Alloy 718
(UNS N07718) Alloy 718 (Inconel 718) Nickel-chromium alloy. Alloy 718 is a high strength age-hardenable material that is easily fabricated. Alloy 718 has very good welding characteristics and is resistant to post weld cracking.
Chemistry
| Element |
C |
Mn |
P |
S |
Si |
Cr |
Cu |
Mo |
Co |
Al |
Ti |
| Alloy 718 |
0.08 max |
0.35 max |
0.015 max |
0.015 max |
0.35 max |
17.00-21.00 |
0.30 max |
2.80-3.30 |
1.00 max |
0.20-0.80 |
0.65-1.15 |
Physical Constants
| Density | 0.296 lb./in3 annealed |
| Density | 0.297 lb./in3 annealed & aged |
Heating
| Forging | 1650ºF min 2050ºF max |
Viking Forging Parameters
| Rings | 18" O.D. max. | 80 lbs. |
| Sleeves | 18" O.D. max. | 80 lbs. |
| Disks | 16" Dia. max. | 80 lbs. |
| Round Bar | 7.5" Dia. X 63" long | 800 lbs. |
| Square/Rectangular Bar | 7.5" Square max X 63" long | 800 lbs. |
| Blocks | | 80 lbs. |
| Shafts | 7.5" Dia. max. X 63" long | 800 lbs. |
