Yazan Steel is a trusted manufacturer and supplier located in Amman, Jordan, specializing in high-performance alloy steel fastening components designed for demanding service conditions. They provide Alloy Steel Grade B5 Washers, crafted to meet ASTM/ASME standards and specifically made for use with Grade B5 bolting. These washers ensure reliable load distribution, outstanding resistance to high temperatures and pressures, and maintain joint integrity over time. Yazan Steel is committed to delivering precise dimensions, controlled metallurgy, and thorough inspections to satisfy the rigorous demands of the power, petrochemical, and process industries.
Alloy Steel Grade B5 washers are made from a chromium-molybdenum alloy steel, typically featuring around 4-6% chromium and 0.45-0.65% molybdenum. This unique composition provides impressive tensile strength, good creep resistance, and excellent performance even at elevated temperatures. The washers also demonstrate appropriate hardness, oxidation resistance, and stability under sustained loads. Delivered in a heat-treated state, Grade B5 washers are designed to work seamlessly with B5 studs and nuts in high-temperature bolted joints.
| Specifications | : | ASTM A 193 ASME SA 193 |
| 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 B5 | 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 |
|---|---|---|---|---|---|
| B5 | 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 Grade B5 washers find extensive use in high-temperature and high-pressure bolting assemblies. They are commonly utilized in boilers, pressure vessels, steam pipelines, valves, and flanged joints within power plants, refineries, and petrochemical facilities. Typically paired with B5 studs and nuts, these washers ensure even load distribution and reliable joints. Thanks to their thermal stability and creep resistance, B5 washers are the go-to choice for continuous service environments where safety, durability, and long-lasting joint performance are essential.
Yazan 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 Amman, Jordan.
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