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Pengkumta Fasteners, located in Bangkok, Thailand, has earned a solid reputation as a reliable manufacturer and supplier of Stainless Steel 446 Washers. These washers are crafted to deliver top-notch fastening solutions that are not only strong and durable but also excel in resisting high-temperature oxidation and corrosion. With a focus on precision and rigorous quality control, these washers ensure dependable performance even in the toughest industrial settings. You’ll find Stainless Steel 446 Washers from Pengkumta being widely utilized in sectors like power generation, chemical processing, petrochemicals, and marine industries, where heat resistance, durability, and long-term reliability are crucial.
Made from a ferritic stainless steel alloy that boasts high chromium content and low carbon, Stainless Steel 446 Washers offer remarkable oxidation resistance at elevated temperatures and outstanding corrosion resistance in environments rich in chlorides and acids. They also provide impressive tensile strength, toughness, and dimensional stability, making them perfect for extreme conditions. These mechanical and chemical properties make them a go-to choice for high-temperature and corrosive applications.
| Grade | C | Mn | Si | P | S | Cr | MO | Ni | N | |
| 446 | min. | – | – | – | – | – | 23.0 | – | – | 0.10 |
| max. | 0.20 | 1.5 | 0.75 | 0.040 | 0.030 | 30.0 | 0.50 | 0.25 | ||
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 446 | 485 | 275 | 20 | 92 | 201 |
SS 446 Washer Specifications | ||
| Specifications | : | ASTM A193 ASME SA193 |
| Standard | : | DIN, ASTM, BS and all International Standards |
| Length | : | M02 to M33 |
| Size | : | 3 mm to 200 mm |
| Type | : | Flat Washer, Lock Washer, Sealing Washer, Split Washer, Slot Washer, Machine Washer, Star Washer SPRINGS – Wire Spring & Flat Spring |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
Stainless steel 446 washers are used at high temperatures because of their excellent oxidation resistance and durability. It is ideal for environments up to 1500°F (815°C) and is used in the automotive, aerospace and petrochemical industries. These washers are important for maintaining the integrity of bolted joints, preventing leaks, and ensuring long-term performance under extreme conditions. The high temperature and corrosion resistance make them suitable for use in exhaust systems, industrial incinerators and high-temperature process equipment.
You’ll see Stainless Steel 446 Washers being extensively used in power plants, boilers, heat exchangers, and furnace assemblies, where they frequently face high temperatures and corrosive environments. They’re also essential in chemical and petrochemical processing equipment, marine and offshore structures, and industrial machinery that demands long-lasting, corrosion-resistant fasteners. Plus, these washers play a vital role in structural frameworks and high-temperature processing units, delivering reliable strength, durability, and protection against scaling, corrosion, and wear in challenging operating conditions.
Pengkumta Fasteners is a leading manufacturer and supplier of high-quality fasteners in Bangkok, Thailand, with over 8 years of experience serving global industries.
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