Aung Metals, a prominent manufacturer and supplier located in Naypyidaw, Myanmar, has built a solid reputation for crafting top-notch Stainless Steel 321H Square Bars and Rods. These bars are specifically designed to provide outstanding resistance to intergranular corrosion and oxidation, even at high temperatures, making them a reliable choice for tough industrial settings. Aung Metals utilizes cutting-edge manufacturing techniques and rigorous quality control measures to ensure they meet international standards. Offered in a variety of sizes and finishes, these Stainless Steel 321H Square Bars and Rods are perfect for industries like chemical processing, petrochemicals, aerospace, and power generation, delivering durability, strength, and long-lasting performance, even in extreme heat and corrosive environments.
The composition of Stainless Steel 321H Square Bars and Rods includes chromium (17–19%), nickel (9–12%), carbon (0.08–0.10%), along with manganese, silicon, and titanium, which helps stabilize the alloy against carbide precipitation. These bars boast a tensile strength of about 515 MPa, a yield strength of around 205 MPa, and an elongation of 40%. They provide excellent mechanical stability at high temperatures, along with resistance to creep and oxidation, making them suitable for extended use in harsh, elevated-temperature, and corrosive environments without sacrificing structural integrity.
Stainless Steel 321H Square Bars Specification :
Dimensions : ASTM, ASME
Standard : ASTM / ASME SA A582, A276, A564, ASTM A484, 484M
Surface : hrap, hot rolled pickled or sand blasting finished, cold drawn, polished, hairline
Size : Tolerance: H8, H9, H10, H11, H12, H13K9, K10, K11, K12
| Element | C | Cr | Mn | Ni | P | S | Si |
| SS 321H | 0.04 – 0.10 | 17.0 – 19.0 | 2.00 max. | 9.0-12.0 | 0.045 max. | 0.03 max. | 0.75 max. |
| Grade | Tensile Str (MPa) min | Yield Str 0.2% Proof (MPa) min | Elong (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 321H | 515 | 205 | 40 | 95 | 217 |
| STANDARD | WERKSTOFF NR. | UNS |
| SS 321H | 1.4438 | S32109 |
| SQUARES | ||
|---|---|---|
| Size(mm) | WT PER FEET IN KGS | WT PER MTR IN KGS |
| 16 | 0.62 | 2.05 |
| 18 | 0.79 | 2.59 |
| 20 | 0.76 | 2.49 |
| 22 | 1.18 | 3.87 |
| 25 | 1.52 | 5.00 |
| 28 | 1.91 | 6.27 |
| 30 | 2.19 | 7.20 |
| 32 | 2.50 | 8.19 |
| 36 | 3.16 | 10.37 |
| 38 | 3.52 | 11.55 |
| 40 | 3.90 | 12.80 |
| 45 | 4.94 | 16.20 |
| 50 | 6.10 | 20.00 |
| 56 | 7.65 | 25.08 |
| 60 | – | – |
| 65 | – | – |
| 70 | – | – |
| 75 | – | – |
| 80 | – | – |
| 90 | – | – |
| 100 | – | – |
Yes, Stainless Steel 321H Square Bars are highly corrosion-resistant due to the addition of titanium, which helps prevent sensitization in high-temperature environments. They are ideal for applications in corrosive environments, offering excellent durability.
Stainless Steel 321H Square Rods offer excellent resistance to high-temperature oxidation, excellent weldability, and exceptional strength at elevated temperatures. They are ideal for applications in the chemical, petrochemical, and power generation industries.
Yes, Stainless Steel 321H Square Bars can be customized in size and length to meet specific requirements. Customization options are available based on customer needs for various applications.
Stainless Steel 321H Square Bars and Rods are commonly utilized in applications that demand heat resistance and corrosion protection. They are ideal for creating heat exchangers, furnace components, pressure vessels, boiler tubes, and exhaust systems. These bars are extensively employed in chemical plants, petrochemical industries, power generation equipment, and aerospace components, where thermal stability and long-term durability are crucial. Additionally, they are used in the food processing and pharmaceutical sectors, where hygiene, oxidation resistance, and structural reliability are vital. Their unique blend of strength, stability, and corrosion resistance guarantees dependable performance in challenging conditions.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Aung Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Naypyidaw, Myanmar
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