ASME SA193 B16, Threaded Rod

American Standard ASME SA-193/SA-193M B16 High Temperature Bolt, B16 Full Thread Stud, SA193-B16 Full Thread Stud, ASME SA193-B16 Full Thread Stud

B16 Purpose: Alloy steel and stainless steel bolt materials designed for high-temperature pressure vessels, valves, flanges, and pipe fittings.

The chemical composition of SA 193B7M grade bolt material mirrors that of B7 grade, but it undergoes quenching and tempering to achieve lower hardness. Its tensile strength is also lower than that of B7 grade bolts. Typically utilized in stress corrosion cracking environments and floating head heat exchangers.

SA-1942HM nuts resemble 2H nuts and are recommended for stress corrosion cracking environments.

SA-193B16 grade bolts find primary use in high-temperature applications ranging from 400°C to 595°C. They are crafted from chromium molybdenum vanadium alloy steel.

B16 grade bolts exhibit mechanical strength akin to B7 grade, yet they maintain fastener strength at high temperatures with reduced relaxation. Two main levels of nuts can be paired with B16 grade bolts: level 4 and level 7, both chromium molybdenum steel nuts subjected to heat treatment suitable for conditions below zero degrees Celsius, with a minimum temperature of -48°C. It's important to note that B16 grade bolts typically require use with grade 7 (or 4) nuts due to their similar characteristics. American-made ASME SA193-B16 full thread stud.