ASTM A193 B8M Stud Bolts with A194 8M Hex nuts

ASTM A193 Grade B8 and Grade B8M are both stainless steel Grade for stud bolts used for high-temperature and high-pressure applications. However, Just like the difference between SS316 and SS304,the main difference between them are from the material composition and corrosion resistance.

ASTM A193 B8M is a stainless steel grade for stud bolts, primarily used in high-temperature, high-pressure, and corrosive environments like chemical processing, marine, and offshore industries. Grase B8M Bolt is made of SS316 round bar.Which offers a superior corrosion resistance compared to B8 (304 stainless steel).