From the industrial heart of Hamilton, Latham Steel has built a reputation as a trusted manufacturer and supplier, specialising in high-performance components like the Alloy Steel Grade 10.9 Washer. We understand that the integrity of a large-scale project often rests on the smallest of details, which is why our focus is on delivering washers that provide unwavering reliability and strength, forming a critical part of robust and secure bolted assemblies throughout New Zealand and beyond.
The Grade 10.9 washer is crafted from a carefully balanced alloy composition, primarily steel with precise additions of elements like chromium and boron. This specific formulation is what gives the washer its exceptional mechanical properties, including a formidable tensile strength and a high proof load. Essentially, it’s designed not to yield under immense pressure, maintaining a secure clamp force and preventing the bolt from embedding into the connected materials, which is crucial for long-term joint integrity.
| 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.
You’ll typically find our Alloy Steel Grade 10.9 washers at work in situations where failure is not an option. They are essential in heavy machinery, structural steelwork, and demanding engineering projects like bridge construction or high-rise buildings. Any application that involves significant dynamic loads, vibrations, or requires a high preload benefits greatly from the superior strength and bearing surface these washers provide, ensuring that critical connections remain secure and safe over their entire service life.
Latham 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 Hamilton, New Zealand.
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