ASTM A193 Grade B8M

ASTM A193 grade B8M is extensively implemented in chemical and petroleum construction applications. This material specification includes fasteners composed of corrosion-resistant 316 stainless steel. These are used in making bolts, studs, bolts threaded rods, and others, perfect for high temperatures and high tensile. This hardened and heat-treated authentic steel grade is further divided into two classes.

A193 Grade B8M

B8M Stainless steel, AISI 316, 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 B8M (AISI 316)
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 2.00 - 3.00%

Compatible hardware

Bolt Grade Nut Washers
B8M A194 Grade 8M SS316