In the heart of Kinshasa’s industrial landscape, Yoane Steel has built a reputation as a trusted partner for high-grade components. We understand the critical demands of Congo’s growing infrastructure and energy sectors, which is why we specialize in providing robust materials like the Alloy Steel Gr B7 Washer. Sourced and supplied with an unwavering commitment to quality, this product is engineered to meet the rigorous challenges of heavy-duty applications, ensuring reliability and safety for projects that depend on superior performance under extreme pressure and temperature conditions.
The strength of the Alloy Steel Gr B7 Washer comes from its carefully balanced composition, primarily chromium and molybdenum. This specific blend gives the washer its distinct character, allowing it to be heat-treated to achieve a high tensile strength and impressive hardness. It’s this robust mechanical nature that allows it to maintain its integrity, providing a reliable, spring-like force that remains consistent even when faced with severe vibration, heavy loads, and the significant stress that can cause ordinary washers to fail prematurely.
| 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 7 | 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 |
|---|---|---|---|---|---|
| B7 | 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 these washers playing a crucial role in high-pressure environments, such as within the flanges and valves of oil and gas pipelines, or securing critical components in power generation plants. They are essential for creating a tight, lasting seal in refinery equipment and high-temperature boilers. Essentially, any application where standard fasteners aren’t enough calls for the added security of a Gr B7 Washer. Its ability to resist relaxation under stress makes it a fundamental component for ensuring the long-term safety and integrity of industrial assemblies across the Congo.
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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