B7 STUD BOLTS – ASTM A193

🔩 B7 Stud Bolts for High-Temperature & High-Pressure Applications

ASTM A193 Grade B7 Stud Bolts are high-strength, fully threaded bolts designed for use in pressure vessels, valves, flanges, and piping systems operating under extreme temperatures and pressures. Manufactured from quenched and tempered alloy steel, B7 stud bolts deliver exceptional tensile strength, hardness, and durability.

At National Fasteners, we manufacture and supply ASTM A193 B7 stud bolts in a wide range of sizes, lengths, and coatings, ensuring consistent performance in critical industrial environments such as oil & gas, petrochemical, and power generation.

🔧 Product Specifications:

• Standard: ASTM A193 / ASME SA193

• Grade: B7 (Alloy Steel, Quenched & Tempered)

• Diameter Range: M10 TO M72 (1/2″ TO 3″ INCH)

• Length Range: As per customer requirement

• Thread Type: UNC / UNF / Metric Coarse

• Thread Tolerance: 2A (Inch) / 6g (Metric)

• Material: Medium Carbon Alloy Steel (AISI 4140 / 4142)

• Surface Finishes Available:

  • Zinc Plated (Clear / Yellow)

  • Hot-Dip Galvanized (HDG)

  • Black Oxide

  • Phosphate Coated

  • PTFE / Xylan Coated

  • Self-Color (Plain)

⚙️ Key Features of ASTM A193 B7 Stud Bolts:

• High tensile strength and hardness for demanding applications

• Excellent performance at elevated temperatures and pressures

• Manufactured from quenched and tempered alloy steel

• Compatible with ASTM A194 Grade 2H or Grade 7 nuts

• Available in various protective coatings for corrosion resistance

• Strict compliance with ASTM and ASME specifications

🔩 Common Applications:

• Flange bolting in oil & gas pipelines

• Petrochemical and chemical processing plants

• Steam and gas turbines

• Power generation facilities

• High-pressure vessel fabrication

• Refineries and offshore platforms

💡 Why Choose National Fasteners for B7 Stud Bolts?

✅ ISO 9001:2015 Certified Manufacturing
🧪 Full Material Traceability with mill test certificates
⚙️ Custom Sizes, Coatings, and Thread Types available
🏭 High-Volume Production for bulk and urgent orders
🌍 Global Export Experience with timely delivery

📞 Request a Quote or Sample

Looking for premium-quality ASTM A193 Grade B7 Stud Bolts?
Contact us for competitive pricing, bulk availability, and customized solutions.

👉 Request a Quote | 📧 sales@nationalfasteners.in | 📞 +91 70093-08799