Rupal Metals is a premier Stainless Steel 321 Rectangular Bars manufacturer and supplier from Delhi, India, catering to high-quality products for varied industrial applications. Renowned for our commitment to precision engineering and customer satisfaction, our SS 321 rectangular bars feature unmatched resistance to corrosion and oxidation, even at high temperatures. Backed by a robust network and state-of-the-art infrastructure, we provide clients from various industries such as aerospace, automotive, and chemical processing. Our focus on prompt delivery and compliance with global quality standards has made Rupal Metals a renowned name in the stainless steel sector.
Stainless Steel 321 Rectangular Bars consist mostly of iron, 17–19% chromium, 9–12% nickel, and titanium in a ratio of at least five times the carbon content. Titanium is a stabilizing component, increasing the intergranular corrosion resistance of the alloy. The bars have a tensile strength of around 515 MPa, a yield strength of 205 MPa, and an elongation of about 40%. Having superior mechanical strength, weldability, and creep resistance, Stainless Steel 321 retains its structure and strength at temperatures ranging up to 870°C, which makes it apt for thermal applications.
| Grade | Ti | Mn | C | Si | S | P | Mo | Cr | Ni |
| SS 321 | 5(C+N) to 0.70 maximum | 2.0 maximum | 0.08 maximum | 1.0 maximum | 0.030 maximum | 0.045 maximum | – | 17.00 to 19.00 | 9.00 to 12.00 |
| Melting Point | Density | (0.2%Offset) Yield Strength | Tensile Strength | Elongation |
| 1457 °C (2650 °F) | 8.0 g/cm3 | Psi – 30000 , MPa – 205 | Psi – 75000 , MPa – 515 | 35 % |
| WERKSTOFF NR. | STANDARD | JIS | UNS | EN |
| 1.4541 | SS 321 | SUS 321 | S32100 | X6CrNiTi18-10 |
Yes, Stainless Steel 321 Rectangular Bars can be welded. They offer good weldability, particularly with proper preheat and post-weld heat treatment to prevent carbide precipitation.
Stainless Steel 321 Rectangular Bars generally do not require additional corrosion protection coatings due to their inherent corrosion resistance. However, in harsh environments, extra coatings may be applied for enhanced protection.
Choose Stainless Steel 321 Rectangular Bars based on factors like strength, corrosion resistance, and temperature requirements of your application. Consider factors like weldability and environment exposure to ensure optimal performance.
Stainless Steel 321 Rectangular Bars are widely utilized in high-temperature industrial operations where superior corrosion resistance is required. The bars are best utilized in aerospace parts, exhaust systems, expansion bellows, heat exchangers, and furnace components. They are also used in the chemical and food processing sectors, where organic and inorganic acid resistance is important. Their resistance under welding conditions and capacity to withstand cyclic heating render them appropriate for pressure vessels, marine machinery, and thermal oxidizers. These characteristics make SS 321 rectangular bars an ideal material in harsh structural and thermal conditions.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Rupal Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Delhi, India
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