Aatir Steel stands out as a reliable manufacturer and supplier of Alloy Steel Grade B7M Washers right in Cairo, Egypt. We provide high-strength fastener accessories tailored for industrial, oil, gas, and mechanical applications. Our Grade B7M Washers are crafted from medium-carbon alloy steel, which is quenched and tempered to deliver exceptional tensile strength, toughness, and durability. Adhering to strict quality standards, these washers guarantee precise dimensions, outstanding mechanical properties, and resistance to wear and corrosion. Aatir Steel’s Grade B7M Washers are perfect for load distribution, preventing surface damage, and ensuring secure bolted connections in pipelines, pressure vessels, machinery, and other vital engineering applications.
Alloy Steel Grade B7M Washers are crafted from medium-carbon alloy steel, featuring a chemical composition that includes carbon (0.35–0.45%), manganese (0.60–1.10%), phosphorus (≤0.035%), sulfur (≤0.035%), chromium (0.30–0.50%), and molybdenum (0.15–0.25%). After undergoing heat treatment, they achieve a tensile strength ranging from 860 to 1000 MPa and a yield strength between 650 and 800 MPa. These washers showcase excellent hardness, toughness, and fatigue resistance while still maintaining good ductility. These characteristics ensure reliable load distribution and long-lasting performance in high-pressure, high-temperature, and heavy-load industrial settings.
| 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.
Alloy Steel Grade B7M Washers find their place in various industries that demand high-strength fastening solutions. They are frequently used in oil and gas pipelines, refineries, chemical plants, power generation equipment, and heavy machinery assemblies. These washers ensure secure and dependable load distribution, prevent surface damage, and uphold the integrity of bolted joints even under high stress and elevated temperatures. Perfect for pressure vessels, flanges, and critical machinery, Grade B7M Washers play a crucial role in ensuring operational safety, durability, and performance.
Aatir 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 Cairo, Egypt.
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