In the bustling industrial heart of Kinshasa, Yoane Steel stands as a trusted partner for robust construction and manufacturing needs. We take pride in supplying high-integrity components like our Alloy Steel Grade 8.8 Washer, engineered to meet the rigorous demands of both local and regional projects. Our commitment is to provide not just a product, but a guarantee of strength and reliability, ensuring that every bolt and assembly is secured with confidence for the long haul, thanks to our dedication to quality and local expertise.
Crafted from a specific blend of carbon and alloying elements, this washer is heat-treated to achieve its notable strength. It possesses a minimum tensile strength of 800 MPa, with a yield strength that ensures it can handle significant loads without deforming. This Grade 8.8 classification signifies a consistent balance of durability and toughness, allowing it to perform reliably under high stress and vibration, making it a fundamentally sturdy component in any fastened joint.
| 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.
The primary role of this washer is to distribute the load of a bolt or nut, preventing damage to the connected surfaces and ensuring the fastener stays tightly secured. You’ll find it essential in the construction of heavy machinery, structural steelwork, and vital infrastructure projects where failure is not an option. It’s also indispensable in the automotive industry, mining equipment, and for any application involving significant vibration or dynamic loads, providing a simple yet critical layer of security and longevity to the entire assembly.
Yoane 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 Kinshasa, Congo.
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