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New Eagle Industrial Corporation is a trusted manufacturer and supplier of premium Stainless Steel Seamless Pipes engineered for high-pressure, high-temperature, and corrosive service conditions. Manufactured in accordance with ASTM A312, our SS SMLS pipes deliver superior mechanical strength, dimensional accuracy, and long-lasting performance across critical industries. With an extensive stock range in SS 316, 316L, 317, 317L, 904, 904L, and other stainless grades, we cater to global requirements with quick delivery and competitive pricing.
A312 SS Seamless Pipes are produced using advanced hot-piercing and cold-finishing processes to achieve excellent wall uniformity, smooth internal surfaces, and enhanced corrosion resistance. The seamless structure eliminates weld defects, making them ideal for high-pressure steam lines, offshore pipelines, and critical fluid transfer applications.
We are manufactures and supplies high-quality ASME SA312 stainless steel seamless pipes for heat exchangers, boilers, refineries, and industrial pipelines. Our SS SMLS pipes are corrosion-resistant, precision-engineered, and available in Schedule 40, Schedule 80, and customized thicknesses.
At New Eagle, quality is maintained from raw material selection to final inspection. Every pipe undergoes rigorous testing including hydrostatic testing, eddy current testing, PMI, ultrasonic examination, dimensional checks, and surface finish inspections. Our products comply with major global standards such as ASTM, ASME, DIN, EN, and JIS, ensuring reliability in demanding operating environments. We provide sizes ranging from 1/4” to 24”, with schedules covering SCH 5S to SCH XXS SS seamless pipes.
Industrial Stainless Steel Seamless Pipes – Technical Specifications
ASTM A312 SMLS Pipe – Chemical Composition
This table shows the chemical composition of 316, 316L, 317, 317L, 904, and 904L stainless steel seamless pipes to help select the right grade for corrosive and high-performance applications.
| Grade | C (Max) | Mn | Si | P (Max) | S (Max) | Cr | Ni | Mo | Cu |
|---|---|---|---|---|---|---|---|---|---|
| 316 | 0.08 | 2.00 | 0.75 | 0.045 | 0.030 | 16.0–18.0 | 10.0–14.0 | 2.00–3.00 | — |
| 316L | 0.03 | 2.00 | 0.75 | 0.045 | 0.030 | 16.0–18.0 | 10.0–14.0 | 2.00–3.00 | — |
| 317 | 0.08 | 2.00 | 0.75 | 0.045 | 0.030 | 18.0–20.0 | 11.0–15.0 | 3.00–4.00 | — |
| 317L | 0.03 | 2.00 | 0.75 | 0.045 | 0.030 | 18.0–20.0 | 11.0–15.0 | 3.00–4.00 | — |
| 904 | 0.02 | 2.00 | 1.00 | 0.045 | 0.035 | 19.0–23.0 | 23.0–28.0 | 4.0–5.0 | 1.0–2.0 |
| 904L | 0.02 | 2.00 | 1.00 | 0.045 | 0.035 | 19.0–23.0 | 23.0–28.0 | 4.0–5.0 | 1.0–2.0 |
SMLS Stainless Steel Pipes – Mechanical Properties
This table highlights the mechanical properties of 316, 316L, 317, 317L, 904, and 904L stainless steel seamless pipes, including tensile strength, yield strength, elongation, and hardness. Engineers and buyers can select the correct grade for high-pressure, corrosive, marine, and chemical applications.
| Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HRB) |
|---|---|---|---|---|
| 316 | 515–720 | 205–310 | 40 | 79–90 |
| 316L | 485–690 | 170–275 | 40 | 79–90 |
| 317 | 520–730 | 205–310 | 35 | 79–90 |
| 317L | 490–700 | 175–280 | 35 | 79–90 |
| 904 | 500–700 | 210–310 | 30 | 80–95 |
| 904L | 480–690 | 180–300 | 30 | 80–95 |
high-Pressure Stainless Steel Seamless Pipes – Equivalent Grades
This table provides international equivalent grades for 316, 316L, 317, 317L, 904, and 904L stainless steel seamless pipes. It helps engineers, buyers, and procurement teams select the correct grade across ASTM, UNS, EN/DIN, JIS, GOST, BS, and AFNOR standards for chemical, marine, and high-temperature applications.
| Grade | UNS | EN/DIN | JIS | GOST | BS | AFNOR |
|---|---|---|---|---|---|---|
| 316 | S31600 | 1.4401 | SUS316 | 08Х17Н13М2 | 316S31 | Z6CND17-11 |
| 316L | S31603 | 1.4404 | SUS316L | 08Х17Н13М3 | 316S33 | Z6CND17-12 |
| 317 | S31700 | 1.4436 | SUS317 | 08Х18Н13М3Т | 317S31 | Z2CNDT17-12 |
| 317L | S31703 | 1.4438 | SUS317L | 08Х18Н13М3ТЛ | 317S33 | Z2CNDT17-13 |
| 904 | S90400 | 1.4539 | SUS904 | 06Х25Н20 | 904S12 | Z1CNDT21-11 |
| 904L | S90403 | 1.4539 | SUS904L | 06Х25Н20-Л | 904S13 | Z1CNDT21-12 |
What are the advantages of Stainless Steel Seamless Pipes over Welded Pipes?
- No Weld Seam: Manufactured from a solid billet, seamless pipes have no longitudinal weld, reducing the risk of leaks or failures under pressure.
- Higher Strength: Seamless construction provides superior tensile and yield strength under both internal and external pressure.
- Excellent Corrosion Resistance: Ideal for chloride-rich, acidic, and chemically aggressive environments.
- Smooth Internal Surface: Ensures efficient fluid flow and makes pipes suitable for high-precision, sanitary, and instrumentation applications.
- High-Performance Applications: Perfect for high-pressure, high-temperature, and critical chemical processes where reliability and safety are essential.
How to select the right stainless steel grade for seamless pipes?
- Corrosive Environment: Use 316/316L for mild corrosion, 317/317L for aggressive chemicals, 904/904L for strong acids.
- Temperature: High-temp applications require 321, 347, or 310S.
- Pressure: High-pressure systems prefer thicker schedules or seamless construction.
- Weldability: L-grades (low carbon) prevent carbide precipitation during welding.
- Budget & Availability: Consider local standards, supplier stock, and price.
Why choose New Eagle Steel for ss seamless pipes?
- High-Quality Manufacturing: ASTM A312 compliant, high-precision seamless pipes
- Wide Grade Range: 316, 316L, 317, 317L, 904, 904L
- Global Standards: ASTM, UNS, EN/DIN, JIS, GOST, BS, AFNOR
- Testing & Certification: Mechanical, chemical, NDT, hydrostatic
- Fast Delivery: Bulk and customized orders, globally export-ready
- Technical Support: Expert guidance for grade selection, application, and installation
Global Export Network for Stainless steel SMLS Pipes
As a trusted manufacturer and exporter, New Eagle Steel supplies A312 Stainless Steel 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 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
