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New Eagle Industrial Corporation offers premium ASTM A269 TP904/904L instrumentation tubes, engineered for precision and durability in industrial and chemical applications. These stainless steel tubes provide superior corrosion resistance, high tensile strength, and excellent performance in high-temperature and aggressive environments. Ideal for instrumentation systems, chemical plants, heat exchangers, and other critical applications.
Our TP904 / TP904L instrumentation tubes are available in seamless and welded forms, offering versatility for a wide range of industrial applications. Designed with high precision, these tubes feature smooth finishes, consistent wall thickness, and dimensional accuracy to ensure reliable flow and system efficiency. The low carbon variant, TP904L, minimizes carbide precipitation during welding, making it ideal for chemical plants, instrumentation lines, and high-pressure systems where corrosion resistance and structural integrity are critical.
We combine quality, reliability, and customer-focused service to deliver the best ASTM A269 TP904/904L stainless steel tubing worldwide. Every tube is supplied with Mill Test Certificates (MTC) and meets stringent ASTM standards, guaranteeing performance in aggressive chemical and high-temperature environments. With customized lengths, diameters, and finishes available, our tubes are the trusted choice for engineers, contractors, and industrial buyers seeking precision, durability, and superior corrosion-resistant performance.
Stainless Steel 904L Instrumentation Tubes – Technical Specifications
JIS SUS904 / SUS904L instrumentation tubing – Chemical Composition
TP904L is the low-carbon variant of TP904, reducing carbide precipitation during welding while retaining superior corrosion resistance in aggressive chemical and chloride-rich environments.
| Element | TP904 | TP904L |
|---|---|---|
| Carbon (C) | 0.08 max | 0.02 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) | 19–23 | 19–23 |
| Nickel (Ni) | 24–26 | 24–26 |
| Copper (Cu) | 1–2 | 1–2 |
| Molybdenum (Mo) | 4–5 | 4–5 |
| Iron (Fe) | Balance | Balance |
ASTM A269 TP904 instrumentation tube – Mechanical Properties
TP904L’s low carbon content ensures excellent weldability while maintaining mechanical strength and corrosion resistance comparable to TP904.
| Property | TP904 | TP904L |
|---|---|---|
| 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 |
TP904L high-temperature instrumentation tube – Equivalent Grades
ASTM A269 TP904 / TP904L instrumentation tubes with global equivalents for UNS, EN/DIN, JIS, BS, and GOST standards. This ensures international compatibility and makes them ideal for chemical plants, instrumentation systems, and high-temperature industrial applications.
| Standard | TP904 | TP904L |
|---|---|---|
| UNS | N08904 | N08906 |
| EN / WNR | 1.4539 | 1.4539 |
| JIS | SUS904 | SUS904L |
| BS | 904S15 | 904S16 |
| GOST / Russian | 08Х22Н6Т | 08Х22Н6ТЛ |
How does TP904L differ from TP904 instrumentation tubing?
Carbon Content: TP904L has lower carbon (max 0.02%) compared to TP904 (max 0.08%).
Weldability: TP904L reduces carbide precipitation during welding, making it ideal for welded assemblies.
Corrosion Resistance: Both grades resist pitting, crevice, and chloride-induced corrosion.
Mechanical Strength: Tensile and yield strength are comparable for both TP904 and TP904L.
Why choose TP904L over TP904 for instrumentation tubes?
TP904L is the low-carbon variant of TP904, specifically designed to improve weldability and corrosion resistance in aggressive environments. Key advantages include:
Reduced Carbon Content: With a maximum of 0.02% carbon, TP904L minimizes carbide precipitation during welding.
Superior Corrosion Resistance: Maintains excellent resistance to pitting, crevice, and chloride-induced corrosion, even in high-temperature or chemical environments.
Maintains Mechanical Strength: Offers comparable tensile and yield strength to TP904 while ensuring long-term durability.
Ideal for Welded Applications: Perfect for chemical plants, instrumentation systems, and high-pressure piping where welded assemblies are required.
Can TP904 / TP904L tubes be customized?
Yes. At New Eagle Steel, we offer fully customizable TP904 and TP904L instrumentation tubes to meet the unique requirements of your project. Customers can choose specific lengths, outer diameters, wall thicknesses, and surface finishes including polished, bright-annealed, or mechanically finished options. Customization ensures that the tubing fits perfectly in chemical plants, instrumentation systems, heat exchangers, and high-pressure applications, providing optimal performance, corrosion resistance, and reliability in demanding environments. Our team also provides technical guidance to help select the right specifications for your industrial needs.
Global Export Network for SS 904 / 904L instrumentation Tubing
As a trusted manufacturer and exporter, New Eagle Steel supplies ASTM A269 TP904/904L 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
Comprehensive Uses of ASTM A269 TP904/904L Stainless steel Instrumentation Tubes in 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
