B7 alloy steel stud bolts for high-temperature, high-pressure flange connections — supplied with matching 2H nuts, full material test certificates.
Bharat Industrial Valve supplies B7 stud bolts to ASTM A193 — the standard alloy steel grade for high-temperature, high-pressure flange bolting in pipelines, pressure vessels, and process equipment. B7 studs are chromium-molybdenum alloy steel, quenched and tempered for strength retention well beyond what standard carbon steel can hold at elevated temperature.
| Standard | ASTM A193 Grade B7 |
|---|---|
| Material | Chromium-Molybdenum Alloy Steel |
| Size Range | M10 – M64 (custom sizes on request) |
| Coating | Black Oxide / HDG / PTFE (on request) |
| Matching Nut | ASTM A194 Grade 2H (heavy hex) |
We stock B7 studs across standard sizes with full material test certificates for traceability, paired correctly with 2H nuts to ensure the connection's rated strength holds. Get a quote for your project.