Phanuphong Steel and Plates, a top-notch manufacturer and supplier located in Bangkok, Thailand, is all about high-quality Alloy Steel Gr B7M Washers. Known for their precision engineering and impressive durability, these washers are crafted to meet international standards, ensuring reliable performance even in tough industrial settings. With a strong focus on quality and timely delivery, Phanuphong Steel makes sure that clients from various sectors—like construction, oil and gas, and heavy machinery—get products that blend strength, resilience, and corrosion resistance. Their Alloy Steel Gr B7M Washers are the go-to choice for applications that demand high mechanical strength and long-lasting reliability in critical assemblies.
These washers are primarily made from chromium-molybdenum steel, with added carbon to boost their strength. They go through heat treatment processes, such as quenching and tempering, to achieve impressive tensile and yield strength. With outstanding hardness, fatigue resistance, and toughness, they hold up well under high-pressure and high-temperature conditions. The steel composition ensures they resist deformation and excel in wear, corrosion, and oxidation, making them perfect for environments that experience mechanical stress and thermal fluctuations. Their mechanical properties guarantee long-lasting performance, providing secure and dependable fastening in crucial industrial applications.
| 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 Gr B7M Washers find their place in various industries, including petrochemical, power generation, construction, and automotive manufacturing. They play a vital role in bolted connections, evenly distributing load and preventing surface damage. Their high strength and durability make them ideal for high-pressure flanges, heavy machinery, and structural assemblies. Plus, these washers are designed to withstand elevated temperatures and corrosive conditions, ensuring stability and safety. Engineers and maintenance professionals trust Alloy Steel Gr B7M Washers for their reliability in demanding environments.
Phanuphong 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 Bangkok, Thailand.
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