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Njabulo Stainless, located in Cape Town, South Africa, has earned a solid reputation as a reliable manufacturer and supplier of top-notch Stainless Steel 321/321H Sheets and Plates. With a strong focus on precision engineering and high product standards, Njabulo Stainless provides materials that can handle the toughest industrial demands. Our Stainless Steel 321/321H Sheets and Plates are crafted using cutting-edge technology, ensuring they are durable, resistant to corrosion, and precisely dimensioned. These products are perfect for high-temperature applications, delivering dependable and long-lasting solutions to customers across various industries while adhering to international quality and performance benchmarks.
Stainless Steel 321/321H Sheets and Plates are a type of titanium-stabilized austenitic stainless steel, featuring chromium (17–19%), nickel (9–12%), and a carbon content of up to 0.10% for 321H. They boast remarkable resistance to intergranular corrosion, impressive creep strength, and good oxidation resistance at temperatures up to 900°C. With a tensile strength of about 515 MPa and a yield strength of 205 MPa, along with an elongation of roughly 40%, these materials are perfectly suited for high-temperature, high-pressure, and corrosive environments.
Specifications: ASTM A240 / ASME SA240
Dimensions: ASTM, ASME, and API.
Width: 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc
Thickness:4mm-100mm
Length : 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc
Surface Finish: 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, chequered, embossed, hairline, sand blast, Brush, etching, Hot rolled plate (HR), Cold rolled sheet (CR), SATIN (Met with Plastic Coated) etc
Form: Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) etc.
| Grade | C | Mn | Si | P | S | Cr | N | Ni | Ti |
| SS 321 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 5(C+N) – 0.70 max |
| SS 321H | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 4(C+N) – 0.70 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Contact us to get a quick quote for your requirement.
These sheets contain high corrosion resistance and are available up to 1.2-12mm thickness and width up to 2000mm. They are ideal for high temperature application.
Cold rolled plates of SS 321H possess higher corrosion resistance and are available up to 0.3-6mm in thickness and up to 1500mm in width. They are perfect for applications requiring a smooth finish and high strength.
These plates provide outstanding resistance to corrosion, and come in thickness from 3mm up to 12mm and have sizes of up to 1500mm x 3000mm. Raised pattern surface increases the gripping value, thus commonly used for floor and structural work.
Perforated sheets are extremely resistant to corrosion and can be perforated from 0.5mm up to 20mm in diameter. The sheet thickness is also from 0.3mm up to 3mm. It is used in filtration and ventilation systems.
Shim sheets are resistant to corrosion with a high accuracy level. Thickness is available between 0.05mm up to 3mm, and cut-to-size service is also possible to get precise dimensions for several alignment and spacing applications.
Polished plates have excellent resistance to corrosion, and a reflective finish. These plates are manufactured in thickness range from 3mm to 50mm. The size for these plates up to 2000mm x 6000mm is ideal for aesthetic applications as well as a high-quality surface finish.
Njabulo Stainless offers an excellent customer experience along with detailed documentation of its high-quality Stainless Steel 321/321H Sheets and Plates. We deliver key documents such as the commercial invoice, packing list, fumigation certificate, heat treatment chart, quality assurance plan, and NABL-approved lab test report, making it easier to validate the authenticity and superior quality of our products for the value-added customers. Our Stainless Steel 321/321H Sheets and Plates, meanwhile, possess diversified test certificate features, ranging from MTC accordance with EN10204 /3.1B to a PMI test Certificate, radiographic test reports having 100 % and even up to third Party Inspection. Here, too the certificates explain their customer-driven activities and unwearied product quest for superior product quality.
These Stainless Steel 321/321H Sheets and Plates find extensive use in industries that require both high-temperature stability and corrosion resistance. They’re commonly found in exhaust manifolds, furnace components, heat exchangers, expansion joints, jet engine parts, and chemical processing equipment. Their outstanding performance in settings with frequent temperature changes makes them ideal for sectors like petrochemical, aerospace, marine, and power generation. Plus, their excellent weldability and formability make it easy to fabricate them into complex shapes, ensuring they provide a long service life and reliable performance even in the harshest operating conditions.
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