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625

Inconel 625 (UNS N06625) is a nickel-chromium-molybdenum superalloy with excellent corrosion resistance and high strength. It's commonly used in high-temperature applications such as aerospace and chemical processing.

Inconel 625 (UNS N06625) is a nickel-chromium-molybdenum superalloy that is known for its excellent corrosion resistance and high strength. It has a high nickel content, along with significant amounts of chromium and molybdenum, which provide resistance to a wide range of corrosive environments. Inconel 625 is also resistant to pitting, crevice corrosion, and intergranular attack, making it suitable for use in harsh chemical and corrosive environments.

One of the key advantages of Inconel 625 is its exceptional mechanical properties at high temperatures. It retains its strength and toughness even at temperatures up to 1000°C, making it ideal for high-temperature applications such as aerospace and chemical processing. Inconel 625 is also highly resistant to oxidation and has a low coefficient of thermal expansion, making it an ideal material for use in high-temperature applications where dimensional stability is important.

In addition to its mechanical and corrosion resistance properties, Inconel 625 is also highly resistant to stress corrosion cracking and has excellent weldability. It can be welded using a variety of welding techniques, including gas tungsten arc welding (GTAW), gas metal arc welding (GMAW), and shielded metal arc welding (SMAW).

Overall, Inconel 625 is a versatile superalloy that offers excellent corrosion resistance and high strength, making it an ideal material for a wide range of high-temperature applications. Whether used in aerospace, chemical processing, or other harsh environments, Inconel 625 provides the combination of durability and reliability that engineers need to design safe and effective systems.

Chemical Composition of 625

The chemical composition of Inconel 625 (UNS N06625) is as follows:

Nickel: 58.0-63.0%

Chromium: 20.0-23.0%

Molybdenum: 8.0-10.0%

Niobium: 3.15-4.15%

Iron: 5.0% max

Carbon: 0.10% max

Manganese: 1.0% max

Silicon: 0.50% max

Phosphorus: 0.015% max

Sulfur: 0.015% max

Aluminum: 0.40% max

Titanium: 0.40% max

Cobalt: 1.0% max

Note: The chemical composition may vary depending on the manufacturer and specific product specifications. The above values are general averages and may not reflect the exact composition of a specific product.

The physical and mechanical properties of Inconel 625 (UNS N06625) are:

Physical Properties:

  • Density: 8.4 g/cm3

  • Melting Point: 1350-1390°C

Mechanical Properties (Typical, at room temperature):

  • Tensile Strength: 880 MPa

  • Yield Strength: 550 MPa

  • Elongation: 45%

  • Reduction of Area: 50%

  • Hardness: Rockwell C 35

Note: These values are average and may vary depending on the manufacturing process, heat treatment, and other conditions. The mechanical properties also depend on the direction and orientation of the material during testing. It is always best to consult the manufacturer's specifications for specific product properties.

Physical & Mechanical Properties of 625

Variants of Nickel Alloys

There are many variants of nickel alloys, each with unique chemical compositions, properties, and applications. Some of the most common nickel alloys include:

  • Nickel 200 (UNS N02200): A pure nickel alloy with good corrosion resistance and high thermal and electrical conductivity.

  • Nickel 201 (UNS N02201): A low-carbon nickel alloy with high thermal and electrical conductivity and excellent corrosion resistance.

  • Inconel 600 (UNS N06600): A nickel-chromium alloy with excellent resistance to high-temperature corrosion and oxidation.

  • Inconel 601 (UNS N06601): A nickel-chromium-iron alloy with good resistance to high-temperature oxidation and corrosion.

  • Inconel 625 (UNS N06625): A nickel-chromium-molybdenum alloy with excellent resistance to corrosion and high-temperature oxidation.

  • Monel 400 (UNS N04400): A nickel-copper alloy with good corrosion resistance in a variety of environments.

  • Hastelloy C-276 (UNS N10276): A nickel-molybdenum-chromium alloy with excellent resistance to corrosion in a variety of harsh environments.

  • Incoloy 800 (UNS N08800): A nickel-iron-chromium alloy with good resistance to high-temperature corrosion and stress corrosion cracking.

These are just a few examples of the many nickel alloys available. The specific alloy chosen for a particular application depends on the desired properties and the conditions of use. It's always best to consult a materials engineer or specialist for the most appropriate selection.

AVAILABLE FORMS

Intamet offers Alloy 625 in a wide range of forms, including the below:

Stacked Pipes
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