Yousef Steel, a reputable steel manufacturer and supplier located in Riyadh, Saudi Arabia, provides top-notch **Alloy Steel ASTM A193 Grade 7 stud bolts** that are designed for dependable performance in **low-temperature, high-pressure** environments. These stud bolts find extensive application in vital sectors like **oil & gas, petrochemical, cryogenic processing**, and **power generation**, where durability and strength in sub-zero conditions are essential.
**Grade 7** stud bolts are crafted from **chromium-molybdenum-vanadium alloy steel**, sharing a similar makeup with Grade B7 but specifically **heat-treated and tested for low-temperature use**. They retain impressive **mechanical properties even at temperatures as low as -101°C (-150°F)**. With a **minimum tensile strength of 860 MPa** and a **yield strength of 720 MPa**, they also boast enhanced **impact resistance and ductility**.
| 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 | 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.
Engineered to meet **ASTM A193 standards**, these stud bolts are perfect for **flange bolting**, **pressure vessel connections**, and **valve assemblies** that operate in cold service settings. They are typically used alongside **ASTM A194 Grade 7 or Grade 4 nuts** to ensure compatibility and optimal performance.
Alloy Steel Gr 7 Stud Bolts are heavily used in high-temperature and high-pressure services due to their strength, ruggedness, and corrosion resistance. Oil & gas, petrochemical, power plants, and chemical processing plants utilize them as a routine procedure, where they secure major equipment like flanges, valves, heat exchangers, and pressure vessels.Their superior mechanical properties make them suitable for steam turbines, pipelines, and refinery units that are under extreme conditions. Moreover, these stud bolts are employed in marine, aerospace, and heavy machinery applications to provide structural integrity and reliability in harsh environments. Their strength makes them a necessity for industrial fastening requirements.
Yousef 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 Riyadh, Saudi Arabia.
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