Leading ISO-certified manufacturer and exporter of TP316L seamless stainless steel pipes (ASTM A312). We offer SS 316L seamless pipes, UNS S31603 SMLS pipes, A312 TP316L schedule 40/80 high-pressure pipes, WNR 1.4404/1.4435 seamless pipes. Available in custom and standard sizes for industrial, chemical, marine, and export applications.
At New Eagle Industrial Corporation, we specialize in the manufacturing and supply of ASTM A312 TP316L Seamless Pipes, engineered from high-quality stainless steel to meet the demanding requirements of modern industries. Our SS 316L SMLS Pipes provide exceptional resistance to corrosion, high strength, and long-term durability, making them suitable for chemical, petrochemical, marine, and industrial applications.
TP316L seamless pipes are produced in accordance with ASTM A312 / ASME SA312 standards and are ISO-certified, ensuring they meet international quality requirements. Each pipe is manufactured to maintain consistent wall thickness, precise dimensions, and smooth bore, which ensures reliable performance under high-pressure and high-temperature conditions. The low carbon content in TP316L minimizes carbide precipitation during welding, enhancing intergranular corrosion resistance.
We offer ASME SA312 TP316L Seamless Pipes in sizes ranging from 1/4″ to 24″, with various wall thicknesses from Schedule 10S to Schedule XXS / 160. Additionally, custom lengths and diameters can be produced to suit project-specific requirements, ensuring that every pipeline system receives a tailored, high-performance solution.
we ensure that every SS 316L Seamless Pipe undergoes rigorous quality checks to guarantee performance and reliability. Each pipe is subjected to hydrostatic testing to verify pressure resistance, Positive Material Identification (PMI) to confirm the correct grade and chemical composition, and ultrasonic and eddy current testing to detect internal and surface defects. Additionally, mechanical testing is performed to validate tensile strength, yield strength, elongation, and hardness, while dimensional and visual inspections ensure compliance with strict ASTM and ISO standards.
316L Stainless Steel Seamless Pipes – Technical Specifications
ASME SA312 TP316L SMLS Pipes – Chemical Composition
The chemical composition of ASTM A312 TP316L seamless pipes ensures superior corrosion resistance, excellent weldability, and long-term durability, making them ideal for chemical, petrochemical, marine, and industrial applications.
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.03 max |
| Manganese (Mn) | 2.0 max |
| Phosphorus (P) | 0.045 max |
| Sulfur (S) | 0.03 max |
| Silicon (Si) | 1.0 max |
| Chromium (Cr) | 16.0 – 18.0 |
| Nickel (Ni) | 10.0 – 14.0 |
| Molybdenum (Mo) | 2.0 – 3.0 |
| Iron (Fe) | Balance |
UNS S31603 Seamless pipes – Mechanical Properties
The mechanical properties of ASTM A312 TP316L seamless pipes provide high ductility, tensile strength, and toughness, ensuring reliable performance in high-pressure, high-temperature, and corrosive environments across chemical, marine, and industrial applications.
| Property | Value |
|---|---|
| Tensile Strength | 485 – 700 MPa |
| Yield Strength | 170 MPa min |
| Elongation | 40% min |
| Hardness | ≤ 95 HRB |
| Impact Strength | Good, notched specimens at room temperature |
| Density | 8.0 g/cm³ |
SS 316L Stainless Steel Seamless Pipe – Equivalent Grades
The equivalent grades of ASTM A312 TP316L seamless pipes ensure global compatibility and consistent performance, making them suitable for chemical, petrochemical, marine, and industrial applications while maintaining corrosion resistance, weldability, and mechanical strength.
| Standard / Country | Grade / Designation |
|---|---|
| ASTM / ASME (USA) | A312 TP316L |
| UNS (USA) | S31603 |
| EN / DIN (Europe) | 1.4404 |
| EN / DIN (Europe) | 1.4435 |
| JIS (Japan) | SUS316L |
| GOST (Russia) | 08Х17Н13М2 |
| BS / UK | 316S33 |
| AFNOR / France | Z6CND17-12 |
| WNR / Europe | 1.4404 / 1.4435 |
What makes ASTM A312 TP316L seamless pipes different from TP316 pipes?
- Low Carbon Content: TP316L contains a maximum of 0.03% carbon, significantly lower than TP316’s 0.08% carbon content. This reduction in carbon minimizes the risk of carbide precipitation during welding or high-temperature service, which helps prevent intergranular corrosion along the weld joints or heat-affected zones.
- Welding Advantage: The low carbon content of TP316L allows for superior weldability. It can be welded using TIG, MIG, or resistance welding methods without compromising its corrosion resistance or mechanical integrity, making it ideal for fabricated piping systems.
- Mechanical Stability: Despite the lower carbon content, TP316L maintains excellent ductility, tensile strength, and toughness, ensuring structural stability under high pressure and temperature conditions. It can withstand both high-pressure industrial pipelines and extreme service temperatures without losing performance.
What testing and certification do TP316L seamless pipes undergo?
- Hydrostatic Testing: Confirms pressure handling capability.
- Positive Material Identification (PMI): Verifies chemical composition and grade.
- Ultrasonic & Eddy Current Testing: Detects internal and surface defects.
- Mechanical Testing: Validates tensile, yield, elongation, and hardness properties.
- Dimensional & Visual Inspection: Ensures compliance with ASTM A312 / ASME SA312 and ISO standards.
- Certification: Mill Test Certificates (MTC), ISO, and third-party inspection reports available for industrial and export compliance.
Can TP316L seamless pipes be welded and fabricated easily?
- Welding Methods: Compatible with TIG, MIG, and resistance welding.
- Low Carbon Benefit: Minimizes intergranular corrosion in heat-affected zones.
- Fabrication: Can be shaped into elbows, tees, reducers, and flanges without losing mechanical or corrosion resistance properties.
- Applications: Preferred for complex piping networks in chemical, marine, and pharmaceutical plants.
Global Export Network for Stainless steel ASTM A312 TP316L Seamless Pipes
As a trusted manufacturer and exporter, New Eagle Steel supplies A312 Stainless Steel 316L Seamless Pipes 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
Applications of ASTM A312 Stainless Steel 316L Seamless Pipes Across Industries
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
