http://books.google.com/books?id=tOZZAAAAYAAJ&pg=PA82&lpg
Steel: Its History, Manufacture, Properties and Uses, 1880
James Stephen Jeans
p. 82 Bessemer: 28 tons or 63,000 psi
p. 189 Krupp: 70,000 80,000 psi
p. 416 Hay Steel by A.T. Hay, Burlington, Iowa: 90,000-100,000 psi
p. 521 Puddled Steel: 50 tons or 112,000 psi

http://books.google.com/books?id=tOZZAAAAYAAJ&pg=PA522&lpg
American Board of Ordnance
Russian Iron: 62,644
English Rolled Iron: 56,532
American hammered: 53,913

The Tensile Strength of Steel
http://books.google.com/books?id=tOZZAAAAYAAJ&pg=PA621&lpg

No mention of studies on pattern welded gun barrels frown


Last edited by Drew Hause; 02/16/14 06:00 PM.
https://sites.google.com/a/damascusknowledge.com/www/home