Home > Stainless Steel 321 / 321H Nuts
Request For Our Latest Prices On Stainless Steel 321 / 321H Nuts in Mumbai, India!
The Fasteners Mart, Mumbai, India, is a well-known manufacturer and exporter of high-quality industrial fasteners, providing long-lasting solutions to various ranges of industries across the world. Our range of products includes Stainless Steel 321 / 321H Nuts, which are produced from titanium-stabilized austenitic stainless steel. These nuts are usually hexagonal in form and designed to withstand high-temperature conditions. Although SS 321 has a good resistance against intergranular corrosion during welding, 321H—its high-carbon counterpart—is capable of giving high creep resistance and thus both of them are ideal for thermal application in chemical, petrochemical, and aeronautical industries.
321 / 321H Stainless Steel Nuts consist of chromium (17–19%), nickel (9–13%), titanium (≥5xC%), and carbon (max 0.08% for 321; 0.04–0.10% for 321H) with other elements such as manganese and silicon. They have tensile strength of 515–750 MPa and yield strength of approximately 205 MPa. The density is 7.93 g/cm³, and melting point varies from 1398–1510°C. These nuts offer superior oxidation resistance and structural integrity under long-term thermal stress, and they are therefore ideal for high-temperature operations.
| Specifications | IS, BS, ASTM |
| Standard | ASTM / ASME – A/ SA 193 |
| Length | 3 mm to 200 mm |
| Size | M02 to M33 |
| Type | Hex Nuts, Dome Nuts, Hex Machine Screw Nuts, Hex Lock Nuts Nylon Insert, Hex Jam Nuts, Hex Jam Nylon Lock Nuts, Heavy Hex Nuts, Wing Nuts, Cap Nuts, Acorn Nuts, Square Nuts, K-Lock Nuts, Prevailing Torque Lock Nuts, Top Lock Nuts, Two-Way Reversible Lock Nuts, Pin-Lock Nuts, T-Nuts, Coupling Nuts, T-Slot Nuts, Castle Nuts, Flange Nuts Serrated, Machine Hex Nuts, Finished Hex Nuts, Forged Eye Nut, Rivet Nuts, Slotted Hex Nut, Acme Hex Nuts, Nylock Nuts, Anco Locknuts, Flexloc Nuts, Reversible Locknuts, Panel Nut, Poly Nut, Conelock Nut, Self Clinching Nuts, Domed Cap Nuts, Imperial Thread Nuts, Imperial Thread Nylock Nuts, Sleeve Nuts, Thin Nuts, Weld Nuts, High Tensile Nuts, Cage Nuts, Security Nuts, Imperial Nuts, Industrial Nuts, Miscellaneous Nuts, Insert Nuts, Knurled Nuts, Round Nuts |
| Element | SS 321 |
| Ni | 9.0 – 12.0 |
| C | 0.08 |
| Mn | 2.0 max |
| P | 0.045 max |
| S | 0.030 max |
| Si | 0.75 max |
| Cr | 17.0 – 19.0 |
| Mo | – |
| N | 0.10 |
| Element | SS 321 |
| Tensile Strength (MPa) min | 515 |
| Yield Strength 0.2% Proof (MPa) min | 205 |
| Elongation (% in 50mm) min | 40 |
| Rockwell B (HR B) max Hardness | 95 |
| Brinell (HB) max Hardness | 217 |
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 321 / 321H Nuts find extensive applications in high-temperature service conditions like heat exchangers, pressure vessels, exhaust manifolds, and furnace parts. Their oxidation and intergranular corrosion resistance render them suitable for aerospace, chemical processing, refinery operations, and thermal equipment. Grade 321 is normally utilized where temperature resistance is critical, whereas 321H is selected for applications that require increased creep strength. Such nuts provide long-lasting and safe fastening in harsh operating environments.
The Fasteners Mart offers prompt and effective delivery of Stainless Steel 321 / 321H Nuts to domestic and international markets. Products are properly packaged in moisture-proof materials, bubble wrap, and heavy-duty boxes or crates to avoid transit damage. Each package is marked for easy identification and quality control.
The Fasteners Mart is a leading manufacturer and supplier of high-quality fasteners in Mumbai, India, with over 8 years of experience serving global industries.
©2024 The Fasteners Mart All Rights Reserved.
