ASTM A193 Grade B8S Stud Bolts | UNS S21800 Specifications

ASTM A193 Grade B8S Stud Bolts

2.4952, 218, S21800

ASTM A193 Grade B8S Bolts are manufactured from Nitronic 60 in accordance with ASTM A193 specification. Torqbolt is a prominent A193 gr B8S bolt supplier in India.

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ASTM A193 Grade B8S Stud Bolts Properties

ASTM A193 Grade B8S Stud Bolts Chemical Requirements

Austenitic Steels

Grade Description and UNS Designatio Classes C Mn P S Si Cr Ni Mo Cu CbF Ti V N
ASTM A193 Grade B8S S21800 1C, 1D 0.10 7.0-9.0 0.060 0.030 3.5-4.5 16.0-18.0 8.0-9.0 . . . . . . . . . . . . . . . 0.08-0.18
Product Analysis VariationB 0.01 0.06 0.005 0.005 0.15 0.20 0.10 . . . . . . . . . . . . . . . 0.01

ASTM A193 Grade B8S 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 B8S Classes 1C and 1D All diameters carbide solution treated 95 50 35 55 271 HBW or 28 HRC

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 B8S All diameters Classes 1C and 1D All diameters carbide solution treated 655 345 35 55 271 HBW or 28 HRC

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