Stud bolt ASTM A193 B7 VS ASTM A320 L7
Stud bolt ASTM A193 B7 VS ASTM A320 L7 What is the difference between B7 and L7? 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° Celsius (840° Fahrenheit).Grade B7 is a heat-treated chromium-molybdenum (Cr-Mo) alloy steel with minimum tensile strength requirement Read more…