Pratik Pipe & Fittings is one of the leading manufacturers, suppliers, stockists, exporters, and importers of a wide range of Stainless Steel 321H Fasteners targeting various applications in diverse industries. They are a titanium-stabilized austenitic stainless steel resistant to intergranular corrosion, high-temperature strength, and excellent oxidation resistance. That makes 321 fasteners suitable for aerospace, chemical processing, oil & gas, power generation, and marine engineering industries.
Stainless Steel 321H is a titanium-stabilized austenitic stainless steel characterized by improved resistance to creep. With superlative oxidation and intergranular corrosion resistance, these fasteners are used for high-temperature and great pressure applications in harsh conditions such as chemical processing, power plants, heat exchangers, etc. As an eminent manufacturer and supplier of 321H stainless steel fasteners, we guarantee that our products conform to national and international quality standards such as ASTM, ASME, and DIN.
They have all forms of fasteners like SS321H nuts, screws, washers, bolts, threaded rods, studs, etc., in various sizes and grades, to satisfy the widely varying needs of its customers. As stockist and exporter, we can manage bulk orders and prompt deliveries throughout the world. Whether they are standard or tailor-made fasteners, the staff has the know-how to provide products engineered specifically to meet the demands of an application.
Being a reputed importer and supplier of Stainless Steel 321H fasteners, we source high-grade raw materials to ensure superior performance and long life. Due to their excellent mechanical properties and exceptional resistance to scaling, they find applications in aerospace, petrochemical, refinery, marine, and automotive industries. Stringent quality checks at different stages ensure every fastener that goes out meets appropriate testing, including hardness tests, tensile strength analysis, and corrosion resistance checks before the final delivery.
| Specification | ASTM F593, F594, F1554 / ASME SF593, F594, F1554 |
|---|---|
| Standard | DIN, ASTM, BS and all International Standards |
| Bolt / Screw Size | M3 - M56 | 3/6" to 2" | Custom Sizes |
| Nuts Size | M3 - M56 | 3/6" to 2" | Custom Sizes |
| Washers Size | M3 - M56 | 3/6" to 2" | Custom Sizes |
| Machine Screws Size | M1.6 - M12 |
| Self Tapping Screw Size | No.2 - No. 14 |
| Length | 3 mm to 200 mm |
| Types | Nuts, Bolts, Screws, Stud Bolts, Hex Set Screw, Socket Screw, Cap Screw, Pan Head Screw, Machine Screw, Socket Head Cap Screw, Allen Cap Screw, Wing Screw, Washers, Spring Washers, Studs, Anchors, Marine Anchors, Nut, Hexagon Nut, Hex Nut, Hex Coupling Nut, Hex Domed Cap Nuts, Square Nut, Stud Bolts, Hex Head Bolts, Socket Hexagon Head Screw, Anchor Bolt, U-Bolts, J Bolts, Mushroom Head Square Neck Bolts, T-Head Bolts, Wing Screw, Eye Bolt, Foundation Bolts, Structural Bolts |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi - 30000 , MPa – 205 | 35 % |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Fe |
|---|---|---|---|---|---|---|---|---|---|
| SS 321H | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 18.00 - 20.00 | 3.00 - 4.00 | 11.00 - 15.00 | 57.845 min |
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