Yousef Steel, a reputable manufacturer and supplier located in Riyadh, Saudi Arabia, provides durable and high-performance **Alloy Steel Grade 8.8 washers**. These washers are specifically designed to support high-tensile bolting applications across various sectors, including **automotive, construction, heavy machinery, structural engineering**, and **industrial assembly**. They are crafted to create secure, stable joints by effectively **distributing load**, **preventing loosening**, and **protecting mating surfaces**.
Made from **medium carbon alloy steel** and **heat-treated** to meet **Grade 8.8 mechanical standards**, these washers boast a **minimum tensile strength of 800 MPa** and a **yield strength of 640 MPa**. They are perfectly suited for use with **Grade 8.8 bolts and screws**, ensuring reliable performance even in **high-stress** and **vibration-prone environments**.
| 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 8.8 | C | Mn | P | S | Si | Ni | Cr |
| 0.40% min | 1.00% max | 0.040% | 0.050% | 0.40% max | – | – |
| Specification | Material | Nominal Size, In. | Tempering Temp. °F | Proof Load Stress, ksi | Hardness Rockwell | See Note | |
|---|---|---|---|---|---|---|---|
| Min | Max | ||||||
| ASTM A194 Grade 8.8 | Medium Carbon Steel, Quenched and Tempered | 1/4 – 4 | 1000 | 150 | 159 | 237 | 1,2,3 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Grade 8.8 alloy steel washers are typically used in construction, automotive, and industrial applications due to their strength and resistance. They evenly distribute loads and prevent surface damage and loosening of bolted joints. Structural frameworks, heavy machinery, bridges, and automotive assemblies with high tensile strength requirements are some of the most common uses. These washers also find importance in ensuring secure fastening in vibration-prone applications, including railway and aeronautical industries. They are also used in power plants, oil and gas pipes, and mining machinery, where stress and wear resistance is required for good long-term performance and safety.
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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