ASTM A193 Grade B8A Stud Bolts Properties

ASTM A193 Grade B8A Stud Bolts Chemical Requirements

Austenitic Steels

Grade Description and UNS Designation Classes C Mn P S Si Cr Ni Mo Cu CbF Ti V N
ASTM A193 Grade B8A 304, S30400 1, 1A, 1D, 2 0.08 2.00 0.045 0.030 1.00 18.0-20.0 8.0-11.0 . . . . . . . . . . . . . . . . . .
Product Analysis VariationB 0.01 0.04 0.010 0.005 0.05 0.20 0.15 . . . . . . . . . . . . . . . . . .

ASTM A193 Grade B8A Stud Bolts Mechanical Requirements

Austenitic Steels (Inch)

Grade Diameter,
in.
Heat TreatmentB Tensile Strength,
min, ksi
Yield Strength, min,
0.2 % offset, ks
Elongation in 4 D,min Reduction of Area, min Hardness,
max
ASTM A193 Grade B8A Class 1A All diameters carbide solution treated in the finished condition 75 30 30 50 192 HBW or 90 HRB

Austenitic Steels (Metric)

Grade Class ,
mm
Diameter Heat TreatmentB Tensile Strength,
min,MPa
Yield Strength, min,
0.2 % offset, MPa
Elongation in 4 D,min % Reduction of Area, min % Hardness,
max
ASTM A193M Grade B8A Class 1A All diameters carbide solution treated in the finished condition 515 205 30 50 192 HBW or 90 HRB

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