Yousef Steel is a reputable manufacturer and supplier based in Riyadh, Saudi Arabia, specializing in top-notch Alloy Steel Gr B7 Washers that are perfect for high-performance industrial applications. These washers are crafted to meet ASTM A193 standards, ensuring they deliver exceptional strength, durability, and reliability even in high-pressure, high-temperature, and corrosive settings. Renowned for their precision and sturdy design, Alloy Steel Gr B7 Washers guarantee secure fastening and long-lasting performance. They find extensive use in various industries, including oil & gas, petrochemical, power generation, marine, and heavy engineering, providing trustworthy solutions for critical bolted connections.
Alloy Steel Gr B7 washers are of chromium-molybdenum steel, i.e., contain iron (Fe) with the addition of carbon (C), manganese (Mn), phosphorus (P), sulfur (S), silicon (Si), chromium (Cr), and molybdenum (Mo). The mechanical properties of such washers are very good and possess high tensile strength of 125 ksi min, yield strength of 105 ksi min, and a hardness of Rockwell C35 max. They provide better wear resistance, hardness, and strength, which qualify them for heavy-duty applications under high pressure and temperature in building, automotive, and heavy machine industries. Their corrosion resistance may be improved using coatings such as zinc or galvanization.
| Specifications | : | ASTM A 194 ASME SA 194 |
| Standard | : | IS, ASTM, BS and all International Standards |
| Length | : | 3 mm to 200 mm |
| Size | : | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Type | : | Flat Washer, Lock Washer, Sealing Washer, Split Washer, Slot Washer, Machine Washer, Star Washer SPRINGS – Wire Spring & Flat Spring. |
| Alloy Steel GR 7 | C | Mn | P | S | Si | Mo | Cr |
| 0.37-0.49% | 0.65-1.10% | 0.04% | 0.04% | 0.15-0.035% | 0.15-0.25% | 0.75-1.20% |
| 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.
Alloy Steel Gr B7 Washers are commonly utilized in pressure vessels, heat exchangers, boilers, flanged joints, and high-pressure piping systems. They ensure secure, leak-proof, and vibration-resistant fastening, which is crucial for maintaining the integrity and safety of essential assemblies. These washers are particularly suited for applications that face extreme temperatures, mechanical stress, and harsh environments. With their remarkable durability, strength, and corrosion resistance, Alloy Steel Gr B7 Washers provide reliable fastening solutions for a broad spectrum of industrial and engineering projects.
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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