DIN976-DIN976 Bolts stud bolt A193 B7 stud bolt alloy bolt
ASTM A193 Grade B7 Heavy Duty Hex Head Bolts are high strength fasteners made from heat treated alloy steel AISI 4140/4142 quenched and tempered.
Dimensions are governed by ASME B18.2.1. ASTM A193 Grade B7 consists of chromium and molybdenum as the main elements in the alloy. The material is quenched and heat treated to improve its mechanical properties. ASTM A193 Grade B7 stud bolts are the most commonly used bolts in different construction equipment. A193 B7 material is a standard material specification for chromium-molybdenum alloy steel fasteners for high strength, high temperature, and special purpose applications. SA 193 B7 material is widely used in fastener specifications, commonly found in bolted connections, pipes, valves, fittings, flanges and pressure vessels.