Houston, USA-based George Metals is a trusted producer and supplier of **Stainless Steel 321H Rectangular Bars**, providing high-strength, heat-resistant solutions customized for extreme industrial applications. Stainless Steel 321H is a titanium-stabilized austenitic stainless steel containing higher carbon levels than standard 321, exhibiting enhanced creep strength and stability at high temperature. George Metals guarantees accuracy manufacturing and close dimensional control, which makes these rectangular bars suitable for structural and mechanical application in high-temperature and corrosive conditions like chemical processing, power generation, aerospace, and oil & gas applications.
**Stainless Steel 321H Rectangular Bars** consist of 17–19% chromium, 9–12% nickel, carbon up to 0.10%, and titanium is added for stabilization. This composition avoids carbide precipitation and improves performance in continuous service over 538°C (1000°F). Mechanical properties are tensile strength of 515–750 MPa, yield strength of around 205–275 MPa, and elongation of about 40%. The product, **Stainless Steel 321H Rectangular Bars**, possesses high-temperature strength, superior oxidation resistance, and satisfactory weldability and hence is applicable to pressure-containing components and structural parts under elevated temperature conditions.
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 |
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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