Based in Jakarta, Indonesia, Zain Fittings is a reliable manufacturer and supplier of high quality mesh fittings. Specializing in stainless steel 321/321H forged fittings, we offer superior solutions known for their outstanding resistance to corrosion and heat, making them ideal for demanding industrial applications. Our products are manufactured to the highest standards, ensuring superior performance and durability. Zain Fittings is committed to providing reliable and cost-effective solutions to meet the needs of businesses worldwide.
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)
Stainless steel 321/321H forged fittings are made of austenitic stainless steel with 17-19% chromium and 9-12% nickel, with titanium added to stabilize the system The main difference between 321 and 321H is the increased carbon content of 321H internally, increasing the strength at higher temperatures . These fittings exhibit excellent resistance to oxidation, corrosion and intergranular corrosion, especially in high-temperature environments. Mechanical properties include tensile strength of 505-725 MPa, yield strength of 205-310 MPa, and elongation of 40-50%. Their thermal resistance and stability make them ideal for high temperature applications.
| 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 % |
Zain Fittings is a leading supplier of Stainless Steel 321/321H Forged Fittings in Jakarta, Indonesia. We offer an extensive range of Stainless Steel 321/321H Forged Fittings, renowned for their excellent corrosion resistance and high strength, which makes them perfect for demanding industrial applications like chemical processing, marine environments, and high-temperature systems. With a commitment to quality and reliable delivery, we ensure our clients receive top-tier products tailored to meet the specific needs of various industries.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| STANDARD | WERKSTOFF NR. | UNS | JIS | EN |
| SS 321 | 1.4541 | S32100 | SUS 321 | X6CrNiTi18-10 |
| SS 321H | 1.4878 | S32109 | SUS 321H | X12CrNiTi18-9 |
Choose Stainless Steel 321/321H Forged Fittings from Zain Fittings for superior quality, exceptional corrosion resistance, and reliable performance in extreme conditions. We offer customized solutions backed by expert support and industry experience.
Stainless steel 321/321H forged fittings offer many advantages, including resistance to high temperature oxidation and corrosion, making them ideal for use in high-temperature environments The addition of titanium stabilizes the material, especially prevents sensitivity and intergranular corrosion in welds. These fittings have excellent strength, high tensile and yield characteristics, and excellent formability, ensuring durability and long-term performance in critical applications Stainless steel 321H, with a high carbon content of 1,000. for higher strength at higher temperatures. Overall, they are highly reliable in the petroleum, aerospace, and power sectors.
Yes, custom sizes for Stainless Steel 321/321H Forged Fittings are available at Zain Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@zainfittings.id
| Fitting Schedule/Class | Pipe Size – Pipe Fitting | Fitting Connection Type | Pipe Fitting Material | Max. Pressure |
|---|---|---|---|---|
| Class 150 | 1/2″ | FNPT | Stainless Steel 321 | 150 psi |
| Class 150 | 1/2″ | FNPT | Stainless Steel 321 | 150 psi |
| Class 150 | 1/2″ | Forged | Forged Stainless Steel 321 | 275 psi |
| Class 150 | 1/2″ | Welded | Stainless Steel 321 | 150 psi |
| Class 150 | 3/4″ | FNPT | Stainless Steel 321 | 150 psi |
| Class 150 | 3/4″ | FNPT | Stainless Steel 321 | 150 psi |
| Class 150 | 3/4″ | Forged | Forged Stainless Steel 321 | 275 psi |
| Class 150 | 3/4″ | Welded | Stainless Steel 321 | 150 psi |
| Class 150 | 3/4″ | Welded | Stainless Steel 321 | 150 psi |
| Class 150 | 1″ | FNPT | Stainless Steel 321 | 150 psi |
| Class 150 | 1″ | FNPT | Stainless Steel 321 | 150 psi |
