Ranya Stainless is a well-respected manufacturer and supplier located in Muscat, Oman, focusing on high-quality Stainless Steel 321/321H Fasteners. Renowned for its commitment to quality and reliability, the company offers a wide array of fasteners designed to endure tough industrial conditions. With state-of-the-art production facilities, rigorous quality control, and top-notch raw materials, Ranya Stainless guarantees that its SS 321/321H Fasteners provide excellent corrosion resistance, heat stability, and a long lifespan. Catering to various industries throughout Oman and the Middle East, the company remains a trusted ally for those in need of durable and high-performance fastening solutions. Ranya Stainless is a brand name in the metal industry. It is the leading manufacturer and supplier of high-quality Stainless Steel 321/321H Fasteners in Muscat, OMAN. Known for high strength, corrosion resistance and durability. These fasteners are ideal for use in industrial applications, chemical processing, aerospace engineering, and high-temperature environments. Quality and customer satisfaction are our priority and the products we supply are up to the best standards in the industry. We manufacture these Stainless Steel 321/321H Fasteners in various specifications so that various requirements of the projects can be fulfilled. As the pursuit of perfection is our forte, we present reliable solutions designed for your industries.
Stainless Steel 321/321H Fasteners are titanium-stabilized austenitic alloys that include chromium and nickel, specifically engineered to resist intergranular corrosion when exposed to high temperatures. The Grade 321H variant has a higher carbon content, which enhances its creep strength and durability in high-temperature settings. These fasteners exhibit impressive tensile strength, reliable yield strength, and good elongation, ensuring they maintain mechanical stability even in challenging conditions. Their well-balanced chemical makeup provides resistance to oxidation, thermal fatigue, and stress corrosion, making them a dependable choice for long-term industrial applications.
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.
| Grade | C | Mn | Si | P | S | Cr | N | Ni | Ti |
| SS 321 | 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 |
| SS 321H | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 4(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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Stainless Steel 321 Nuts offer excellent resistance to oxidation and corrosion, particularly in high-temperature environments. They are typically available sizes from M6 to M36, with various thread standards. They are commonly used in aerospace and industrial applications where high temperatures are prevalent.
Stainless Steel 321H Stud Bolts provide outstanding oxidation and chemical corrosion resistance, especially in high-temperature conditions. They usually come in lengths from 50 mm to 300 mm and diameters from M8 to M30. Ideal for high-stress environments in chemical processing and aerospace industries.
Stainless Steel 321H Bolts offer high resistance to corrosion and oxidation in elevated temperatures. They are available in sizes ranging from M6 to M36, tailored to specific length requirements, and are widely used in structural and high-temperature applications.
Stainless Steel 321 and 321H threaded rods are designed to resist corrosion and oxidation in harsh environments. They typically come in lengths from 100 mm to 1000 mm and diameters from M6 to M30. Suitable for structural and high-temperature applications.
Stainless Steel 321 screws provide excellent resistance to rust and oxidation, especially at elevated temperatures. They are available in various sizes from M2 to M20 and are often used in applications where resistance to heat and corrosion is critical.
Stainless Steel 321H washers offer strong resistance to corrosion and high temperatures. They come in sizes that match common bolt and nut dimensions, typically from M6 to M36. It is ideal for use in high-temperature applications and aggressive environments.
We pay immense attention at the time of packing of these Stainless Steel 321/321H Fasteners to ensure these are delivered in good condition at the doorstep of our customers. We use high-quality packing materials that meet the industry standards, such as strong wooden boxes, durable pallets, and eco-friendly packaging options. This careful packing prevents dirt, dust, or contaminants from affecting the fasteners, thus preserving their superior quality. Moreover, our robust packaging safeguards the products during transit, minimizing the risk of damage or contamination. Detail attentiveness and the commitment to quality assurance reflect a commitment to offering the best quality products to the valued customers.
Stainless Steel 321/321H Fasteners find extensive use in environments that experience high temperatures and corrosive conditions. They are frequently utilized in chemical processing facilities, petroleum refining equipment, exhaust systems, heat exchangers, and furnace components. Their ability to withstand thermal stress makes them ideal for aerospace structures, power generation units, and high-temperature fabrication projects. Additionally, these fasteners are effective in food processing, ensuring they meet the rigorous demands of various industries.
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