Maduka Metals, a reputable manufacturer and supplier located in Abuja, Nigeria, is renowned for its top-notch **Stainless Steel 321H Round Bars and Rods**. These bars are crafted for exceptional performance in high-temperature settings, making them perfect for applications that demand outstanding mechanical strength and resistance to oxidation. Using cutting-edge techniques and high-quality raw materials, Maduka Metals guarantees durability, precision, and compliance with international standards. The 321H stainless steel grade, which is stabilized with titanium, boasts enhanced resistance to intergranular corrosion, making it ideal for challenging environments like power generation, chemical, and petrochemical industries.
The **Stainless Steel 321H Round Bars and Rods** primarily consist of **iron**, along with **17–19% chromium**, **9–12% nickel**, and titanium for stabilization. The “H” variant features a higher carbon content (up to **0.10%**), which boosts its strength at high temperatures and improves creep resistance. This austenitic stainless steel offers impressive **tensile strength (515–700 MPa)**, good ductility, and remarkable resistance to oxidation and scaling at temperatures up to **870°C**. The addition of titanium helps prevent carbide precipitation during welding and extended heating, ensuring stability and long-lasting performance.
Standard : 321H / 1.4878
Range : 3.17mm to 350mm dia
Designation : ASTM A276, ASME SA276
Finish : Bright, Black, Polish
Thickness: 4.0mm – 100mm
Type: Bar, Bright Bar, Black Bars, Hex Bar, Square Bar, Rods, Polish Bar, Forged Bar, Round Bar
Length : Random, Fix & Cut Length
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Ti |
| 321H | 0.04 – 0.10 | 2 max | 0.75 max | 0.045 max | 0.03 max | 17 – 19 | 3 – 4 | 9 – 12 | – | 4xC min 0.60% max |
| Density | 8.0 g/cm3 |
| Melting Point | 1454 °C (2650 °F) |
| Tensile Strength | Psi – 75000 , MPa – 515 |
| Yield Strength (0.2%Offset) | Psi – 30000, MPa – 205 |
| Elongation | 35 % |
| Size (mm) | 10×10 | 12×12 | 16×16 | 20×20 | 25×25 | 32×32 | 40×40 | 50×50 |
|---|---|---|---|---|---|---|---|---|
| kg/m | 0.81 | 1.16 | 2.06 | 3.22 | 5.03 | 8.24 | 12.87 | 19.60 |
| Standard | SS 321H |
| UNS | S32109 |
| WERKSTOFF NR. / DIN | 1.4878 |
Yes, Stainless Steel 321H Round Bars and Rods can be used for natural gas applications. Their excellent resistance to high temperatures and corrosion makes them suitable for gas processing and pipeline systems.
You’ll find **Stainless Steel 321H Round Bars and Rods** commonly used in **heat exchangers, furnace components, expansion joints, exhaust systems, pressure vessels, and chemical processing equipment**. They are particularly suited for **petrochemical, power generation, and aerospace applications** where high temperatures and corrosive conditions are prevalent. These bars retain excellent mechanical properties even under thermal stress, making them ideal for continuous use in **refineries, boiler equipment, and heat treatment facilities**. Their exceptional stability and oxidation resistance make them a go-to choice for critical high-temperature operations.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Maduka Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Abuja, Nigeria
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