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Murad Fasteners has established itself as a reliable manufacturer and supplier in Doha, Qatar, specializing in top-notch Stainless Steel 321 / 321H Nuts that are perfect for high-temperature and corrosive environments. With state-of-the-art manufacturing facilities and rigorous quality control measures, Murad Fasteners delivers nuts that feature precise threading, outstanding dimensional stability, and dependable performance. These products are particularly well-suited for applications that experience elevated temperatures and thermal cycling. Catering to the oil and gas, petrochemical, power generation, and industrial sectors, Murad Fasteners guarantees compliance with international standards, offers tailored solutions, competitive pricing, and ensures timely delivery.
The Stainless Steel 321 / 321H Nuts are crafted from an austenitic stainless steel alloy that’s stabilized with titanium to prevent carbide precipitation. This alloy includes chromium and nickel for enhanced corrosion resistance, while the titanium boosts resistance to intergranular corrosion. On the mechanical side, these nuts provide impressive tensile and yield strength, excellent toughness, and high ductility. The Grade 321H variant, with its higher carbon content, offers improved creep and stress rupture strength at elevated temperatures, ensuring consistent performance even under prolonged thermal exposure.
| 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.
These Stainless Steel 321 / 321H Nuts are extensively utilized in scenarios that demand resistance to high temperatures and corrosive conditions. You’ll often find them in heat exchangers, exhaust systems, pressure vessels, boilers, and piping systems within the oil and gas and petrochemical industries. Their design makes them ideal for assemblies that face thermal cycling and high operating temperatures. With their durability, oxidation resistance, and mechanical reliability, these nuts are perfect for critical industrial applications and high-temperature fastening needs.
At Murad Fasteners, we take great care in installing our Stainless Steel 321/321H nuts to ensure they arrive in pristine condition. Each nut is carefully inspected and individually wrapped with protective material to prevent corrosion. They are then placed in tightly labeled boxes with detailed product details and quantities. Our packaging is designed to protect the environment and physical effects, ensuring that your high-performance fruit is delivered safely and ready for immediate use.
Murad Fasteners is a leading manufacturer and supplier of high-quality fasteners in Doha, Qatar, with over 8 years of experience serving global industries.
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