Introduction:
Inconel 625 wire is a corrosion-resistant nickel-based alloy known
for its high strength and excellent fabricability. It is commonly
used in a wide range of applications, including marine and chemical
processing, due to its outstanding resistance to a variety of
corrosive environments. Inconel 625 wire offers exceptional
strength at elevated temperatures and retains its mechanical
properties in both high-temperature and cryogenic conditions.
This alloy is often used in wire form for applications such as
springs, seals, and electrical resistance heating wires. Its
combination of high strength, excellent corrosion resistance, and
fabricability makes it a popular choice for demanding environments
where reliability is crucial.
Specifications:
Chemical Composition:
Nickel (Ni): Approximately 58%
Chromium (Cr): Around 20-23%
Molybdenum (Mo): Around 8-10%
Niobium (Nb): Around 3.15-4.15%
Iron (Fe): Around 5%
Small amounts of other elements such as titanium and aluminum
Physical Properties:
Density: 8.44 g/cm³
Melting Point: 1290-1350°C (2350-2460°F)
Mechanical Properties:
Tensile Strength: 760 MPa (110 ksi) minimum
Yield Strength: 345 MPa (50 ksi) minimum
Elongation: 30% minimum
Standards:
ASTM B446 (Rod, Bar, and Wire)
ASTM B443 (Plate, Sheet, and Strip)
AMS 5599 (Rod, Bar, and Wire)
AMS 5596 (Plate, Sheet, and Strip)
Typical Applications:
Chemical processing equipment
Aerospace components
Marine applications
Heat exchangers
Springs and seals
Parameter:
| Item | C | Mn | Fe | P | S | Si | Cu | Ni | Co | Al | Ti | Cr | Nb+Ta | Mo | B |
| Inconel 625 | ≤0.08 | ≤0.35 | rest | -- | ≤0.015 | ≤0.35 | ≤0.3 | 50-55 | ≤10 | ≤0.8 | ≤1.15 | 17-21 | 4.75-5.5 | 2.8-3.3 | -- |
| AMS Number | Alloy | Type | UNS | Cross Ref. Spec | Misc./Shape |
|---|
| AMS 5581 | Inconel 625 | Nickel | N06625 | |
| AMS 5581 Custom Tube | Inconel 625 | Nickel | N06625 | - | Custom Tube |
| AMS 5581 Tubing | Inconel 625 | Nickel | N06625 | - | Tubing |
| AMS 5599 | Inconel 625 | Nickel | N06625 | |
| AMS 5599 Plate | Inconel 625 | Nickel | N06625 | - | Plate |
| AMS 5599 Sheet | Inconel 625 | Nickel | N06625 | - | Sheet |
| AMS 5599 Strip | Inconel 625 | Nickel | N06625 | - | Strip |
| AMS 5666 | Inconel 625 | Nickel | N06625 | |
| AMS 5666 Bar | Inconel 625 | Nickel | N06625 | - | Bar |
| AMS 5666 Custom Tube | Inconel 625 | Nickel | N06625 | - | Custom Tube |
| AMS 5666 Forging | Inconel 625 | Nickel | N06625 | - | Forging |
| AMS 5666 Ring | Inconel 625 | Nickel | N06625 | - | Ring |
| AMS 5869 | Inconel 625 | Nickel | N06625 | |
| AMS 5869 Plate | Inconel 625 | Nickel | N06625 | - | Plate |
| AMS 5869 Sheet | Inconel 625 | Nickel | N06625 | - | Sheet |
| AMS 5869 Strip | Inconel 625 | Nickel | N06625 | - | Strip |
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Feature:
- Corrosion Resistance: Inconel 625 alloy wire performs well in
acidic and alkaline environments and resists corrosion and stress
corrosion cracking, making it suitable for corrosive media in the
chemical processing industry.
- High-temperature strength: The alloy wire maintains high strength
and rigidity in high-temperature environments and can withstand the
high-temperature requirements during chemical treatment.
- Oxidation resistance: Inconel 625 alloy wire can resist oxidation
and hot corrosion, and is suitable for long-term use in high
temperature environments.
- Good machinability: The alloy has good machinability, making it
easy to manufacture parts and components of various shapes and
sizes.
Advantages:
- Outstanding corrosion resistance: Inconel 625 alloy wire has
excellent corrosion resistance in the chemical processing industry
and can maintain good stability in corrosive media such as acid,
alkaline and chloride.
- Strong resistance to stress corrosion cracking: This alloy wire has
high resistance to stress corrosion cracking and is suitable for
high stress environments that may exist during chemical processing.
- Excellent high-temperature performance: Inconel 625 alloy wire has
excellent stability and high-temperature strength in
high-temperature environments, and is suitable for high-temperature
applications in the chemical processing industry.
- Good weldability: This alloy wire has good weldability, making it
easy to connect with other materials and manufacture complex
components.
Specific applications :
Inconel 625 is utilized in a wide range of applications due to its
exceptional corrosion resistance, high strength, and versatility.
Some common applications include:
1. Chemical Processing: Inconel 625 is used in chemical processing
equipment such as reactors, vessels, and piping systems due to its
resistance to a variety of corrosive substances, including acids
and chlorides.
2. Aerospace and Marine Components: The alloy is employed in
aerospace and marine applications, including aircraft ducting
systems, engine exhaust systems, and seawater components, where its
corrosion resistance and high strength are valuable.
3. Oil and Gas Industry: Inconel 625 finds use in components
exposed to sour gas environments, such as downhole equipment and
wellhead components, where resistance to hydrogen sulfide and
chloride stress corrosion cracking is essential.
4. Heat Exchangers: The alloy is utilized in heat exchangers for
its resistance to pitting and crevice corrosion, making it suitable
for applications involving seawater and brackish water.
5. Springs and Seals: Inconel 625 wire is often employed in the
manufacturing of springs, seals, and electrical resistance heating
wires due to its high strength and fabricabilit
Q & A:
Q1: What makes Inconel 625 wire suitable for corrosive
environments?
A1: Inconel 625 wire exhibits exceptional corrosion resistance,
allowing it to withstand acids, alkalis, and seawater, making it a
reliable choice for applications in aggressive chemical
environments.
Q2: What are the key advantages of using Inconel 625 wire?
A2: Inconel 625 wire offers a combination of high strength,
excellent fatigue resistance, and weldability, making it an ideal
material for components subjected to extreme conditions and cyclic
loading, such as in aerospace, chemical processing, and marine
industries.
