Premium-grade stainless steel 321H hex bars and rods designed for high-temperature and high-pressure settings are available from George Metals, a reputable manufacturer and supplier with headquarters in Houston, USA. These hex bars, which are well-known for their exceptional strength and resistance to oxidation, are perfect for applications that call for increased structural integrity and creep resistance. George Metals provides customers in the petrochemical, power generation, and heat treatment sectors with precisely machined 321H stainless steel products while maintaining a dedication to quality and compliance with international standards. George Metals is a dependable partner for stainless steel solutions in the United States and abroad, supported by a strong supply chain and knowledgeable technical assistance.
The stabilised austenitic stainless steel 321H Hex Bars/Rods has a higher carbon content (~0.04–0.10%) for increased high-temperature strength, along with about 17–19% Chromium and 9–12% Nickel. To stop carbide precipitation, titanium (at least five times the carbon content) is added. The material has an elongation of 40%, a yield strength of 205 MPa, and a tensile strength of about 515 MPa. In addition to having good weldability and corrosion resistance, it exhibits outstanding creep and stress rupture resistance at high temperatures. Because of these characteristics, it can withstand extended exposure to high temperatures without losing structural integrity.
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 | – | – |
Because of their exceptional stability and resistance to intergranular corrosion, stainless steel 321H Hex Bars and Rods are frequently utilised in high-temperature applications. The petrochemical, aerospace, refinery, and power generation industries are among those that frequently use 321H. These bars are ideal for heat exchangers, furnace parts, pressure vessels, expansion joints, and exhaust systems. They are appropriate for thermal processing equipment because they can withstand oxidation and retain strength at temperatures as high as 900°C. Improved grip and torque transfer are further benefits of the hexagonal profile, which makes them useful in fasteners, structural assemblies, and precision-machined parts subjected to demanding operating environments.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
George Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Houston, USA
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