Zeron Fastners
SS 310 Stud Bolts
A SS 310 Stud Bolt is a straight rod threaded on both ends, or continuously threaded along its entire length, designed for secure flange connection and high-temperature anchoring. Made from a high-chromium and high-nickel austenitic stainless steel (UNS S31000), this fastener provides excellent resistance to oxidation in continuous service up to 2000°F (1093°C). The high alloy content is particularly effective against thermal cycling and hot corrosion, which are common issues in industrial furnaces, recuperators, and power generation boilers. Stud bolts are typically used with two SS 310 nuts and washers to ensure maximum clamping force and sealing integrity in critical joints. Zeron Fasteners specializes in manufacturing and supplying durable SS 310 Stud Bolts that meet stringent specifications like ASTM A193 B8 (for high-pressure/high-temperature service), guaranteeing reliability in extreme thermal and corrosive environments.
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SS 310 Stud Bolts Chemical Composition
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.25 |
| Manganese (Mn) | 2.00 |
| Silicon (Si) | 1.50 |
| Phosphorus (P) | 0.045 |
| Sulfur (S) | 0.030 |
| Chromium (Cr) | 24.0 – 26.0 |
| Nickel (Ni) | 19.0 – 22.0 |
Note: The "310S" grade specifies Carbon max. at 0.08%, commonly supplied for better weldability.
SS 310 Stud Bolts Mechanical Properties
| Property | Value (Typical) |
|---|---|
| Tensile Strength | 515 MPa 75,000 psi |
| Yield Strength (0.2% Offset) | 205 MPa 30,000 psi |
| Elongation | 40% |
| Hardness | 217 HB 95 HRB |
Based on typical values for SS 310 (UNS S31000) fasteners.