ASTM A193 B8 Stud Bolt and A194 8 Hex Nuts,SS304 Stud bolt
ASTM A193 Grade B8 Stud Bolts, ASTM A193 Grade B8 Class 1 Stud bolt, ASTM A193 Grade B8 Class 2 Stud bolt,
We can also spply ASTM A193 Grade B8 Stud Bolts in different sizes and shapes to our customers.
Stud bolts are threaded miniature rods which are used to hold together high-pressure flange connections in the oil, gas and petrochemical industry. Based on the piping system used in on-site and offshore equipment, the nuts could be of the hexagon or heavy hexagon type.
ASTM A193 Grade B8 specification covers requirements for 304/304L stainless steel bolting material with high tensile properties, for use in high temperature or high-pressure service and other special purpose applications.
We also supply A193 B8 Stud bolts and A194 Gr 8 Hex nuts
Both grade can be PTFE COATED
XYLAN/PTFE COATED A193 B8 Stud bolts and A194 Gr 8 Hex nuts
ASTM A193 B8 Stud Bolt Chemical Properties
| Grade | C | Mn | Si | P | S | Ni | Cr | Mo |
| B8 (AISI 304) | 0.08% max | 2.00% max | 1.00% max | 0.045% | 0.030% | 8.0 – 11.0% | 18.0 – 20.0% | – |
ASTM A193 B8 Stud Bolt Characteristics
| Grade | Description | Diameter | Tensile Strength, min. | Yield Strength, min. | Hardness, max. | Marking |
| ASTM A193 B8 | S30400 (304) | all | 75 | 30 | 223 HB or 96 HRB | B8 |
ASTM A193 B8 Stud Bolt Mechanical Properties
There are 2 general grade under ASTM A193 B8
ASTM A193 Grade B8 Class 1 Stud bolt, ASTM A193 Grade B8 Class 2 Stud bolt,
| ASTM A193 B8 CL1 | Class 1 Stainless steel, AISI 304, carbide solution treated. |
| ASTM A193 B8 CL2 | Class 2 Stainless steel, AISI 304, carbide solution treated, strain hardened |
Type: Stud Bolts and Nuts.
Material: A193 B8 Stud Bolt and A194 8 Hex Nuts
A193 B8 Hex Bolt and A194 8 Hex Nuts
Standard: ASME B18.2.1, ASME B18.2.2.
Bolt -Grade Identification Markings
HOW TO ORDER OUR ASTM A193 Grade B8 Stud bolt
EXAMPLE#1,
Stud bolt full Thread, SS304, 7/8″ -9UNC x 90, ASTM A193 -Gr.B8,W/2 Heavy HEX NUT A194 Grade 8.
Quantity: 120 Each
