Size In Ready Stock
- ASTM A193 Grade B8T Bolts = M1.2 To M48
- ASTM A193 B8T Nut = M2 To M80
- A193 B8T Stud = M4 To M100
A193 B8T Material is a carbide solution treated stainless steel 321 fasteners having hardness limit of 96 HRB or 223 HBW (maximum). ASTM A193 B8T Class 1 and Class 2 for high pressure and temperature service. Rich background in the piping industry as a ASTM A193 Grade B8T bolts manufacturer, 11 years of professional experience. Grade B8TA Stud Bolts used in food processing and marine industries.
Table of Content
Supplied in March 10, 2025

Saudi Kayan Petrochemical Company

Solvac
ASTM A193 B8T Specification
Size In Ready Stock
Head Type of ASTM A193 B8T Bolts
Neck Type Of B8T Bolts
Grade B8T Bolts Threads
Head Drive of Grade B8T Class 1 Bolts
A193 B8T Class 2 Bolting Ends Types
ASTM A193 Grade B8T Threaded Rod
ASTM A193 B8T Stud Bolts
Manufacturing Process
Benefits
Testing
Application
Packaging
Origin of Raw Material
A193 B8T Material Equivalent
DIN (Germany)
American (UNS)
USA (Werkstoff No)
European (EN)
England (BS)
France (AFNOR)
GOST (Russia)
SS (Sweden)
Poland (PN)
ASTM A193 B8T Bolts Tensile Class

ASTM A193 B8T Class 1

ASTM A193 B8T Class 2
Advantages of A193 B8T Stud Bolts
Grade Symbol of ASTM A193 B8T Class 2 Hex Bolts
| Class | Grade Symbol |
|---|---|
| ASTM A193 Grade B8T Class 1 | B8T |
| ASTM A193 Grade B8T Class 2 | B8TSH |
Applications of ASTM A193 Grade B8T Studs
SA 193 B8T Class 1 Temperature
A193 B8T material maximum temperature is Up to 1200°F (650°C)
ASTM A193 B8T Bolts Chemical Composition
B8T Bolts Mechanical Properties
| Grade | Size | Hardness | Tensile Strength | Hardness | Elongation |
|---|---|---|---|---|---|
| A193 B8T CL 1 | All Size | 192 HVW | 515 MPa | 192 HVW | 30% |
| Grade B8T Class 2 | M2 to M20 | 321 HBW | 860 MPa | 321 HBW | 12% |
| ASTM A193 B8T Class 2 | M20 to M24 | 321 HBW | 690 MPa | 321 HBW | 20% |
| A193 Grade B8T Class 2 | M24 to M30 | 321 HBW | 655 MPa | 321 HBW | 25% |
| SA193 Gr B8T Class 2 | M30 to M36 | 321 HBW | 620 MPa | 321 HBW | 30% |
Recommended Nuts and Washers for A193 Grade B8T Bolts

Nut

Washer
Types Of ASTM A193 Grade B8T Fasteners
ASTM A193 Grade B8T Class 1 Hex Bolt
ASTM A193 B8T Heavy Hex Bolts
Grade B8T Stainless Steel Stud Bolts
A193 Grade B8T CL 1 Threaded Rod
ASME SA193 Grade B8T Stud Bolt with Nut
A193 B8T Socket Head Cap Screw