ASTM A193 Grade B8

The standard material specification for ASTM A193 grade B8 includes steel fasteners composed of authentic stainless steel and resistant to corrosion. They are primarily used in sewage treatment, chemical construction applications, wind farms, and shipbuilding.

A193 Grade B8

B8 Stainless steel, AISI 304, carbide solution treated.

Mechanical properties

Size Tensile ksi, min Yield ksi, min Elong %, min RA % min HBW Rockwell
All 75 30 30 50 223 Max 96 HRB max

Chemical properties

Element B8 (AISI 304)
Carbon 0.08% max
Manganese 2.00% max
Phosphorus, max 0.045%
Sulfur, max 0.03%
Silicon 1.00% max
Chromium 18.0 - 20.0%
Nickel 8.0 - 11.0%
Molybdenum -

Compatible hardware

Bolt Grade Nut Washers
B8 A194 Grade 8 SS304