Historical
BS 1501-2 Addendum No. 1:1973
Steels for pressure purposes. Specification for alloy steels
Alloy steels, Steels, Sheet materials, Fired pressure vessels, Unfired pressure vessels, Pressure vessels, Tensile strength, Elongation, Bend testing, Yield stress, Proof stress, Charpy impact tests, Mechanical properties of materials
British Standards Institution [bsi]