Parker may have borrowed "Titanic Steel" from Robert Mushet, who adapted the Bessemer Process in 1856 by adding manganese (
speigeleisen) and established the Forest Steel Works in Darkhill, Forest of Dean, Gloucestershire possibly producing the first Carbon Steel.
He also experimented with tungsten, titanium, and other alloys and established the Titanic Steel Works in 1862 for production of his "Titanic Steel".
1870
https://books.google.com/books?id=9s...J&pg=PA141&lpg