Alloy Steel B16 stud bolts are robust, heat-resistant fasteners crafted to meet the **ASTM A193 Grade B16** standards. These bolts are specifically designed for high-pressure and high-temperature settings, making them perfect for critical applications in sectors like **petrochemical, oil & gas, power generation, and refinery operations**. Typically, you’ll find Grade B16 stud bolts in bolted flange connections, valves, pressure vessels, and reactors. They work best when paired with ASTM A194 Grade 4 or Grade 7 nuts and come in either full-threaded or double-end stud configurations.
When it comes to their chemical makeup, ASTM A193 Grade B16 alloy steel features **carbon (0.36–0.44%)**, **chromium (0.75–1.20%)**, **molybdenum (0.15–0.25%)**, and a notable **vanadium content (0.15–0.25%)**, setting it apart from B7 grade bolts. The inclusion of vanadium boosts creep strength and performance at high temperatures. After undergoing quenching and tempering, B16 stud bolts generally achieve a **minimum tensile strength of 125 ksi (860 MPa)** and a **minimum yield strength of 105 ksi (724 MPa)**. These impressive mechanical properties allow them to perform well at service temperatures reaching up to **1000°F (540°C)**, making them a superior choice compared to B7 in high-temperature scenarios.
| Specifications | : | ASTM A 193 ASME SA 193 |
| Standard | : | DIN, ASTM, BS and all International Standards |
| Length | : | 3 mm to B16 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 B16 Stud Bolts | C | Mn | P | S | Si | Ni | Cr |
| 0.15 max | 1.00 max | 0.040 | 0.030 | 1.00 max | – | 11.50-13.50 |
| Grade | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min |
|---|---|---|---|---|---|
| B16 | Up to 2-1/2 | 125 | 105 | 18 | 50 |
| 2-5/8 – 4 | 110 | 95 | 17 | 45 | |
| 4-1/8 – 7 | 100 | 85 | 16 | 45 |
| Dia | Minimum Temperature ° F (°C) | Tensile Strength min, ksi ( MPa) | Yield Strength. min, 0.2% offset, Ksi ( MPa) | Elongation in 4D min % | Reduction of Area min % | Hardness max |
|---|---|---|---|---|---|---|
| 2 1/2″ and under | 1200(650) | 125(860) | 105(725) | 18 | 50 | 321HB or 35 HRC |
| over 21/2″ to 4″ | 1200(650) | 110(760) | 95(655) | 17 | 45 | 302HB or 33 HRC |
| over 4″ to 7″ | 1200(650 ) | 100(690) | 85(586) | 16 | 45 | 227HB or 29 HRC |
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 B16 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, heat resistance, and durability for critical industrial applications. Contact us today for all your Alloy Steel B16 Stud Bolt needs!
You’ll find Alloy Steel B16 stud bolts in **high-pressure steam systems, thermal processing units, power boilers, and turbine enclosures**, where both strength and temperature resistance are crucial. They often come with protective finishes like **black oxide, zinc plating, or PTFE coatings** to improve corrosion resistance and extend their service life. With their blend of **high strength, thermal stability, and resistance to stress relaxation**, these bolts are a dependable option for critical bolted connections that face varying pressures and temperatures.
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.
Copyright 2025 Filiz Steel. All rights reserved
