ASTM A193 Grade B8RA Stud Bolts
1.4565, S20910, X2CRNIMNMON25-18-6-5
ASTM A193 Grade B8RA Bolts are manufactured from Nitronic 50 in accordance with ASTM A193 specification. Torqbolt is a prominent A193 gr B8RA Bolt supplier in India.
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ASTM A193 Grade B8RA Stud Bolts Properties
ASTM A193 Grade B8RA 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 B8RA | S20910 | 1C, 1D | 0.06 | 4.0-6.0 | 0.045 | 0.030 | 1.00 | 20.5-23.5 | 11.5-13.5 | 1.50-3.00 | . . . | 0.10-0.30 | . . . | 0.10-0.30 | 0.20-0.40 |
ASTM A193 Grade B8RA 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 B8RA Class 1C | All diameters | carbide solution treated in the finished condition | 100 | 55 | 35 | 55 | 271 H |
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 B8RA All diameters Class 1C | All diameters | carbide solution treated in the finished condition | 690 | 380 | 35 | 55 | 271 HBW or 28 HRC |