Khaled Stainless, located in Cairo, Egypt, specializes in providing Stainless Steel 330 nuts that are designed for high-temperature and oxidation-resistant fastening needs. These nuts are crafted from certified SS 330 bar stock, ensuring precise thread tolerances, controlled hardness, and a consistent surface finish. They are built to maintain clamping integrity even under prolonged exposure to heat. Khaled Stainless supplies these 330 nuts to furnace builders, heat-treatment facilities, petrochemical plants, and power-generation stations where standard stainless fasteners just won’t cut it. Each nut comes with complete material traceability, quality inspection records, and optional heat treatment or passivation, ensuring they deliver durable, low-maintenance bolted joints in harsh thermal and oxidative environments.
Stainless Steel 330 is a high-nickel, high-chromium austenitic alloy that typically contains around 33–37% nickel and 17–20% chromium, along with controlled amounts of carbon and silicon to boost oxidation and carburization resistance. This alloy maintains its structural integrity at very high temperatures and exhibits good creep resistance. The mechanical properties of fasteners can vary based on their condition, but generally, they feature tensile strength in the range of 550–750 MPa, yield strength around 205–310 MPa, and elongation of about 30–45%. SS 330 remains tough and dimensionally stable in continuous service above 900°C, making it ideal for demanding thermal applications.
STAINLESS STEEL 330 NUTS SPECIFICATIONS |
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| 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 330 |
| Ni | 34.00 – 37.00 |
| C | 0.08 |
| Mn | 2.0 max |
| P | 0.03 max |
| S | 0.03 max |
| Si | 1.50 max |
| Cr | 18.00 – 22.00 |
| Mo | – |
| N | – |
| Element | SS 330 |
| Tensile Strength – ksi (min.) | 70 |
| 0.2% Offset Yield Strength – ksi (min.) | 30 |
| Elongation in 2 inches – % (min.) | 30 |
| Hardness – Rockwell B | 90 |
Contact us to get a quick quote for your requirement.
At Khaled Stainless, we are proud to be the largest supplier, manufacturer, and exporter of Stainless Steel 330 Nuts in Cairo, Egypt. Our cutting-edge solutions cater to all your piping needs. With state-of-the-art production facilities strategically located in the Egypt, we maintain a vast inventory of over 16,000 tons of premium-quality materials, ensuring we have the stock readily available to meet your demands.
An anti-corrosion treatment designed for materials at extremely high temperatures. Stainless steel 330 nuts are available in sizes ranging from M6 to M36, making them ideal for furnace applications, heat exchangers and other hot environments.
The threaded rods are connected by stainless steel 330 coupling nuts under high temperature conditions. Sizes range from M6 to M36, suitable for industrial oven applications where high thermal resistance is required.
Stainless steel 330 nylon insert nuts have nylon inserts for secure fastening in harsh conditions. Available in sizes from M6 to M24, they are ideal for high temperature applications where stability and thermal resistance are required.
Stainless steel 330 flange hex nuts for enhanced weight distribution with integrated flange. Sizes range from M6 to M24, making them suitable for high temperatures and harsh environments, such as in heat exchangers and furnace components.
Heavy duty stainless steel 330 heavy hex nuts are designed for high pressure and high temperature applications. Available in sizes from M6 to M36, they provide exceptional strength and heat resistance for use in industrial machinery and furnace parts.
Stainless steel 330 square nuts provide large surface area for efficient torque application. Sizes range from M6 to M24, suitable for high-temperature environments such as furnace parts and heat exchangers, ensuring durability and stability.
We are committed to providing our clients with the finest quality Stainless Steel 330 Nuts. To ensure their outstanding quality, our nuts undergo a thorough series of testing processes before they are dispatched. These tests include hardness testing, chemical analysis via spectro analysis, positive material identification (PMI) testing, flattening tests, micro and macro examinations, pitting resistance tests, flaring tests, and intergranular corrosion (IGC) tests. We also provide third-party inspection certificates to give our clients extra confidence in the quality and suitability of our Stainless Steel 330 Nuts for various applications.
SS 330 nuts are the go-to choice for bolted joints that encounter extreme heat, carburizing atmospheres, and oxidative scaling. Common applications include furnace and kiln assemblies, radiant tubes, supports for reformers and heaters, heat-treating equipment, petrochemical heater coils, industrial ovens, and high-temperature exhaust systems. These nuts are selected for assemblies that operate continuously at temperatures where standard fasteners simply can’t perform.
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