
Welded Tubes: Cost-effective option for standard-pressure applications.
Selection Tip: Choose seamless for critical systems and welded for less demanding environments.
Global Export Network for TP317/317L instrumentation Tubing
As a trusted manufacturer and exporter, New Eagle Steel supplies ASTM A269 TP317/317L Instrumentation Tubes globally. Our high-performance products are widely used in chemical processing, pollution control, marine, and pharmaceutical industries across Europe, the Middle East, Asia, and the Americas, ensuring exceptional corrosion resistance, reliability, and precision engineering.
- Middle East: United Arab Emirates (UAE), Saudi Arabia, Qatar, Kuwait, Oman, Bahrain, Yemen, Iran, Iraq, Israel, Jordan, Lebanon, Syria, Turkey
- North Africa: Egypt, Algeria, Morocco, Tunisia, Libya
- Asia Pacific: Singapore, Malaysia, Vietnam, Indonesia, Thailand, Philippines, Cambodia, Laos, Myanmar, Brunei, Timor-Leste, Taiwan, Japan, South Korea
- Europe: Spain, Belgium, Netherlands, France, Germany, Italy, United Kingdom (England), Poland, Cyprus, Malta, Russia
- Americas: Brazil, Mexico, Chile, Peru, Colombia, Argentina, United States (USA), Canada
- India: Chennai, Coimbatore, Bangalore, Thiruvananthapuram, Pune, Kolkata, Kerala, Karnataka, Gujarat, Mumbai, Delhi
High-Performance Applications of SS TP317 / 317L Instrumentation Tubes
Oil & Gas Industry
Petrochemical & Chemical Processing
Power Generation (Thermal, Nuclear & Renewable)
Marine & Offshore Engineering
Pharmaceuticals & Biotechnology
Food, Beverage & Dairy Processing
Pulp & Paper Industry
Aerospace & Defense
Automotive & Transportation
Instrumentation & Control Systems
Water Treatment & Desalination
HVAC & Heat Exchanger Systems
Construction & Infrastructure Projects
Mining & Metallurgy
