Njabulo Stainless, based in Cape Town, South Africa, is a trusted manufacturer and supplier of Stainless Steel 422 Bars. These bars are made from martensitic stainless steel 422, offering excellent corrosion resistance, hardness, and mechanical strength. Njabulo Stainless produces bars with precise dimensions, smooth surfaces, and consistent quality, making them suitable for industrial, structural, and mechanical applications. Stainless Steel 422 bars are widely used in chemical, petrochemical, marine, automotive, and heavy machinery industries, where strength, durability, and high-performance material are essential. They provide reliable, long-lasting solutions for critical components and structures.
Stainless Steel 422 Bars are made from martensitic stainless steel 422, containing chromium (15–17%), nickel (2–3%), and moderate carbon content. This composition provides excellent corrosion resistance, high tensile strength, and good hardness, making them suitable for high-stress and high-temperature applications. Mechanically, 422 bars offer toughness, dimensional stability, and fatigue resistance, maintaining integrity under heavy loads and thermal stress. Precision manufacturing ensures smooth surfaces and uniform dimensions, making these bars ideal for industrial, structural, and mechanical applications requiring durability, reliability, and long-lasting performance.
| Component | Wt. % |
| C | 0.23 |
| Cr | 12.5 |
| Fe | 83 |
| Mn | 0.5 |
| Mo | 1 |
| Ni | 0.8 |
| P | 0.02 |
| S | 0.015 |
| Si | 0.38 |
| V | 0.23 |
| W | 1 |
| Mechanical Properties | Metric | English | Comments |
| Hardness, Brinell | 290 | 290 | Estimated from Rockwell C value for Brinell test with 3000 kg load/10 mm diameter ball |
| Hardness, Knoop | 315 | 315 | Estimated from Rockwell C value. |
| Hardness, Rockwell C | 30 | 30 | |
| Hardness, Vickers | 304 | 304 | Estimated from Rockwell C value. |
| Tensile Strength, Ultimate | 897 MPa | 130000 psi | |
| Tensile Strength, Yield | 828 MPa | 120000 psi | 0.2% Offset |
| Elongation at Break | 15 % | 15 % | |
| Reduction of Area | 40 % | 40 % |
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We ensures the highest standards for its stainless steel 422 frames through rigorous testing and certification. Each bar undergoes extensive quality control procedures including mechanical, chemical and theoretical testing to meet international specifications. Industry recognized and certified, these tapes offer reliability, durability and performance in a variety of industries.
Corrosion-resistant and engineered for high strength, Stainless Steel 422 Round Bars are available in diameters from 0.5″ to 12″. They are ideal for use in automotive and aerospace components where high durability and wear resistance are required.
Stainless Steel 422 Flat Bars offer superior hardness and resistance to oxidation, available in thicknesses from 0.25″ to 6″ and widths up to 12″. Perfect for structural applications and machinery needing high strength and durability.
Corrosion-resistant Stainless Steel 422 Square Bars are available in sizes from 0.5″ to 6″ on each side. These bars are designed for demanding applications where high strength and resistance to wear and oxidation are essential.
Offering excellent resistance to oxidation, Stainless Steel 422 Rectangular Bars come in dimensions from 0.5″ x 1″ to 6″ x 12″. Ideal for heavy-duty industrial applications requiring strength and durability under extreme conditions.
Stainless Steel 422 Hexagonal Bars are known for their high strength and resistance to high temperatures, available in sizes from 0.5″ to 4″ across flats. Suitable for aerospace and high-performance industrial uses.
Stainless Steel 422 Hexagonal Bars are known for their high strength and resistance to high temperatures, available in sizes from 0.5″ to 4″ across flats. Suitable for aerospace and high-performance industrial uses.
Stainless Steel 422 Bars are widely used in chemical plants, petrochemical facilities, marine engineering, automotive components, and industrial machinery. They are ideal for manufacturing shafts, structural components, fasteners, valves, pumps, and machinery parts that require corrosion resistance, strength, and durability. Their hardness and mechanical properties make them suitable for high-stress, high-temperature, and industrial environments. In construction and manufacturing, 422 bars provide reliable, long-lasting, and precise components. Overall, Stainless Steel 422 bars deliver strength, corrosion resistance, and performance, making them essential for demanding applications in engineering, industrial, and structural projects.
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