Harshita Stainless, a well-respected manufacturer and supplier located in Delhi, India, specializes in top-notch Stainless Steel 348 Fasteners tailored for industrial and engineering needs that require outstanding thermal and corrosion resistance. These fasteners are crafted for high-performance settings, particularly where intergranular corrosion resistance and high-temperature strength are vital. Using only the finest raw materials and precise manufacturing techniques, Harshita Stainless guarantees that each SS 348 fastener complies with both national and international standards. With a strong emphasis on quality, customization, and prompt delivery, the company serves various sectors, including chemical processing, power generation, aerospace, and oil & gas, catering to clients both locally and globally.
Stainless Steel 348 fasteners are crafted from a stabilized austenitic stainless steel alloy that contains 17–20% chromium, 9–13% nickel, and columbium (niobium) to prevent carbide precipitation during welding. This composition significantly boosts their resistance to intergranular corrosion. They boast a tensile strength of about 515 MPa, a yield strength of 205 MPa, and a Brinell hardness ranging from approximately 150 to 200 HB. SS 348 fasteners maintain their mechanical strength even at elevated temperatures and exhibit excellent resistance to stress rupture and creep. In their annealed state, they are non-magnetic, making them ideal for applications that demand stability, durability, and resistance to scaling and thermal fatigue.
| Standard | ASTM A182 / ASME SA182 |
| Dimensions | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN |
| Standard | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges |
| Size | 1/2″ (15 NB) to 48″ (1200NB) |
| Class/Pressure | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 |
| Flange Face Type | Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ) |
| SS 348H | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 5(C+N) – 0.70 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
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SS 348H blind flanges are designed to seal the end of pipes, providing a strong, corrosion-resistant barrier in high-temperature applications. They ensure system integrity and are ideal for maintenance and pressure containment.
SS 348H ring-type joint flanges offer superior sealing in high-pressure and high-temperature applications. Their precision-engineered design ensures leak-proof connections, making them ideal for demanding environments in industries like petrochemical and aerospace.
SS 348H forged flanges provide exceptional strength and durability, ideal for high-temperature and corrosive environments. Their forged construction ensures high structural integrity and reliability in critical industrial applications and piping systems.
We carry out robust quality tests on stainless steel 348H flanges to provide superior performance and reliability. The products undergo extensive inspection in-house. We facilitate third-party to facilitate when they are needed. Our focus is always on timely delivery to ensure our clients receive their orders without compromising quality or performance.
Stainless Steel 348 fasteners find extensive use in high-temperature, high-stress environments where corrosion and oxidation resistance is crucial. Common applications include heat exchangers, pressure vessels, exhaust systems, chemical processing equipment, and piping in petrochemical facilities. These fasteners are also utilized in power plants, aerospace components, and refinery operations, thanks to their remarkable performance in demanding conditions.
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