Stud BOLT ASTM A193 B7 VS ASTM A193 B7M

Stud bolts manufactured to ASTM A193 Grade B7 and B7M are widely used in high-temperature and high-pressure applications such as refineries, chemical plants, and power generation facilities. While these grades share similarities, they have important differences in mechanical properties, hardness, and application suitability.So when engineers select the material for stud bolt,they should consider which one is more suitable for the projects