ASTM A414
ASTM A414 is a standard specification for hot-rolled carbon steel sheet for fusion welded or brazed pressure vessels. The specification includes seven different grades, each with different specified minimum strength requirements. Of the seven different grades, SSAB produces Grade G which has specified minimum yield and tensile strengths of 45 ksi and 75 ksi, respectively. ASTM A414 Grade G is available as coils or as cut lengths.