Zeron Fastners
Stainless Steel Stud Bolts
Stainless Steel Stud Bolts are headless threaded fasteners designed for high-pressure and high-temperature applications, primarily used in flange connections. Zeron Fasteners manufactures premium stud bolts in grades such as SS 304, 316, 310, and 904L, conforming to international standards like ASTM A193 (Grades B8, B8M, B8T). Our stud bolts are available as fully threaded rods, double-end studs, and tap-end studs. These fasteners are vital for the oil and gas, petrochemical, and power generation industries due to their ability to provide uniform tension across flange faces while offering superior resistance to corrosion and oxidation in aggressive environments.
Related Products
Technical Specifications
| Specifications | ASTM A193, A320 / ASME SA193, SA320 |
|---|---|
| Standard | ANSI B18.2.1, DIN 975, DIN 976 |
| Size Range | M6 to M100, 1/4" to 4" Diameter |
| Length | Up to 6000mm |
| Threads | METRIC, UNC, UNF, 8UN, BSW |
Chemical Composition (ASTM A193 Grades)
| Element | Grade B8 (SS 304) | Grade B8M (SS 316) | Grade B8T (SS 321) |
|---|---|---|---|
| Chromium (Cr) | 18.0 - 20.0 | 16.0 - 18.0 | 17.0 - 19.0 |
| Nickel (Ni) | 8.0 - 11.0 | 10.0 - 14.0 | 9.0 - 12.0 |
| Molybdenum (Mo) | - | 2.0 - 3.0 | - |
| Titanium (Ti) | - | - | 5x(C+N) min |
Mechanical Properties
| Property | Class 1 (Annealed) | Class 2 (Strain Hardened) |
|---|---|---|
| Tensile Strength (min) | 515 MPa (75 ksi) | 690 - 860 MPa (100 - 125 ksi) |
| Yield Strength (min) | 205 MPa (30 ksi) | 345 - 690 MPa (50 - 100 ksi) |
| Elongation (min) | 30% | 12 - 28% |
| Hardness (Max) | 223 HBW | 321 HBW |