Home > Forged Fittings > Stainless Steel 321/321H Forged Fittings
Monib Stainless is a known manufacturer and supplier of high-grade stainless steel in Safat, Kuwait, specializing in Stainless Steel 321/321H Forged Fittings. Dedicated to excellence, we provide high-performance, long-lasting, corrosion-resistant fittings, suitable for use in various industrial applications. SS 321/321H Forged Fittings are designed with high performance under high-temperature and harsh environments and provide strength and reliability at its best. With the backing of advanced manufacturing technology and very strict quality standards, we dedicated to making high-precision, long-lasting products. Our services cater to global customers with sectorial requirements for various sectors like petrochemical, power plant, and marine.
Stainless steel 321/321H forged fittings are mainly made of chromium (17-19%) and nickel (9-12%), titanium (approximately 5 times the carbon content) is added to stabilize the structure Provided good resistance to oxidation and corrosion at high temperatures, making them aerospace and suitable for applications in the chemical industry The 321H variant offers improved creep resistance at high temperatures. Advantages include high strength, excellent weldability and intergranular corrosion resistance, ensuring durability and durability in harsh environments.
Specifications ASTM A182 & ASME SA182
Standard ASME 16.11, MSS SP-79, 83, 95, 97, BS 3799
Size 1/8” NB to 4” NB (Socketweld & Screwed-Threaded)
Class 2000 LBS, 3000 LBS, 6000 LBS, 9000 LBS
Type Socketweld Fittings, Screwed-Threaded Fittings
Forged Fittings Items : 45 Deg Elbow, 90 Deg Elbow, Forged Tee, Union, Full Coupling, Half Coupling, Cross, Cap, Swage Nipple, Plug, Bush, Welding Boss, Hexagonal Nipple etc.
Type Socketweld Fittings, Screwed-Threaded Fittings
Grade 321 / 321H UNS (S32100, S32109), DIN (1.4541, 1.4878)
| 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 % |
Contact us to get a quick quote for your requirement.
At Monib Stainless, each stainless steel 321/321H forged fitting undergoes rigorous testing for excellent quality and performance. Our products are certified to meet international standards, including ISO and ASTM. Tests include material authentication, water testing and non-destructive analysis to ensure durability, reliability and compliance for critical industrial applications around the world.
These fittings, available in sizes from 1/8″ to 4″, are designed for high-pressure applications with socket weld connections. They offer excellent resistance to oxidation and corrosion due to their high chromium and nickel content. Ideal for elevated temperature environments.
Threaded fittings in 321 stainless steel come in sizes ranging from 1/8″ to 6″. They provide superior resistance to intergranular corrosion, making them suitable for high-temperature and pressure applications. The threaded design ensures a secure, leak-proof connection.
This 45-degree elbow, available from 1/2″ to 4″, is used to change the direction of piping. It maintains high corrosion resistance and strength under elevated temperatures, making it suitable for critical, high-stress applications.
The threaded tee, with sizes from 1/8″ to 6″, allows for branch connections at a 90-degree angle. It is designed for high resistance to heat and corrosive environments, ensuring reliability and durability in demanding conditions.
Available in sizes ranging from 1/8″ to 4″, this half coupling provides a secure connection between two pipes. It is crafted to withstand oxidation and corrosion, making it ideal for high-temperature applications.
The socket weld cross, available from 1/2″ to 4″, connects four pipes at right angles. It features high resistance to thermal and chemical stresses, ensuring long-lasting performance in extreme conditions.
Stainless Steel 321/321H Forged Fittings have wide applications where high corrosion resistance and high temperature strength are essential. They find their applications in heat exchangers, chemical processing equipment, and exhaust manifolds where they can remain stable up to 870°C. These forged fittings are applied in the petrochemical, oil and gas, power generation, and aerospace sectors for seamless application in aggressive media. Their improved resistance to creep along with weldability makes them apt for piping systems, boilers, and superheaters. Apart from this, SS 321/321H fittings are also popular in food processing and pharmaceuticals industries due to their resistance against scaling and keeping purity in the hygienic environment.
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