Welcome to Samuel Steels, your trusted partner for industrial-grade fastening solutions in Abuja. We specialize in supplying high-performance components like the Alloy Steel Grade 10.9 Washer, engineered to meet the rigorous demands of Nigeria’s dynamic construction and manufacturing sectors. Our commitment is to provide not just a product, but a guarantee of strength and reliability, ensuring your projects are built on a foundation of unwavering quality and durability that you can count on, project after project.
The composition of Alloy Steel Gr 10.9 is carefully formulated, primarily with carbon, chromium, and molybdenum, which is then subjected to a precise quenching and tempering heat treatment. This process is what gives the washer its exceptional mechanical properties, including a remarkable tensile strength and a defined yield point that firmly places it in the 10.9 performance category. This means it offers superior resistance to deformation under heavy loads, making it a consistently reliable component in high-stress 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 GR 10.9 | 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 |
|---|---|---|---|---|---|
| 10.9 | 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.
The primary use for this high-strength washer is in critical bolted joints where safety and structural integrity are non-negotiable. You will find it essential in heavy machinery assembly, the construction of robust steel frameworks, and major infrastructure projects like bridges and industrial plants. Its ability to distribute immense clamping force prevents bolt head and nut embedment, effectively safeguarding connections from loosening under vibration or dynamic loads, which is vital for the long-term stability and safety of any significant engineering undertaking.
Samuel 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 Abuja, Nigeria.
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