Nestled in the heart of Manama’s industrial landscape, Ahmer Steel has built a reputation as a trusted partner for high-strength components. Our focus on precision and reliability shines through in our supply of Alloy Steel Gr B7M Washers. We understand that in demanding sectors like oil and gas or chemical processing, every component must perform flawlessly under pressure. That’s why we are committed to providing washers that meet the most stringent specifications, ensuring your projects benefit from unmatched durability and corrosion resistance right here from Bahrain.
The strength of these washers comes from a specific composition, primarily chromium and molybdenum, which gives them a distinct advantage. This mix is carefully balanced to achieve excellent mechanical properties, including a high tensile strength that allows them to withstand significant clamping forces. More importantly, the “M” designation signifies a controlled hardness, ensuring they are not brittle. This combination of toughness and a degree of flexibility makes them exceptionally resistant to stress corrosion cracking, a common failure point in harsh environments.
| 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 typically find these specialized washers playing a critical role in bolted connections for high-pressure and high-temperature systems. They are indispensable in offshore platforms, refinery piping, and chemical plant equipment where exposure to sour gases or chlorides is a constant concern. By preventing the loosening of bolts and distributing load evenly, they ensure the integrity of flanges, valves, and pressure vessels. Essentially, they are a small but vital component that safeguards entire operations, providing peace of mind in the most challenging industrial applications.
Ahmer 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 Manama, Bahrain.
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