Luke Steel at Houston, Houstan, offers high performance Grade 10.9 Alloy Steel Washers for critical structural and mechanical applications. The washers are heat-treated to equal the high tensile strength of 10.9 grade bolts. Luke Steel inventory facilitates quick delivery for automotive, construction, and equipment manufacturing industries.
Alloy Steel Gr 10.9 Washers are primarily made up of carbon, manganese, phosphorus, sulfur, and alloying elements like chromium and molybdenum. These washers are known for their high tensile strength, excellent fatigue resistance, and impressive hardness. Typically, they boast a tensile strength of around 1040 MPa and a yield strength of about 940 MPa, with hardness levels ranging from 32 to 39 HRC. Their sturdy composition allows them to excel under extreme stress, making them perfect for demanding industrial and structural applications.
| 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.
Used on automotive chassis, bridge structure, cranes, and heavy-duty engines, these washers ensure safe load distribution. They are needed in high-torque, high-stress joints where clamp force preservation under vibration and load cycling is a requirement.
Luke 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 Houstan, USA.
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