| Class 150 | 1″ | Forged | Forged Stainless Steel 321 | 275 psi |
| Class 150 | 1″ | Welded | Stainless Steel 321H | 150 psi |
| Class 150 | 1″ | Welded | Stainless Steel 321 | 150 psi |
| Class 150 | 1-1/4″ | FNPT | Stainless Steel 321 | 150 psi |
| Class 150 | 1-1/4″ | FNPT | Stainless Steel 321 | 150 psi |
| Class 150 | 1-1/4″ | Forged | Forged Stainless Steel 321 | 275 psi |
| Class 150 | 1-1/4″ | Welded | Stainless Steel 321H | 150 psi |
| Class 150 | 1-1/4″ | Welded | Stainless Steel 321H | 150 psi |
| Class 150 | 1-1/2″ | FNPT | Stainless Steel 321 | 150 psi |
| Class 150 | 1-1/2″ | FNPT | Stainless Steel 321 | 150 psi |
| Class 150 | 1-1/2″ | Forged | Forged Stainless Steel 321H | 275 psi |
| Class 150 | 1-1/2″ | Welded | Stainless Steel 321H | 150 psi |
| Class 150 | 1-1/2″ | Welded | Stainless Steel 321 | 150 psi |
| Class 150 | 2″ | FNPT | Stainless Steel 321 | 150 psi |
| Class 150 | 2″ | FNPT | Stainless Steel 321 | 150 psi |
| Class 150 | 2″ | Forged | Forged Stainless Steel 321H | 275 psi |
| Class 150 | 2″ | Welded | Stainless Steel 321 | 150 psi |
| Class 150 | 2″ | Welded | Stainless Steel 321 | 150 psi |
| Class 150 | 2-1/2″ | FNPT | Stainless Steel 321 | 150 psi |
| Class 150 | 2-1/2″ | FNPT | Stainless Steel 321 | 150 psi |
| Class 150 | 2-1/2″ | Forged | Forged Stainless Steel 321 | 275 psi |
| Class 150 | 2-1/2″ | Welded | Stainless Steel 321H | 150 psi |
| Class 150 | 2-1/2″ | Welded | Stainless Steel 321 | 150 psi |
| Class 150 | 3″ | FNPT | Stainless Steel 321 | 150 psi |
| Class 150 | 3″ | FNPT | Stainless Steel 321 | 150 psi |
| Class 150 | 3″ | Forged | Forged Stainless Steel 321H | 275 psi |
| Class 150 | 3″ | Welded | Stainless Steel 321 | 150 psi |
| Class 150 | 4″ | FNPT | Stainless Steel 321 | 150 psi |
| Class 150 | 4″ | FNPT | Stainless Steel 321 | 150 psi |
| Class 150 | 4″ | Forged | Forged Stainless Steel 321H | 275 psi |
| Class 150 | 4″ | Welded | Stainless Steel 321 | 150 psi |
| Class 150 | 4″ | Welded | Stainless Steel 321 | 150 psi |
| Class 150 | 6″ | FNPT | Stainless Steel 321 | 150 psi |
| Class 150 | 6″ | FNPT | Stainless Steel 321 | 150 psi |
| Class 150 | 6″ | Welded | Stainless Steel 321H | 150 psi |
| Class 150 | 6″ | Welded | Stainless Steel 321 | 150 psi |
| DN-NPT | MAJOR DIAMETER MM | TAPPING DRILL SIZE MM | TPI | PITCH MM |
|---|---|---|---|---|
| 1/16″ | 7.895 | 6.00 | 27 | 0.941 |
| 1/8″ | 10.242 | 8.25 | 27 | 0.941 |
| 1/4″ | 13.616 | 10.70 | 18 | 1.411 |
| 3/8″ | 17.055 | 14.10 | 18 | 1.411 |
| 1/2″ | 21.223 | 17.40 | 14 | 1.814 |
| 3/4″ | 26.568 | 22.60 | 14 | 1.814 |
| 1″ | 33.228 | 28.50 | 11.5 | 2.209 |
| 1¼” | 41.985 | 37.00 | 11.5 | 2.209 |
| 1½” | 48.054 | 43.50 | 11.5 | 2.209 |
| 2″ | 60.092 | 55.00 | 11.5 | 2.209 |
| 2½” | 72.699 | 65.50 | 8 | 3.175 |
| 3″ | 88.608 | 81.50 | 8 | 3.175 |
| 3½” | 101.316 | 94.30 | 8 | 3.175 |
| 4″ | 113.973 | 107.00 | 8 | 3.175 |
| 5″ | 141.300 | 134.384 | 8 | 3.175 |
| 6″ | 168.275 | 161.191 | 8 | 3.175 |
| 8″ | 219.075 | 211.673 | 8 | 3.175 |
| 10″ | 273.050 | 265.311 | 8 | 3.175 |
| 12″ | 323.850 | 315.793 | 8 | 3.175 |
Stainless Steel 321/321H Forged Fittings are widely used in high-temperature environments. Their excellent resistance to oxidation and intergranular corrosion makes them ideal for applications in the chemical, petrochemical, gas and aerospace industries Common applications include fittings for heat exchangers, boiler systems, pressure vessels and exhaust systems. These materials are also used in food processing, power generation, and marine environments where high strength and strength at high temperatures are required Durability and resistance to scratches and corrosion makes it perfect for critical infrastructure and industrial applications.
Get in touch with one of our Technical Sales Representatives to request a quote or get answers to any questions you may have.
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