What kind of material is Inconel 718?
INCONEL® alloy 718 (UNS N07718/W.Nr. 2.4668) is a high-strength, corrosion-resistant nickel chromium material used at -423° to 1300°F. Typical composition limits are shown in Table 1. The age-hardenable alloy can be readily fabricated, even into complex parts.
What is the equivalent materials for Inconel 718 ?
Inconel 718 equivalents are primarily other forms or brands of the same alloy, like Alloy 718 (UNS N07718) or under different specifications (AMS 5662, ASTM B670), but for similar high-strength, high-temp performance, alternatives include Hastelloy alloys for corrosion, or other nickel superalloys like Haynes 282 or Alloy 925.
Chemical Composition of Inconel 718
|
Element
|
Percentage |
| Carbon |
0.08 max |
| Manganese |
0.35 max |
| Phosphorus |
0.015 max |
| Sulfur |
0.015 max |
| Silicon |
0.35 max |
| Chromium |
17-21 |
| Nickel |
50-55 |
| Molybdenum |
2.80-3.30 |
| Columbium |
4.75-5.50 |
| Titanium |
0.65-1.15 |
Physical Properties of Inconel 718
|
Solution Treated |
Solution Treated and Aged |
|
| Density |
0.296 lb/in3 (8.192 g/cm3) |
0.297 lb/in3 (8.22 g/cm3) |
| Specific Gravity |
8.19 |
8.22 |
| Melting Range |
2500-2600°F |
1370-1430°C |
Thermal Conductivity of Inconel 718
|
Temperature Range |
Co-Efficients |
||
|
°C |
°F |
W/m.K |
Btu.ft/ft2.hr.°F |
|
0-100 |
532-212 |
6.5 |
11.2 |
Inconel 718 Mechanical Properties
|
Yield Strength |
Ultimate Tensile Strength |
Elongation |
|
|
Sheet and strip |
80,000 psi (550 MPa) |
140,000 psi (965 MPa) |
30 (min) |
|
Plate |
105,000 psi (725 MPa) |
150,000 psi (1,035 MPa) |
30 (min) |
Inconel 718 Solution trated plus precipitation heat treated.
|
Yield Strength |
Ultimate Tensile Strength |
Elongation |
|
150,000 (1,035 MPa) |
180,000 psi (1,240 MPa) |
12 (min) |
What is the difference between Inconel 925 and 718?
Both Incoloy 925 and Inconel 718 are high-strength nickel alloys, but their main differences lie in their nickel content and cost: Inconel 718 has a significantly higher nickel content (50-55%) and contains strengthening elements such as niobium, making it stronger but also more expensive, and an ideal choice for the aerospace industry; while Incoloy 925 has a lower nickel content (38-46%) and a higher iron content, making it a more cost-effective option.
Is Inconel 718 stronger than titanium?
Inconel 718 has a tensile strength of 1,375 MPa while Ti-6Al-4V titanium alloy (highest-strength type), has a tensile strength of around 1,170 MPa. While this is lower strength than the strongest Inconel alloys, a wider range of properties may need to be considered in material selection.
GNEE specializes in the production and supply of a wide range of Inconel products to meet the demanding requirements of various industries. Our Inconel 718 products include Inconel 718 stud bolts, Inconel 718 fasteners, Inconel 718 hex bolts, and Inconel 718 hex nuts. We also offer a full range of other Inconel alloys, such as Inconel 600, Inconel 625, and Inconel 800, available in various forms such as fasteners, round bars, plates, washers, and flanges. We are committed to providing the highest quality and high-performance materials for your industrial needs.
