B7 Stud Supplier in Chennai
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.
Specifications
| 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) |
Applications
- Pipeline flange connections
- Pressure vessel bolting
- Valve body-to-bonnet connections
- High-temperature process equipment
Why Source From Us?
Bharat Industrial Valve supplies ASTM A193 Grade B7 studs for specification-led flange and process bolting requirements. Confirm the diameter, length, coating, matching nut grade and documentation against the quotation before ordering.
Project Enquiry & Related Fasteners
For a B7 stud quotation, send the diameter, length, coating or finish, required nut grade, quantity and delivery location. For other specified bolting, see our ASTM Stud, Threaded Rods and High Tensile Fasteners. Request a project quote.
B7 Stud Buying Guide: Threads and Grade Selection
ASTM A193 Grade B7 stud bolts are specified for selected pressure-piping, flange and process-equipment joints. Confirm the equipment or piping code, required grade, nominal diameter, overall stud length, thread series and pitch from the approved drawing or bolting schedule. B7 is an alloy-steel grade, but allowable application temperature, strength and coating suitability depend on the relevant design specification; do not assume it is interchangeable with low-temperature ASTM A320 L7.
All-Thread B7 Studs and Matching Nuts
For B7 all-thread studs, explicitly state whether full-length threading or a particular unthreaded section is required. The thread system may be metric, UNC or a project-specified series such as 8UN where applicable; provide the exact thread details instead of ordering by diameter alone. ASTM A194 Grade 2H heavy hex nuts are commonly specified with B7 bolting, but nut material, grade, finish and quantity must match the approved joint specification.
Details Needed for a B7 Stud Quotation
- ASTM A193 Grade B7 designation, diameter, overall length, thread series and pitch
- Full-thread or other drawing-specific configuration and quantity
- Number, grade and size of matching nuts and any washer requirements
- Required finish or coating, service conditions and any coating compatibility restrictions
- Inspection, traceability or material-test documentation if required by the project
Compare ASTM A320 L7 Studs for specified low-temperature duties and other ASTM Studs for different project grades. Send your B7 stud BOQ for a Chennai supplier quotation. Exact dimensions, coating, documentation and availability are confirmed against the quoted material.
