Aiman Metals is a reputable manufacturer and supplier of top-notch stainless steel products, based in Kuala Lumpur, Malaysia. We focus on providing high-performance materials, such as the Stainless Steel 321H Hex Bar/Rod, specifically designed for demanding industrial uses. Our dedication to quality, reliability, and customer satisfaction sets us apart, ensuring our products meet international standards. The 321H hex bars are known for their impressive strength, heat resistance, and weldability, making them perfect for high-temperature settings. With a robust distribution network and competitive pricing, Aiman Metals is the go-to choice for stainless steel solutions throughout Malaysia and Southeast Asia.
Stainless Steel 321H Hex Bar/Rod is a titanium-stabilized austenitic stainless steel crafted for high-temperature applications. Its makeup includes Chromium (17-19%), Nickel (9-12%), Carbon (0.04–0.10%), Titanium (≥5xC), along with trace elements like Manganese, Silicon, and Phosphorus. It boasts a tensile strength of 515 MPa, yield strength of 205 MPa, and an elongation of 40%. Renowned for its excellent creep and oxidation resistance, 321H retains its mechanical strength even at temperatures reaching 900°C, making it ideal for critical structural and thermal applications.
Dimensions : ASTM, ASME
Standard : ASTM / ASME SA A276, A479, ASTM A493
Length : Random, Fix & Cut Length
Size : 20MM to 150MM
| Element | C | Cr | Mn | Ni | P | S | Si |
| SS 321 | 0.08 max. | 17.0 – 19.0 | 2.00 max. | 9.0-12.0 | 0.045 max. | 0.03 max. | 0.75 max. |
| 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. |
| Element | C | Cr | Mn | Ni | P | S | Si |
| SS 321 | 0.08 max. | 17.0 – 19.0 | 2.00 max. | 9.0-12.0 | 0.045 max. | 0.03 max. | 0.75 max. |
| 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. |
| HEXAGONS | ||
|---|---|---|
| Size(mm) | WT PER FEET IN KGS | WT PER MTR IN KGS |
| 16 | 0.55 | 1.79 |
| 18 | 0.69 | 2.27 |
| 20 | 0.85 | 2.80 |
| 22 | 1.03 | 3.39 |
| 25 | 1.33 | 4.38 |
| 28 | 1.67 | 5.49 |
| 30 | 1.92 | 6.30 |
| 32 | 2.19 | 7.17 |
| 36 | 2.77 | 9.07 |
| 38 | 3.08 | 10.11 |
| 40 | 3.41 | 11.20 |
| 45 | 4.32 | 14.18 |
| 50 | 5.34 | 17.50 |
| 56 | – | – |
| 60 | – | – |
| 65 | – | – |
| 70 | – | – |
| 75 | – | – |
| 80 | – | – |
| 90 | – | – |
| 100 | – | – |
Stainless Steel 321H Hex Bar/Rod finds its place in high-temperature and high-stress environments where strength, corrosion resistance, and durability are paramount. It’s perfect for heat exchangers, furnace components, boiler parts, expansion joints, exhaust manifolds, and thermal processing equipment. In sectors like petrochemical, aerospace, oil & gas, power generation, and chemical processing, 321H shines due to its stability and performance under elevated temperatures. Its outstanding weldability and formability also make it a great fit for complex fabrication projects that require a long service life and resistance to scaling and creep.






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