Isis Metals stands out as a top manufacturer and supplier of Stainless Steel 321H Rectangular Bars right here in Manila, Philippines. We take pride in offering high-quality stainless steel products that excel in high-temperature and corrosive settings. Our Stainless Steel 321H Rectangular Bars are titanium-stabilized and have a higher carbon content compared to standard 321, which boosts their creep strength and structural stability when exposed to heat. These bars are designed to resist oxidation, scaling, and intergranular corrosion. Manufactured to meet international quality standards, our Stainless Steel 321H Rectangular Bars are trusted in industries like petrochemical, aerospace, power generation, and heat treatment, where long-lasting thermal durability is a must.
Stainless Steel 321H Rectangular Bars are made up of chromium (17–19%), nickel (9–12%), carbon (0.04–0.10%), and titanium (≥5×C%), along with trace amounts of manganese, silicon, and phosphorus. The increased carbon content enhances their strength at high temperatures and improves creep resistance. These bars boast a tensile strength of 515 MPa, a yield strength of 205 MPa, and an elongation of 40%. With exceptional oxidation resistance, ductility, and thermal stability, Stainless Steel 321H Rectangular Bars are perfect for applications that involve constant exposure to high temperatures and mechanical 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.
Stainless Steel 321H Rectangular Bars find their place in various industries, including chemical processing, oil refining, power generation, and aerospace, thanks to their remarkable resistance to oxidation and high-temperature corrosion. They are perfect for use in heat exchangers, furnace components, pressure vessels, exhaust manifolds, and expansion joints. Additionally, these bars are essential in boiler equipment, catalytic converters, and heat treatment fixtures where mechanical strength under heat is crucial. Their excellent formability, weldability, and long-term stability make Stainless Steel 321H Rectangular Bars a reliable choice for demanding applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Isis Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Manila, Philippines
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