ASTM A312 TP 317 refers to a specific grade of austenitic stainless steel (UNS S31700 / Werkstoff 1.4449) specified under the ASTM A312 standard for seamless and welded pipes and tubes. This grade is distinguished by its elevated molybdenum, chromium, and nickel content, which significantly enhances its resistance to pitting, crevice corrosion, and chloride environments compared to standard 300-series grades. The pipes and tubes are supplied in annealed and pickled condition per ASTM requirements, and they adhere to strict quality benchmarks for mechanical and chemical properties.
ASTM A312 TP 317 products are available in a broad range of sizes, thicknesses, and schedules, typically from small bore to large diameters, in seamless, ERW, EFW, and fabricated forms. These pipes & tubes are suitable for high temperature and high corrosion environments, making them a versatile choice for demanding industrial applications. As a global supplier and stockist, Metal Tubular Products ensures that these items are readily stocked in standard and custom lengths, with fast delivery options worldwide.
Due to their robust corrosion resistance, ASTM A312 TP 317 Pipes & Tubes are widely used in sectors such as chemical processing, marine/offshore, pharmaceutical production, flue gas desulfurization systems, and pulp & paper plants. The enhanced alloy composition provides a stronger passive film and improved resistance against localized attack, especially in environments with chlorides, acids, and aggressive chemical media.
From a supply chain perspective, reliable stockists maintain a comprehensive inventory of seamless and welded pipe configurations, including special finishes such as polished or electropolished surfaces for critical applications. In addition to standard offerings, many suppliers provide custom fabrication services to meet unique project specifications, ensuring optimal fit and performance in complex industrial systems..
| Standard | ASTM A312 / ASME SA312 |
|---|---|
| Grade | TP 317 |
| Material Type | Austenitic Stainless Steel |
| UNS Number | S31700 |
| Manufacturing Type | Seamless / Welded / ERW / EFW |
| Form | Pipes & Tubes |
| Condition | Annealed & Pickled |
| Test Certificates | EN 10204 3.1 / 3.2 |
Quality assurance is a key differentiator for reputable global suppliers. ASTM A312 TP 317 Pipes & Tubes are typically supplied with material test certificates (MTCs) in compliance with EN 10204 3.1/3.2 standards, and can be subject to third-party inspections on demand. This guarantees traceability, verified mechanical properties, and adherence to international quality standards, reinforcing confidence among engineers and project stakeholders.
With a well-established global distribution network, stockists and suppliers are able to serve customers across Asia, Europe, North America, Middle East, and Africa. Their logistical capabilities ensure that products are delivered efficiently for projects ranging from offshore platforms to high-end processing facilities. Partnerships with regional distributors and local stock points help minimize lead times and support international projects seamlessly..
| Element | Composition (%) |
|---|---|
| Carbon (C) | Max 0.08 |
| Manganese (Mn) | Max 2.00 |
| Phosphorus (P) | Max 0.045 |
| Sulfur (S) | Max 0.030 |
| Silicon (Si) | Max 1.00 |
| Chromium (Cr) | 18.0 – 20.0 |
| Nickel (Ni) | 11.0 – 15.0 |
| Molybdenum (Mo) | 3.0 – 4.0 |
| Property | Value |
|---|---|
| Tensile Strength | Minimum 515 MPa |
| Yield Strength (0.2% Offset) | Minimum 205 MPa |
| Elongation | Minimum 35% |
| Hardness | Max 95 HRB |
| Outside Diameter | Wall Thickness | Length |
|---|---|---|
| 1/8" NB to 36" NB | Schedule 5S to XXS | Single Random, Double Random, Custom Length |
| 6 mm to 914 mm | 0.5 mm to 40 mm | Up to 12 meters |
| Standard | Equivalent Grade |
|---|---|
| UNS | S31700 |
| EN | 1.4449 |
| DIN | X2CrNiMo18-15-4 |
| JIS | SUS 317 |
ASTM A312 TP 317 Pipes & Tubes are used in highly corrosive environments such as chemical processing, petrochemical plants, marine applications, pulp & paper mills, pharmaceutical industries, and heat exchangers. Their high molybdenum content provides excellent resistance to pitting and crevice corrosion.
TP 317 is an austenitic stainless steel grade under ASTM A312 with higher chromium, nickel, and molybdenum content compared to 316. This composition offers improved corrosion resistance in aggressive chemical and chloride-rich environments.
Yes, ASTM A312 TP 317 Pipes & Tubes are available in seamless and welded forms, including ERW and EFW. These options allow flexibility based on pressure ratings, sizes, and specific project requirements.
ASTM A312 TP 317 Pipes & Tubes are available from 1/8” NB to 36” NB with wall thicknesses ranging from Schedule 5S to XXS. They are supplied as per ASTM A312 / ASME SA312 standards with custom lengths on request.
ASTM A312 TP 317 Pipes & Tubes are stocked and supplied worldwide by Metal Tubular Products, offering a wide size range, fast delivery, and full certification in compliance with international quality standards.
We export steel pipes and tubes to over 60 countries worldwide, serving clients across Asia, Europe, the Middle East, Africa, Oceania, and the Americas. Our strong global logistics network ensures reliable delivery, quality assurance, and compliance with international standards.
Export Destinations Include:
Afghanistan, Albania, Andorra, Angola, Austria, Australia, Bahrain, Bangladesh,
Bhutan, Brazil, Brunei, Belarus, Belgium, Bulgaria, Cambodia, China, Cyprus,
Croatia, Czech Republic, Canada, Denmark, Estonia, Egypt, Finland, France,
Germany, Greece, Georgia, Hungary, Iceland, Ireland, Italy, Indonesia, Iran,
Iraq, Israel, Japan, Jordan, Kazakhstan, Kuwait, Kyrgyzstan, Lebanon, Latvia,
Latin America, Liechtenstein, Lithuania, Luxembourg, Malta, Madagascar, Mexico,
Moldova, Monaco, Malaysia, Maldives, Mongolia, Myanmar (Burma), Nepal,
New Zealand, North Korea, Netherlands, Norway, Nigeria, Oman, Poland, Portugal,
Pakistan, Palestine, Philippines, Qatar, Russia, Romania, San Marino,
Serbia and Montenegro, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Saudi Arabia, Singapore, South Korea, South Africa, Sri Lanka, Sudan, Syria,
Taiwan, Tanzania, Tajikistan, Thailand, Turkey, Turkmenistan, Ukraine,
United Kingdom, United Arab Emirates (UAE), Uzbekistan, Venezuela, Vietnam,
Yemen, and more.
