Louis Metals is a prominent Stainless Steel 321H Hex Bar and Rod manufacturer and supplier in Houston, USA, offering high-strength, heat-resistant stainless steel solutions for challenging industrial use. Renowned for its quality and accuracy, Louis Metals manufactures SS 321H hex bars and rods using sophisticated manufacturing processes and top-quality raw materials. These high-carbon, titanium-stabilized bars provide superior resistance to intergranular corrosion and retain structural stability against long-term exposure to high temperatures. Stainless Steel 321H hex bars/rods find application in thermal processing, power applications, chemical plants, and welded high-temperature structures.
Stainless Steel 321H Hex Bars/Rods are stabilized austenitic stainless steels that consist of Chromium (17–19%), Nickel (9–12%), and Titanium along with a high Carbon content (up to 0.10%) for additional creep and stress rupture strength. The bars have a tensile strength of 515–750 MPa and a yield strength approximately 205 MPa. SS 321H possesses superior resistance to oxidation and intergranular corrosion, even following welding, and maintains mechanical stability up to 870°C. The hexagonal configuration provides better grip and torque properties in structural and mechanical usage, while the non-magnetic nature of the alloy and excellent weldability provide versatility in fabrication.
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 Bars and Rods are extensively utilized in high-temperature and pressure conditions in a variety of industries. Typical applications are heat exchangers, boiler parts, pressure vessels, exhaust manifolds, furnace equipment, and thermal process equipment. In the power and petrochemical industries, they are well suited for high-temperature piping systems and welded assemblies exposed to thermal cycling. The high carbon content improves the creep strength, and SS 321H is thus suitable for elevated temperature application. Hex rods/bars are also applied in aerospace and marine applications where strength, resistance to heat, and corrosion protection are necessary for long-term operation.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Louis 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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