"Inco 718", also known as "Inconel 718", a.k.a. "Alloy 718" is a fairly common nickel-chromium-iron alloy, sometimes called a nickel based superalloy. TVP was right that Special Metals holds the tradename, and their datasheet is at
"Pyrotool 7" is one of their tradenames.
After reading the brochure, you can direct your questions to the technical service department of one of the producers- I've always had good experiences talking over proposed applications with those folks.
I believe you mean superplastic forming, so the answer to your question is yes. Lee Gearhart gave you the link to the technical bulletin for the Inconel 718spf (superplastic forming) grade in his earlier reply. I will copy it here: