Following up on thread330-288757 I have to do a repair on Penstock built from ASTM A285-57T Grade C "Firebox" material. I am wondering if anyone has access to this standard & can give me tensile & chemistry properties for this grade.
Why don't you use ASTM A 285 material specification from an edition that can possibly be found over the internet. The chemistry and tensile properties will be close as to what was published in 1957.