In critical engineering and industrial environments, high tensile stud bolts are the backbone of secure, load-bearing connections. Among the most trusted and widely used variants is the A193 B7 standard stud bolt—designed to deliver exceptional performance in high-pressure and high-temperature conditions.
For industries requiring both strength and flexibility in supply, factory customized small batch production with fast delivery is now a top priority. That’s where A193 B7 stud bolts shine.
🔩 What Is an A193 B7 Stud Bolt?
ASTM A193 B7 stud bolts are made from chromium-molybdenum steel, heat-treated to achieve high tensile strength, and designed for bolting pressure vessels, flanges, and fittings in both high-temperature and high-pressure environments. These bolts are typically used with 2H heavy hex nuts and hardened washers.
✅ Key Features
- Material: Alloy steel, chromium-molybdenum (Cr-Mo)
- Grade: ASTM A193 B7
- Tensile Strength: ≥ 860 MPa (minimum)
- Thread Types: Metric or UNC (unified national coarse)
- Finish Options:
- Plain (self-color)
- Black oxide
- Zinc plated
- Hot-dip galvanized
- PTFE or Xylan coated (for corrosion resistance)
- Temperature Resistance: Up to 450°C (842°F), suitable for power plants, refineries, and chemical industries
- Standards: ASTM A193, ASME B18.2.1, DIN 976, ISO 898-1
🛠 Applications
A193 B7 stud bolts are widely used in:
- Oil & Gas Pipelines
- Petrochemical Equipment
- Pressure Vessels
- Heat Exchangers
- Steam Boilers
- Flange Connections
- Structural Steel Assemblies
They are also a go-to solution for maintenance operations where reliability and standardization are critical.
📦 Why Choose Factory Customized B7 Stud Bolts?
- Small Batch Flexibility
No need for high MOQ—ideal for urgent repairs, special projects, or short production runs. - Fast Lead Time
Streamlined production and ready raw materials mean fast turnaround and on-time delivery. - Precision Manufacturing
Full compliance with A193 standards and additional inspection/testing (mechanical, hardness, MPI, etc.) available upon request. - Threaded to Fit
Options for full thread or double-ended (stud type) bolts with customized length, chamfer, or markings.
🌍 Customization Options
- Diameter: M6–M64 / 1/4″–2-1/2″
- Length: 30mm–1000mm or customized
- Ends: Plain, chamfered, or radius chamfer
- Packaging: Bulk in bags, cartons, or export wooden cases
- Inspection Certificates: EN10204 3.1, mill test reports, third-party reports if required
🔚 Conclusion
If your application demands reliable performance in high-stress environments, ASTM A193 B7 stud bolts are the smart choice. Backed by factory customization, small order support, and fast shipping, these high tensile fasteners provide the strength you need—delivered on your schedule.
For critical connections, choose factory customized A193 B7 stud bolts—precision-engineered, performance-proven.