ASTM A193 B7 v s A320 L7 Stud Bolts
ASTM A193 B7 vs A320 L7 Stud Bolts ASTM A193 B7 is a Bolting specification for medium high temperature applications It is a heat treated Chromium Molybdenum steel and is considered for applications up to 450 176 Celsius 840 176 Fahrenheit ASTM A320 L7 has the same chemical and physical properties as B7 with additional Charpy V Notch tests taken at 101 176 Celsius 150 176