Alloy Steel B7 stud bolts are robust, threaded fasteners crafted from chromium-molybdenum steel that meets ASTM A193 Grade B7 standards. These stud bolts are specifically engineered for high-pressure and high-temperature applications, making them a go-to option in sectors like oil & gas, petrochemical, power generation, and construction. You’ll often find B7 stud bolts in bolted flange connections, pressure vessels, valves, and heat exchangers, where they deliver dependable clamping force and durability in critical situations. They come in both full-threaded and double-ended designs and are frequently paired with ASTM A194 Grade 2H or Grade 7 nuts.
The chemical makeup of Alloy Steel B7 features carbon (0.37–0.49%), chromium (0.75–1.20%), and molybdenum (0.15–0.25%), which together provide outstanding hardenability, tensile strength, and resistance to corrosion and high temperatures. After undergoing quenching and tempering, B7 stud bolts reach a minimum tensile strength of 125 ksi (860 MPa) and a minimum yield strength of 105 ksi (724 MPa). These impressive mechanical properties make them suitable for environments reaching up to 450°C (850°F). For even tougher conditions, B7M or L7 grades can be specified based on temperature and impact resistance needs.
| Specifications | : | ASTM A 193 ASME SA 193 |
| Standard | : | DIN, ASTM, BS and all International Standards |
| Length | : | 3 mm to B7 mm |
| Size | : | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Type | : | Hex Head Bolts, Square Bolts, U bolts, Eye bolts, T bolt, Hex Bolt, Lag Bolts, Counter sunk Bolts |
| Alloy Steel B7 Stud Bolts | C | Mn | P | S | Si | Cr | Mo |
| 0.37-0.49 | 0.65-1.10 | 0.035 Max | 0.04 Max | 0.15-0.35 | 0.75-1.20 | 0.15-0.25 |
| Grade | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min |
|---|---|---|---|---|---|
| B7 | Up to 2-1/2 | 125 | 105 | 16 | 50 |
| 2-5/8 – 4 | 115 | 95 | 16 | 50 | |
| 4-1/8 – 7 | 100 | 75 | 18 | 50 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Jaxon Steel is a trusted manufacturer and supplier of high-quality Alloy Steel B7 Stud Bolts in Istanbul, Turkey. We specialize in premium steel products, including Alloy Steel, Carbon Steel, Mild Steel, and Galvanized Steel, with a strong focus on Carbon Steel Sheets and Plates. Our extensive inventory also includes Pipes, Tubes, Flanges, Forged Fittings, and Bars. Committed to fast delivery and exceptional customer service, we use only the finest raw materials to ensure superior strength, durability, and performance for critical industrial applications. Contact us today for all your Alloy Steel B7 Stud Bolt needs!
Alloy Steel B7 stud bolts are commonly utilized in flange bolting, pipeline assemblies, pressure equipment, and structural joints. Their sturdy design and heat-treated finish make them ideal for bolted connections that face vibration, thermal cycling, and heavy mechanical loads. Often available with protective coatings like black oxide, zinc plating, or PTFE, B7 stud bolts can also be tailored for improved corrosion resistance. Their reliable performance, broad availability, and adherence to international standards make them a trusted choice for critical fastening in demanding applications.
Filiz Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Istanbul, Turkey.
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