A193 B8MCL2 外六角螺栓

ASTM A193 specification covers alloy steel and stainless steel bolting material
for pressure vessels, valves, flanges, and fittings for high temperature or high
pressure service, or other special purpose applications.Several grades are
covered, including ferritic steels and austenitic stainless steels designated B5, B8,B8M
and so forth. Selection will depend upon design, service conditions, mechanical properties, and high temperature characteristics.Material according to
ASTM A193 B8Mis often available in national coarse (UNC) thread pitches,
if being used in traditional applications, threads are specified 8 threads
per inch (tpi) for diameters above one inch.

ASTM A193, Grade B8M Class 1Stainless steel, AISI 316, carbide solution treated.
Stainless steel, AISI 316, carbide solution treated.
ASTM A193, Grade B8 Class 2Stainless steel, AISI 304, carbide solution treated,strain hardened