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Njabulo Stainless, based in Cape Town, South Africa, is a trusted manufacturer and supplier of Stainless Steel 439 Sheets and Plates. These high-quality sheets and plates are designed for durable, corrosion-resistant, and heat-stable applications in industrial, mechanical, and structural uses. Njabulo Stainless ensures precise dimensions, smooth surfaces, and consistent quality, making them reliable for manufacturing and construction purposes. Stainless Steel 439 sheets and plates are widely used in automotive, chemical, petrochemical, power generation, and architectural applications, where resistance to high temperatures, oxidation, and corrosion is essential for long-lasting and efficient performance.
Stainless Steel 439 Sheets and Plates are made from ferritic stainless steel 439, containing chromium (17–19%), titanium (0.2–0.6%), and very low carbon content. This composition provides excellent resistance to oxidation, corrosion, and high temperatures. Mechanically, 439 sheets and plates offer good tensile strength, dimensional stability, and toughness, making them suitable for high-temperature and corrosive environments. Precision manufacturing ensures smooth surfaces, uniform thickness, and flatness. These properties make 439 sheets and plates ideal for industrial, mechanical, automotive, and structural applications requiring durability, heat resistance, and corrosion protection.
Specifications : ASTM A240 / ASME SA240
Size : 1/4″ to 4″
Range : 5mm To 150mm
Thickness : 4.0mm – 100mm
Hardness : Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc.
Finish : Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated)
Form : Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange)
| Grade | C | Mn | Si | S | P | Cr | Mo | Ti |
| SS 439 | 0.01 max | 0.25 max | 0.35 max | 0.0015 max | 0.02 max | 17.35 | 0.1 | 0.335 |
| Element | Density | Tensile Strength | Yield Strength (0.2%Offset) | Elongation | Hardness |
| SS 439 | 7.8 g/cm3 | 438 MPa | 263 MPa | 2.80% | 72.9 |
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Stainless Steel 439 Hot Rolled Sheets have excellent corrosion resistance. The sheets are available in sizes from 3mm to 150mm in thickness and up to 2500mm in width. They are widely used in the construction and automotive industries.
Superior corrosion resistance is given by Stainless Steel 439 Cold Rolled Plates. These plates are produced in the thickness range from 0.5mm up to 6mm and in width up to 2000mm with a smoother surface finish and mechanical properties better than hot-rolled plates.
Stainless Steel 439 Chequered Sheets feature superior corrosion resistance. The available range is common from 1.5mm up to 10mm thickness in chequered pattern sheets for anti-slip purposes such as floor plates, stair treads, and various forms of stair flooring.
Stainless Steel 439 Perforated Plates give an excellent level of corrosion protection. These can be offered from 0.5mm through to 5mm in several hole sizes and patterns for different purposes like filtering, ventilation and for decorative reasons in various engineering applications.
Corrosion resistive Stainless Steel 439 Shim Sheets are manufactured using thin-precision-cut steel sheet, between 0.05mm to 3mm which are used by engineering applications at tighter tolerances to space and align.
Stainless Steel 439 Polished Plates offer excellent corrosion resistance. Plates available in thickness from 0.5mm to 6mm and widths up to 2000mm with a high-gloss finish are ideal for architectural and decorative applications.
Njabulo Stainless is committed to the delivering of premium quality accompanied by comprehensive documentation for our premium Stainless Steel 439 Sheets and Plates. Some of the essential documents being: commercial invoice, packing list, fumigation certificate, heat treatment charts, quality assurance plans, and NABL approved lab test reports. These documents validate the quality and origin of the product, thereby giving confidence and trust with the valued customers. With an inherent high creep strength, as well as oxidation, our Stainless Steel 439 sheets and plates consist of test certificates, such as MTC under EN 10204/3.1B, PMI test certificates, 100 % radiography reports, and also third-party inspection.
Stainless Steel 439 Sheets and Plates are widely used in automotive exhaust systems, chemical processing, petrochemical plants, power generation, and industrial machinery. They are ideal for manufacturing components exposed to high temperatures and corrosive environments, such as exhaust manifolds, heat exchangers, boiler components, and industrial panels. Their excellent oxidation and corrosion resistance make them suitable for industrial, mechanical, and automotive applications requiring long-lasting, reliable material. In construction and manufacturing, 439 sheets and plates provide durable, heat-resistant, and corrosion-proof solutions, making them essential for high-performance industrial, mechanical, and structural applications.
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