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Kunj Sheets and Plates is a reputable manufacturer and supplier of Stainless Steel 420 Sheets and Plates located in Chennai, India. Known for its high-quality stainless steel products, Kunj offers durable and versatile 420-grade sheets and plates that cater to various industrial, commercial, and domestic applications. Stainless Steel 420 is a high-carbon, martensitic stainless steel that offers excellent hardness, strength, and wear resistance, especially after heat treatment. These sheets and plates are commonly used in cutlery, surgical instruments, and mechanical parts. With strict quality control, advanced production techniques, and timely delivery, Kunj ensures top-grade solutions for clients nationwide and globally.
Stainless Steel 420 Sheets and Plates typically contain 12–14% chromium and a high carbon content (up to 0.15%), which allows for excellent hardness after heat treatment. This martensitic stainless steel offers a tensile strength of around 700–850 MPa and a yield strength of approximately 345 MPa, with good ductility and impact resistance when tempered. While it offers moderate corrosion resistance, it performs best in non-aggressive environments. It is magnetic in both annealed and hardened conditions and provides excellent polishability, making it suitable for both functional and aesthetic applications.
| Item | Stainless Steel 420 sheet(Hot rolled, cold rolled) | |
| Thickness | 0.01~200mm | |
| Width | 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc | |
| Length | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc | |
| Standard | JIS, AISI, ASTM, GB, DIN, EN, etc | |
| Surface | the surface and finish of stainless steel 420 sheet: 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, checkered, embossed, hair line, sand blast, Brush, etching, etc | |
| Brand: | Indian Origin, European Origin, Japanese Origin, US Origin, Korea Origin, Thailand Origin, Taiwan Origin | |
| Manufacturer: | POSCO, Aperam, Jindal Stainless, DKC Korea, Thyssenkrup, Baosteel, TISCO, Arcelor Mittal, VDM, Nippon Metal, Outokumpu | |
| Package | Shrink-wrapped ,Carton boxes, Wooden pallets, Wooden boxes ,Wooden crates Etc. required. |
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
420 | 0.15 max | 1 max | 1 max | 0.040 max | 0.03 max | 12.0-14.0 | – | – | – |
| Tempering Temperature (°C) | Tensile Strength (MPa) | Yield Strength 0.2% Proof (MPa) | Elongation (% in 50mm) | Hardness Brinell (HB) | Impact Charpy V (J) | |
| Annealed * | 655 | 345 | 25 | 241 max | – | |
| 204 | 1600 | 1360 | 12 | 444 | 20 | |
| 316 | 1580 | 1365 | 14 | 444 | 19 | |
| 427 | 1620 | 1420 | 10 | 461 | # | |
| 538 | 1305 | 1095 | 15 | 375 | # | |
| 593 | 1035 | 810 | 18 | 302 | 22 | |
| 650 | 895 | 680 | 20 | 262 | 42 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| STANDARD | WERKSTOFF NR. | UNS | JIS | AFNOR | BS | GOST | EN | |
| SS 420 | 1.4021 | S42000 | SUS 420 | – | – | – | – |
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Electrical Resistivity (nΩ.m) | ||||
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | ||||||
| 420 | 7800 | 200 | 10.3 | 10.8 | 11.7 | 24.9 | – | 460 | 550 | |
Stainless Steel 420 Sheets and Plates are widely used in applications that demand high strength, wear resistance, and moderate corrosion resistance. In the cutlery and kitchenware industry, they are used for knife blades and utensils. The medical sector uses them in surgical instruments due to their ability to achieve a sharp edge and high polish. In industrial manufacturing, 420-grade sheets and plates are used in pumps, valves, shafts, and gear parts. They are also employed in automotive components, machine tools, and construction for their toughness and machinability. Their durability and hardness make them ideal for precision-engineered products.
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Chennai, India
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