The ASTM A193 Grade B7 Hex Bolt acts as a critical component for modern industrial infrastructure. Initially, our factory crafts these fasteners from premium chromium-molybdenum steel. Following this step, the material undergoes rigorous quenching and tempering processes to achieve superior mechanical properties. Consequently, industry experts globally recognize and specify these items for high-temperature and high-pressure service. Ultimately, these bolts ensure reliable and secure connections in critical industrial piping, pressure vessels, and chemical processing equipment.
Product Parameter (Specification)
| Standard | ASTM A193 / ASME SA193 | Material | Chromium-Molybdenum Alloy Steel (Cr-Mo) |
| Surface Treatment | Plain, Zinc Plated, Hot Dip Galvanized (HDG), Black Oxide, PTFE/Xylan coated, Cadmium | Shank | Full thread, Partial thread |
| Grade | B7 | Size | 1/4″ – 4″ (Metric: M6 – M100) |
| Unite | Piece,KGS,TON | Packing | Bulk cartons with pallet, small boxes in cartons with pallet |
Product Application
Various global sectors heavily utilize ASTM A193 B7 Hex Bolts today. Specifically, heavy industry, Oil & Gas, chemical processing, power generation, and marine infrastructure depend on their strength. Furthermore, these reliable fasteners excel wherever extreme pressure and high continuous temperatures exist.
ASTM A193 B7 Hex Bolt Application Scenario Table
| Industry Sector | Specific Scenario | Recommended Class | Core Usage Considerations |
|---|---|---|---|
| Oil & Gas | Flanges, pipelines, and offshore platforms | ASTM A193 B7 + A194 2H Nuts | Requires exceptional tensile strength and resistance to extreme pressure and corrosive elements. |
| Chemical Processing | Pressure vessels, acid storage tanks, valves | ASTM A193 B7 (with PTFE/Xylan coating) | Focus on resistance to aggressive chemicals and preventing chemical degradation in high heat. |
| Power Generation | Steam turbines, boiler systems, heat exchangers | ASTM A193 B7 | Must withstand continuous thermal cycling and high-temperature operating conditions. |
| Marine Industry | Port infrastructure, high-stress shipbuilding components | ASTM A193 B7 (HDG or Zinc Plated) | Primary need is structural integrity combined with long-term rust prevention in saline environments. |
| Water Treatment | Industrial pumps, desalination piping systems | ASTM A193 B7 | Constant exposure to moisture and pressure requires durable performance and anti-corrosion coatings. |
How to Order / Quick Specs Checklist for Inquiry
To help our sales team identify your specific fastener needs quickly, please include the following specifications in your inquiry. Because accurate details allow us to provide a precise quote, we need the following information:
- Standard & Grade: (e.g., ASTM A193 B7)
- Dimensions (Diameter x Length): (e.g., 1″ – 8 TPI x 4″)
- Thread Type: (Full thread or Partial thread)
- Surface Treatment: (e.g., Hot Dip Galvanized)
- Order Quantity: (Specify in Pieces, KGS, or TONs)
- Specific Application (Optional): Finally, let us know your industry so we can recommend the best coating or mating nuts (like A194 2H).
Ready to secure your project? Contact QISHENG today with your specific requirements. Subsequently, our dedicated team will quickly provide you with tailored fastening solutions and highly competitive B2B pricing.
