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Punit Fasteners, based in Delhi, India, stands out as a top manufacturer and supplier of high-performance stainless steel fasteners, including Stainless Steel 310 and 310S washers. Known for their precision engineering and unwavering commitment to quality, Punit Fasteners creates fastening solutions that can handle extreme temperatures and corrosive environments. The Stainless Steel 310/310S washers are perfect for high-heat industrial applications, providing exceptional resistance to oxidation and scaling. With state-of-the-art manufacturing facilities and rigorous quality control, Punit Fasteners caters to vital sectors like petrochemical, power generation, and thermal processing, both in India and on the international stage, delivering reliable and durable fastening products.
Stainless Steel 310/310S are high-temperature austenitic alloys made up of 24–26% chromium and 19–22% nickel. The 310S variant has a lower carbon content compared to 310, which enhances its weldability and minimizes the risk of carbide precipitation. These washers boast impressive mechanical properties, including a tensile strength of around 520 MPa, yield strength close to 205 MPa, and an elongation of about 40%. They maintain their structural integrity even at elevated temperatures and exhibit good oxidation resistance, making them ideal for thermal and high-stress applications in harsh environments.
| Grade | Stainless Steel 310, 310S |
| Specifications | ASTM A193 / ASME SA193, DIN, ASTM, BS and all International Standards |
| Length | 3mm to 200mm |
| Size | M 02 to M 160, Custom Sizes |
| Types | Star Washer, Flat Washer, Lock Washer, Slot Washer, Machine Washer, Sealing Washer, Split Washer, Dome Tooth Washer, Countersunk Washer, Tab Washers, Spherical Washer, Square Washer, Spring Washer, Round Washers, Square Washers etc |
| Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 310/310S | 7.9 g/cm3 | 1402 °C (2555 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 40 % |
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 310/310S washers find their place in applications that demand resistance to extreme heat and thermal cycling. You’ll commonly see them in furnace linings, heat exchangers, boilers, and incinerators. These washers play a crucial role in petrochemical processing, cement plants, power generation units, and refinery systems, where they provide stability and prevent loosening under thermal stress. Their outstanding oxidation and creep resistance make them a great choice for fasteners in flue gas systems, kilns, and high-temperature ducting. With enhanced performance in oxidizing and mildly reducing environments, 310/310S washers ensure secure, long-lasting fastening in some of the toughest industrial conditions.
We ensure complete documentation for our stainless steel 310/310S washers, including marketing documentation, packaging information, fumigation certificates, heat treatment protocols, warranty plans good, and NABL approved laboratory test report. Our extensive test certificates for stainless steel 310/310S washers include MTC according to EN 10204/3.1b, PMI test certificate, 100% radiography test report and third party inspection certificate. This careful effort is made to provide 100% customer satisfaction and to ensure the quality and compliance of our stainless steel 310/310S washer.
Punit Fasteners is a leading manufacturer and supplier of high-quality fasteners in Delhi, India, with over 15 years of experience serving global industries.
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