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.

manufacturer and exporter of Inconel 625 Seamless Tubes

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

ASTM B444 / ASME SB444

Grade

Alloy 625

Manufacturing Process

Seamless / Cold Drawn

Outer Diameter Range (OD)

6 mm to 114.3 mm (1/4” to 4-1/2”)

Wall Thickness

0.5 mm to 8 mm (Custom thickness on request)

Length

6 Meters (Standard) / Up to 12 Meters (Custom)

Surface Finish

Bright Annealed (BA), Polished, Pickled & Passivated, or Mirror Finish

End Finish

Plain Ends (PE), Beveled Ends (BE), Threaded Ends (on request)

Tolerances

As per ASTM B444 / ASME SB444(OD, Wall ±10%)

Testing & Inspection

Hydrostatic Test, Eddy Current Test, Ultrasonic Test, PMI, Mechanical Testing, Dimensional & Visual Inspection

Heat Treatment

Bright Annealed / Solution Annealed at 1900°F (1040°C) minimum, followed by rapid quenching

Surface Protection

Plastic-capped ends, HDPE/woven wrapping, export bundles with identification tags

Certifications

EN 10204 3.1 / 3.2, ISO 9001:2015, PED 2014/68/EU (on request)

Equivalent Standards

UNS N06625, ASTM B444 / SB444, WNR 2.4856, DIN 2.4856, ISO NiCr22Mo9Nb, JIS SUS6625, GOST 06HNK35МДТ, BS Nickel Alloy 625

Applications

Instrumentation Tubing, Heat Exchangers, Condensers, Hydraulic Systems, Power & Process Industries

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.
  • 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.
  • 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.

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
Oil & Gas Industry
Petrochemical & Chemical Processing
Petrochemical & Chemical Processing
Power Generation (Thermal, Nuclear & Renewable)
Power Generation (Thermal, Nuclear & Renewable)
Marine & Offshore Engineering
Marine & Offshore Engineering
Pharmaceuticals & Biotechnology
Pharmaceuticals & Biotechnology
Food, Beverage & Dairy Processing
Food, Beverage & Dairy Processing
Pulp & Paper Industry
Pulp & Paper Industry
Aerospace & Defense
Aerospace & Defense
Automotive & Transportation
Automotive & Transportation
instrumentation control systems
Instrumentation & Control Systems
Water Treatment & Desalination
Water Treatment & Desalination
HVAC & Heat Exchanger Systems
HVAC & Heat Exchanger Systems
Construction & Infrastructure Projects
Construction & Infrastructure Projects
Mining & Metallurgy
Mining & Metallurgy
Semiconductor & High-Purity Gas Distribution
Semiconductor & High-Purity Gas Distribution