Located in the heart of Addis Ababa, Desta Steel stands as a trusted partner for industry, proudly manufacturing and supplying high-integrity components like the Alloy Steel Gr B7M Washer. We understand that the success of your most demanding projects hinges on the reliability of every single part, which is why we dedicate ourselves to producing washers that meet rigorous international standards, ensuring strength and durability you can count on right here in Ethiopia.
The composition of the Alloy Steel Gr B7M Washer is precisely engineered for resilience, primarily based on chromium and molybdenum, which gives it a distinct advantage. This specific alloy mix is key to its excellent mechanical properties, offering an impressive tensile strength and, most importantly, outstanding resistance to sulfide stress cracking. This makes it far superior to standard options in challenging environments where hydrogen sulfide is present, providing a critical layer of safety.
| Specifications | : | ASTM A 193 ASME SA 193 |
| 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 B7M | C | Mn | P | S | Si | Cr | Mo |
| 0.37-0.49 | 0.65-1.10 | 0.035 Max | 0.04 Max | 0.15-0.35 | 0.75-1.20 | 0.15-0.25 |
| Grade | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min |
|---|---|---|---|---|---|
| B7M | 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 find the Alloy Steel Gr B7M Washer hard at work in some of the toughest industrial settings imaginable. It is absolutely essential in oil and gas pipelines, wellheads, and refinery equipment where exposure to corrosive elements is a constant challenge. Its primary role is to work alongside high-strength bolts in flanged connections, ensuring a secure, leak-proof seal that maintains the integrity of the entire assembly under immense pressure and in demanding conditions.
Desta 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 Addis Ababa, Ethiopia.
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