Phanuphong Steel and Plates, a reputable manufacturer and supplier located in Bangkok, Thailand, is dedicated to providing top-notch Alloy Steel Gr 10.9 Washers. With a strong focus on excellence and precision engineering, this company ensures that their washers meet international industrial standards, guaranteeing durability even in the toughest conditions. These washers play a crucial role in enhancing the reliability of fastening systems, boasting impressive strength and resistance to wear and tear. Phanuphong Steel and Plates caters to a variety of industries, delivering high-quality Alloy Steel Gr 10.9 Washers for construction, automotive, power generation, and heavy engineering projects.
The Alloy Steel Gr 10.9 Washers are crafted from medium carbon steel, enriched with elements like manganese, chromium, and molybdenum to boost their mechanical properties. They undergo heat treatment to achieve remarkable tensile strength and toughness. With outstanding yield strength, a tensile strength of around 1040 MPa, and hardness levels between 32–39 HRC, these washers are built to handle heavy loads. Their unique composition provides resistance to fatigue, wear, and deformation, making them perfect for high-stress environments while ensuring they maintain their structural integrity over an extended service life.
| 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.
These washers are widely utilized in automotive assemblies, especially in engines, transmissions, and suspension systems, where high tensile strength is essential. In the construction sector, they are employed in steel structures, bridges, and heavy machinery to ensure secure and long-lasting fastening. Additionally, they are used in power generation plants, shipbuilding, mining equipment, and aerospace engineering, where reliability under dynamic loads is vital. Their durability against wear, stress, and vibration makes them ideal for critical applications, ensuring safety, stability, and long-lasting performance across a broad spectrum of industries.
Phanuphong 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 Bangkok, Thailand.
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