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Walid Stainless, based in Tunis, Tunisia, is a dependable manufacturer and supplier of stainless steel 420 sheets and plates for applications that require a balance of strength, hardness, and corrosion resistance. Manufactured using controlled processes and strict quality standards, these sheets and plates offer uniform thickness, clean surface finish, and reliable performance. Stainless steel 420 is a martensitic grade known for its ability to be heat treated for increased hardness. Walid Stainless serves industries such as automotive, tooling, industrial manufacturing, and engineering, providing durable materials supported by technical expertise and responsive customer service.
Composition & Mechanical Properties
Stainless Steel 420 is a type of martensitic stainless steel with the majority percentage being 12-14% chromium and with a carbon excess of 0.15%. Provides high strength, as well as moderate corrosion resistance. Its hardness, corrosion, and thermal stability are also remarkable. SS 420 benefits through good machinability, great abrasion resistance, and in the presence of corrosive elements. This grade of stainless steel is utilized in a number of product ranges like molds, surgical tools, and other industrial machines.
Stainless steel 420 is a martensitic stainless steel containing higher carbon content and chromium, enabling improved hardness and moderate corrosion resistance. Its composition allows effective heat treatment to achieve increased strength and wear resistance. The material provides good tensile strength, high surface hardness after treatment, and reasonable toughness. While its corrosion resistance is lower than austenitic grades, stainless steel 420 performs well in mild to moderately corrosive environments. It maintains dimensional stability and mechanical performance under mechanical stress and repeated use.
| Grade | C | Mn | Si | P | S | Cr | Ni |
|---|---|---|---|---|---|---|---|
| 420 | 0.15 max | 1.00 max | 1.00 max | 0.04 max | 0.03 max | min: 12.0 max: 14.0 | – |
| Tempering Temperature (°C) | Tensile Strength (MPa) | Yield Strength 0.2% Proof (MPa) | Elongation (% in 50mm) | Hardness Brinell (HB) |
|---|---|---|---|---|
| Annealed * | 655 | 345 | 25 | 241 max |
| 399°F (204°C) | 1600 | 1360 | 12 | 444 |
| 600°F (316°C) | 1580 | 1365 | 14 | 444 |
| 800°F (427°C) | 1620 | 1420 | 10 | 461 |
| 1000°F (538°C) | 1305 | 1095 | 15 | 375 |
| 1099°F (593°C) | 1035 | 810 | 18 | 302 |
| 1202°F (650°C) | 895 | 680 | 20 | 262 |
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These are stainless steel 420 hot rolled sheets that can offer excellent corrosion resistance and a durability that no other material could. They range from 3mm to 12mm thickness and are most suitable for any application that calls for high strength and good machinability.
Stainless Steel 420 cold rolled plates offer excellent corrosion resistance and a bright finish. These plates are available in thicknesses ranging from 0.5mm to 6mm and are used in precision applications where dimensional accuracy and fine surface finish are critical.
Stainless Steel 420 chequered plates combine excellent corrosion resistance with a textured surface for slip resistance. They are available in thicknesses from 2mm to 8mm and various patterns, and are widely used in flooring and safety applications.
Stainless Steel 420 perforated sheets are corrosion-resistant and have uniform holes for ventilation and aesthetics. They are available in thicknesses from 1mm to 5mm and are used in filtering and architectural applications.
Stainless Steel 420 shim sheets are very corrosion resistant and precise. Generally available in the thickness of 0.1mm to 1mm, these are used for precise spacing and alignment in many engineering and manufacturing applications.
Stainless Steel 420 polished plates have excellent corrosion resistance and a reflective finish. Available in thicknesses ranging from 1mm to 10mm, they are used for decorative and high-visibility applications where aesthetic quality and resistance to oxidation are critical.
Walid Stainless is highly concerned with the customer experience and delivers that with adequate documentation of its premium-quality Stainless Steel 420 Sheets and Plates. We deliver to our clients the necessary documents like a commercial invoice, packing list, fumigation certificate, heat treatment chart, quality assurance plan, and NABL-approved lab test report. These documents validate the genuineness and superior quality of our products and, therefore, ensure confidence in our valued customers. In addition, we provide our Stainless Steel 420 Sheets and Plates with different test certificates, including MTC according to EN 10204/3.1b, PMI Test Certificate, 100% radiography test report, and Third Party Inspection Certificate, reflecting our customer-first approach and dedication to excellence.
Stainless steel 420 sheets and plates are widely used in applications where hardness and wear resistance are essential. They are commonly applied in the manufacture of cutting tools, knives, surgical instruments, and industrial blades. In the automotive and machinery sectors, they are used for components such as shafts, valves, and wear plates. Stainless steel 420 is also suitable for molds, dies, and mechanical parts that require heat treatment for enhanced strength. Its ability to combine hardness with corrosion resistance makes it a practical choice for precision and industrial applications.
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