ASTM A320 Grade B8MA Stud Bolts Properties

ASTM A320 Grade B8MA Stud Bolts Chemical Requirements

Austenitic Steels

Grade Symbol UNS Designation C, max Mn, max P, max S, max Si, max Ni Cr Mo Se Ti N Nb E + Ta
ASTM A320 B8MA S31600(316) Range,% 0.08 2.00 0.045 0.030, max 1.00 10.0 - 14.0 16.0 - 18.0 2.00 - 3.00 ... ... ... ...
Product Variation, % Over or Under 0.01 over 0.04 over 0.010 over 0.005 over 0.05 over 0.15 0.20 0.10 ... ... ... ...

ASTM A320 Grade B8MA Stud Bolts Mechanical Requirements

Austenitic Steels

Grade and Class Diameter, in. [mm] Heat Treatment Minimum Tempering Temperature, °F [°C] Tensile Strength, min, ksi [MPa] Yield Strength, min, ksi [MPa] (0.2 % offset) Elongation in 2 in. or 50 mm, min, % Reduction of Area, min, % Hardness, max
ASTM A320 B8MA Class 1A All diameters carbide solution treated in the  finished condition ... 75 [515] 30 [205] 30 50 192 HBW or 90  HRB

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