Material Description
In718 alloy comprises nickel mass fraction up to 55% alloyed with chromium up to 21%, along with other minor elements. Properties include high strength, excellent corrosion resistance and a working temperature range between -250 °C and 650 °C (-418 °F to 1200 °F). It is also age-hardenable. In718 has a wide range of applications within industry and is particularly suitable for applications where good tensile, creep, and rupture strength is required. Similar to In625 which is suitable for applications where corrosion and oxidation resistance at high temperatures is required. Its excellent welding characteristics and resistance to cracking makes it an ideal material for additive manufacturing.
Material Properties • Retains strength up to 650 °C • High creep resistance • High corrosion resistance • Solidification properties suit additive manufacture | Applications • Aerospace, defense and nuclear • Gas turbine blades & Rocket motors • Exhaust manifolds • Heat exchangers |
Composition of Powder (ASTM F3056, AMS 5596, AMS 5662, ASTM B637)
Element | Chemical Formula | Chemical Composition (%) | CAS NO. |
Nickel | Ni | 50-55 | 7440-02-0 |
Chrome | Cr | 17-21 | 7440-47-3 |
Molybdenum | Mo | 2.80-3.30 | 7439-98-7 |
Niobium | Nb | 4.75-5.50 | 7440/3/1 |
Titanium | Ti | 0.65-1.15 | 7440-32-6 |
Aluminum | Al | 0.20-0.80 | 7429-90-5 |
Iron | Fe | Bal | 7439-89-6 |
Copper | Cu | ≤0.30 | 7440-50-8 |
Cobalt | Co | ≤1 | 7440-48-4 |
Carbon | C | ≤0.08 | 7440-44-0 |
Manganese | Mn | ≤0.35 | 7439-96-5 |
Sulfur | S | ≤0.0015 | 7704-34-9 |
Phosphorus | P | ≤0.0015 | 7723-14-0 |
Silicon | Si | ≤0.35 | 7440-21-3 |
Boron | B | ≤0.006 | 7440-42-8 |
Manganese | Mg | ≤0.01 | 7439-95-4 |
Mechanical Properties of Additive Manufactured Components
As Built | |
Tensile Strength (Remark 3) | |
| Horizontal Direction (XY) | 1060MPa ±50MPa |
| Vertical Direction (Z) | 980MPa ±50MPa |
Yield Strength (Remark 3) | |
| Horizontal Direction (XY) | 780MPa±50MPa |
| Vertical Direction (Z) | 634MPa±50MPa |
Elongation at Break (Remark 3) | |
| Horizontal Direction (XY) | 27%±5% |
| Vertical Direction (Z) | 31%±5% |
Modulus of Elasticity (Remark 3) | |
| Horizontal Direction (XY) | 160GPa±2GPa |
| Vertical Direction (Z) | 160GPa±2GPa |
Hardness HRC (Remark 4) | 30 |
Note:
1. If the Inconel718 is heated to 980℃ in 3 hours……for more detailed post treatment procedures, please contact AMC Powders by email：info@amc-powder.com .
2. The hollow ratio of the printed part is below 0.5%, and the component density is above 99.5%, normally at 99.7-99.9%.
3. Particle size distribution optimized to suit specific machine platforms and process types (i.e., SLM, EBM, LMD, etc.) Custom sizing also available.
4. Full powder qualification including (but not exclusive to) the following: Size Distribution, Flow Properties, Chemistry and Morphology.
Remarks:
1. Metal powders of AMC has been tested on EOS M280/M290/M400, Concept Laser M2, SLM Solutions SLM 125/SLM 280, Trumpf Truprint 1000/ Truprint3000, Renishaw REN AM400, Farsoon FS273M/ FS271M, Eplus EP-M650H/EP-450H/EP-M260/EP-M450D, HBD 200/HBD350 and so on.
2. AMC can customize the chemical composition, particle size, flowability of the metal powders in additive manufacturing.
3. Tested at ambient temperature by Nadcap and UKAS accredited independent laboratory. Test ASTM E8. Machined prior to testing.
4. Tested to ASTM E384-11, after polishing.
Well-Proportioned PSD
High Sphericity
Low Oxygen Content
Cost Effective
