ASTM A193 Grade B8MLCuN Stud Bolts | UNS S31254 Specifications

ASTM A193 Grade B8MLCuN Stud Bolts

DIN 1.4547, S31254, X1CRNIMOCUN20-18-7

ASTM A193 Grade B8MLCuN Bolts are manufactured from 254 Smo Stainless Steel in accordance with ASTM A193 specification. Torqbolt is a prominent A193 gr B8MLCuN bolt supplier in India.

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ASTM A193 Grade B8MLCuN Stud Bolts Properties

ASTM A193 Grade B8MLCuN 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 B8MLCuN S31254 1A, 1B, 1D, 2 0.020 1.00 0.030 0.010 0.80 19.5-20.5 17.5-18.5 6.0-6.5 0.50-1.00 . . . . . . . . . 0.18-0.25
Product Analysis VariationB 0.005 0.03 0.005 0.002 0.05 0.20 0.15 0.10 . . . . . . . . . . . . 0.02

ASTM A193 Grade B8MLCuN 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 B8MLCuN Classes 1B and 1D All diameters carbide solution treated 80 35 30 40 223 HBW or 96 HRBC

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 B8MLCuN All diameters Classes 1B and 1D All diameters carbide solution treated 550 240 30 40 223 HBW or 96 HRBC

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  • Below Table resemblles Bolting Components with Strain Hardened Condition
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