Sabra Metals, from its base in Amman, Jordan, has built a reputation for supplying high-grade metals tailored for demanding environments. Our Stainless Steel 321H Rectangular Bars are a prime example of this commitment. Crafted to endure, these bars are specifically designed to perform under extreme temperatures and in corrosive settings, offering the resilience and reliability that industries across the region have come to expect from a trusted local partner. We take pride in providing a solution that combines superior material science with practical, durable performance for your most challenging projects.
The strength of 321H lies in its specialized composition, which is stabilized with titanium to prevent harmful carbide precipitation during welding or high-temperature service. This grade maintains excellent corrosion resistance while offering enhanced high-temperature strength, thanks to its higher carbon content compared to standard 321. The result is a material with superior creep and stress rupture properties, making it mechanically robust for structural applications that face intense heat, ensuring long-term integrity and performance under sustained thermal stress.
Standard : 321H / 1.4878
Range : 3.17mm to 350mm dia
Designation : ASTM A276, ASME SA276
Finish : Bright, Black, Polish
Thickness: 4.0mm – 100mm
Type: 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 % |
| Standard | SS 321H |
| UNS | S32109 |
| WERKSTOFF NR. / DIN | 1.4878 |
Choose Stainless Steel 321H Rectangular Bars based on their excellent high-temperature resistance and resistance to carbide precipitation in welding applications. Consider mechanical strength, corrosion resistance, and desired thermal stability for specific use cases.
Stainless Steel 321H Rectangular Bars generally do not require corrosion protection coatings due to their inherent corrosion resistance. However, coatings can be applied for enhanced protection in aggressive environments or specific applications.
Yes, Stainless Steel 321H Rectangular Bars can be welded, offering excellent weldability. However, using appropriate filler materials and controlling heat input is essential to prevent carbide precipitation and maintain corrosion resistance.
You’ll find Stainless Steel 321H Rectangular Bars are indispensable in sectors where failure is not an option. They are the backbone of high-temperature fabrications, such as heat exchangers, expansion joints, and furnace components within petrochemical plants and refineries. Their stability also makes them ideal for structural supports in high-heat industrial ovens and aircraft exhaust systems. Essentially, anywhere equipment must maintain its strength and resist oxidation while being subjected to continuous high temperatures, 321H bars provide a trusted and durable foundation.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Sabra Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Amman, Jordan
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