Hello. I have a chart here in my file and if this is the same stuff, here's
the info from there.
ASTM/ASME SA-455...high tensile strength, stationary vessel steel
min. yield point KSI....35
tensile strength KSI.....70-90
minimum elongation % (8")....15
Chemical Composition ( maximum % )
C-0.33 / Mn-0.85 to 1.20 / P-.035
/ S-.035 / Si-.40 / Cb-.020
Hope that helps. Frank D.
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