Understanding the differences between Inconel 718 and Inconel 625 alloys is crucial for both manufacturers and engineers.
Equally important is understanding the performance of each alloy in processing techniques such as roll forming, stamping, micro-laser welding, and deep drawing.
At Gnee Steel, we have an experienced team to help you find the best Inconel alloy strip and stainless steel strip for your project.
Comparison of Inconel 625 and Inconel 718 alloy strips
Comparison of Inconel 625 and Inconel 718 alloy strips
Inconel 625 and 718 alloy strips are high-performance nickel-based superalloys, each with its own unique applications: 625 alloy strip excels in corrosion resistance and weldability, making it suitable for marine/chemical environments; while 718 alloy strip offers superior high-temperature strength, fatigue resistance, and creep resistance, making it suitable for aerospace/engine components. Due to its age-hardening properties, Inconel 718 strip is generally stronger and more expensive.
What are the advantages of Inconel 718?
Inconel 718 is a high-strength, corrosion-resistant nickel-based superalloy. It possesses excellent mechanical properties, high-temperature strength, and resistance to oxidation and corrosion. Inconel 718 is widely used in various industries, including aerospace, oil and gas, automotive, and power generation.
What is Inconel 625 alloy strip?
Inconel 625 alloy strip, also known as UNS N06625 or W.Nr. 2.4856, is a nickel-strengthened strong solid solution alloy with excellent corrosion resistance, high tensile strength, high oxidation resistance, and good fatigue properties.
What is Inconel 718 alloy strip?
Inconel 718 alloy strip, also known as UNS N07718 or W.Nr. 2.4668, is a nickel-based superalloy renowned for its excellent corrosion resistance, high strength, and wide temperature range (-423°F to 1300°F). Its yield strength can reach up to 650°C, making it one of the top wrought superalloys on the market. This Inconel alloy also exhibits good oxidation resistance, fatigue resistance, and corrosion resistance. Its superior properties make it an ideal alloy for manufacturing parts with various complex shapes.
Nickel 625 vs 718 Alloy Chemical Composition
| Element | Inconel 625 | Inconel 718 |
|---|---|---|
| Chromium (Cr) | 22 | 17-21 |
| Iron (Fe) | 4 | Balance |
| Titanium (Ti) | 0.3 | 0.65-1.15 |
| Aluminum (Al) | 0.3 | 0.20-0.80 |
| Carbon (C ) | 0.05 | 0.08 max |
| Phosphorous (P) | 0.01 | 0.015max |
| Boron (B) | - | 0.006 max |
| Nickel (Ni) | 60 | 50-55 |
| Molybdenum (Mo) | 9 | 2.80-3.30 |
| Niobium (Nb) | 3.5 | 4.75-5.50 |
| Manganese (Mn) | 0.3 | 0.35 max |
| Silicon (Si) | 0.25 | 0.35 max |
| Sulfur (S) | 0.003 | 0.015 max |
| Cobalt (Co) | - | 1.00 max |
| Tantalum (Ta) | - | 0.30 max |
Mechanical Properties of inconel 718 & 625
| Properties | Inconel 625 | Inconel 718 |
|---|---|---|
| Elongation at Break | 33 to 34 % | 12 to 50 % |
| Poisson's Ratio | 0.29 | 0.29 |
| Shear Strength | 530 to 600 MPa (77 to 87x 103psi) | 660 to 950 MPa (96 to 140x 103psi) |
| Yield Strength | 320 to 450 MPa (47 to 65x 103 psi) | 510 to 1330 MPa (74 to 190 x 103 psi) |
| Elastic Modulus | 190 GPa (28 x 106 psi) | 200 GPa (30 x 106 psi) |
| Fatigue Strength | 240 to 320 MPa (34 to 47 x 103 psi) | 460 to 760 MPa (67 to 110 x 103 psi) |
| Shear Modulus | 530 to 600 MPa (77 to 87 x 103 psi) | 75 GPa (11 x 106 psi) |
| Tensile Strength | 790 to 910 MPa (120 to 130 x 103 psi) | 930 to 1530 MPa (130 to 220 x 103 psi) |
Inconel718 vs 625 Alloy Machinability
| Coated Carbide | |||
|---|---|---|---|
| Feed | Surface Speed | ||
| Mm/rev | lpr | m/min | fpm |
| 0.13-0.51 | 0.005-0.020 | 14-34 | 45-110 |
| High Speed | |||
|---|---|---|---|
| Feed | Surface Speed | ||
| Mm/rev | lpr | m/min | fpm |
| 0.13-0.51 | 0.005-0.020 | 4.0-10.7 | 13-35 |
What are the applications of Inconel 625 and Inconel 718 alloy strips?
Both Inconel 718 and 625 alloys are suitable for numerous industries and applications.
Their properties and composition allow them to perform exceptionally well in various fields.
Applications of Inconel 625 Alloy Strip
Inconel 625 alloy has extremely high corrosion resistance, making it very common in the oil and gas industry. It is also widely used in the aerospace field.
Applications of Inconel 718 Alloy Strip
Inconel 718 alloy is very popular in the aerospace field. Its excellent heat resistance makes it ideal for projects requiring high-temperature environments.
About Gnee Steel
Gnee Steel is a professional manufacturer of nickel-based alloys, including Nickel 201, Nickel 202, Hastelloy C-276, Hastelloy C-22, Hastelloy B, Hastelloy C-4, Inconel 600, Inconel 625, Inconel 718, Inconel X-750, Incoloy 800, Incoloy 800H/HT, Incoloy 825, Monel 400, Monel K500, and other high-temperature alloy materials. We specialize in the production and sales of alloy materials. Gnee Steel's products are widely used in aerospace, chemical, power generation, automotive, nuclear energy, and other fields, and we can provide customized alloy material solutions according to customer needs. For inquiries about alloy material prices or customized alloy material solutions, please feel free to contact us via email at ss@gneemetal.com for a quote.
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