Chetak Steel, based in Hyderabad, has built a solid reputation as a reliable manufacturer and supplier of top-notch Alloy Steel Gr B5 Washers, specifically crafted for high-temperature and high-pressure environments. These washers are produced in line with ASTM A193 / A194 standards, making them well-regarded for their impressive mechanical strength, thermal stability, and precise dimensions. Thanks to cutting-edge manufacturing methods and thorough quality inspections, Chetak Steel guarantees dependable performance in critical sectors like oil & gas, power generation, petrochemicals, and heavy engineering. Their dedication to quality, prompt delivery, and customer satisfaction has made them a go-to choice for alloy steel fastening components.
The Alloy Steel Gr B5 Washers are made from a chromium-molybdenum alloy steel, which provides exceptional strength and heat resistance. The typical makeup includes carbon, chromium (4.00–6.00%), molybdenum (0.45–0.65%), along with carefully controlled levels of manganese and silicon. These washers undergo heat treatment to achieve high tensile strength, outstanding creep resistance, and good toughness even at elevated temperatures. Their mechanical properties ensure effective load distribution, resistance to deformation, and a long service life in challenging operating conditions.
| 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 B5 | 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 |
|---|---|---|---|---|---|
| B5 | 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 B5 Washers are a go-to choice for many high-temperature and high-pressure industrial settings. You’ll often find them used alongside Grade B5 bolts and studs in places like boilers, heat exchangers, pressure vessels, steam pipelines, and refinery equipment. Industries such as power generation, petrochemicals, and chemical processing depend on these washers to ensure secure flange connections and reliable structural fastening. Thanks to their impressive thermal stability and mechanical strength, they’re perfect for situations that involve high temperatures and fluctuating loads, providing safety, durability, and consistent performance even in the most demanding conditions.
Chetak 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 Hyderabad, India.
Copyright 2025 Chetak Steel. All rights reserved
