Leading manufacturer and exporter of Inconel 625 Seamless Tubes, ASTM B444 Alloy 625 Tubing, UNS N06625 Seamless Tubes, DIN 2.4856 Bright Annealed Tubes, Inconel 625 Cold Drawn & Polished Tubes, Inconel 625 Heat Exchanger Tubes — contact us for the best quote.
New Eagle Industrial Corporation is a trusted manufacturer, exporter, and supplier of premium Inconel 625 Seamless Tubes. With extensive experience in nickel alloy tubing, we deliver precision-engineered products that meet global standards. Our focus on quality, timely delivery, and customer satisfaction makes us a reliable choice for industries requiring superior corrosion and high-temperature performance.
Inconel 625 is a nickel-chromium-molybdenum alloy known for its outstanding resistance to oxidation and corrosion across a wide range of severe environments. It exhibits excellent strength and toughness from cryogenic temperatures up to 982°C (1800°F).
The ASTM B444 Alloy 625 Seamless Tubes are produced using advanced cold drawing and bright annealing techniques, ensuring precise dimensions, smooth internal surfaces, and enhanced mechanical integrity. The addition of molybdenum and niobium gives Inconel 625 its remarkable ability to withstand pitting, crevice corrosion, and stress-corrosion cracking, making it ideal for demanding industrial operations.
Our products are available in a wide range of sizes and thicknesses, meeting both standard and custom requirements. When you choose New Eagle Steel, you get more than just a product — you get reliability, precision, and performance built to last in the world’s toughest environments.
Inconel 625 Seamless Tubes ASTM B444 – Technical Specifications
Standard
Grade
Manufacturing Process
Outer Diameter Range (OD)
Wall Thickness
Length
Surface Finish
End Finish
Tolerances
Testing & Inspection
Heat Treatment
Surface Protection
Certifications
Equivalent Standards
Applications
Seamless Tubes
- Stainless Steel
- ASTM A269 TP316
- ASTM A269 TP316L
- ASTM A269 TP317/317L
- ASTM A269 TP904/904L
- Hastelloy (C276 – ASTM B622)
- Monel 400 (ASTM B163 / B165)
- Inconel 625 (ASTM B444)
- Incoloy 825 (ASTM B423)
- SMO 254 (ASTM A213 / A269)
- Duplex (UNS S31803 / S32205)
- Super Duplex (UNS S32750 / S32760)
- Copper (ASTM B68 / B75 / B251)
- Alloy steel (ASTM A213)
Precision-Engineered Products
ASTM B444 Inconel 625 Seamless Tubes – Chemical Composition
The chemical composition of Inconel 625 Seamless Tubes is carefully controlled to provide exceptional corrosion resistance, high strength, and durability in extreme environments, Inconel 625 is a nickel-chromium-molybdenum-niobium alloy designed for marine, chemical, aerospace, and heat exchanger applications.
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | 58.0 min – 63.0 max |
| Chromium (Cr) | 20.0 – 23.0 |
| Molybdenum (Mo) | 8.0 – 10.0 |
| Niobium + Tantalum (Nb + Ta) | 3.15 – 4.15 |
| Iron (Fe) | 5.0 max |
| Manganese (Mn) | 0.5 max |
| Silicon (Si) | 0.5 max |
| Carbon (C) | 0.10 max |
| Sulfur (S) | 0.015 max |
| Copper (Cu) | 0.50 max |
| Phosphorus (P) | 0.015 max |
UNS N06625 seamless tubing – Mechanical Properties
The mechanical properties of Inconel 625 Seamless Tubes make it an ideal choice for high-temperature, high-pressure, and corrosive applications. Manufactured to meet ASTM B444 / ASME SB444, UNS N06625, and DIN 2.4856 standards, these tubes combine exceptional strength, toughness, and durability across a wide range of temperatures.
| Property | Value |
|---|---|
| Tensile Strength | 827 – 1,138 MPa (120 – 165 ksi) |
| Yield Strength (0.2% offset) | 414 – 552 MPa (60 – 80 ksi) |
| Elongation (in 50mm) | 30 – 40% |
| Hardness (HRB) | 90 – 95 |
| Modulus of Elasticity | 207 GPa |
| Density | 8.44 g/cm³ |
| Melting Range | 1,300 – 1,400°C |
Alloy 625 Seamless Tubes – Equivalent Grades
Inconel 625 Seamless Tubes are manufactured according to international standards, ensuring global compatibility and high performance in corrosive and high-temperature environments. These tubes are recognized under various standards and grades worldwide, allowing engineers and buyers to select the appropriate specification for their projects.
| Standard / Specification | Equivalent Grade / Designation |
|---|---|
| UNS (USA) | N06625 |
| ASTM / ASME | B444 / SB444 |
| DIN / EN (Europe) | 2.4856 |
| ISO | NiCr22Mo9Nb |
| JIS (Japan) | SUS 6625 |
| GOST (Russia) | 06HNK35МДТ |
| BS (UK) | Nickel Alloy 625 |
What are the key advantages of using Inconel 625 Seamless Tubes?
- Exceptional Corrosion Resistance: Inconel 625 exhibits outstanding resistance to a wide range of corrosive environments, including oxidation, pitting, crevice corrosion, and stress corrosion cracking. This makes it ideal for handling aggressive chemicals and chloride-rich conditions.
- High-Temperature Strength: These tubes maintain excellent mechanical integrity at elevated temperatures, performing reliably up to 982°C (1800°F). This property is crucial for high-temperature industrial applications such as gas turbines and heat exchangers.
- Durability & Longevity: Inconel 625 is engineered for long-term use and can last 20–40 years under normal industrial operating conditions, depending on factors like temperature, pressure, and chemical exposure.
- Versatile Applications: The alloy’s unique combination of strength, corrosion resistance, and weldability makes it suitable for diverse industries, including chemical processing, marine, aerospace, and power generation.
- Seamless Construction: The seamless manufacturing process ensures uniform wall thickness, leak-proof performance, and smooth internal surfaces, which improves flow characteristics and reduces the risk of failure under pressure.
Why choose Inconel 625 over other nickel alloys or stainless steels?
- Superior corrosion resistance: Compared to Monel, Inconel 600, and stainless steel in chloride-rich and oxidizing environments.
- Better creep and tensile strength: Performs well at high temperatures.
- Excellent weldability: Ideal for custom piping and assemblies.
- Reliable performance: Withstands extreme temperature, pressure, and chemical exposure scenarios.
How long is the service life of Inconel 625 Seamless Tubes in industrial applications?
- Typically 20–40 years in normal operating conditions, depending on temperature, pressure, and chemical exposure.
- Proper installation, maintenance, and adherence to ASTM B444 / DIN 2.4856 standards ensure maximum longevity.
- Outperforms most stainless steels, Monel, and other nickel alloys in high-temperature and corrosive environments.
Global Export Network for Inconel 625 Seamless Tubing
As a trusted manufacturer and exporter, New Eagle Steel supplies Alloy 625 seamless 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
ASTM B444 Inconel 625 Tubes for Leading Industrial Applications

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

