ASTM A193 B16 Stud Bolts

ASTM A320 Grade L7M STUD BOLT is a standard material specification for alloy steel bolting materials for pressure vessels, valves, flanges, and fittings for low temperature services. ASTM A320 Grade L7M is heat treated chromium molybdenum alloy steel (AISI 4140/AISI 4140H)

A193 B16 stud bolts are a type of high temperature, high strength alloy steel fastener commonly used in oil and gas, petrochemical, and power generation industries. They are made from ASTM A193 Grade B16 steel