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Chanchai Stainless is a leading producer and seller of high-quality stainless steel products in Bangkok, Thailand, known for providing high reliability and superior quality. One of our major products is Stainless Steel 440C Sheets and Plates that are famous for their excellent corrosion properties, high tensile strength, and exceptional hardness. These factors make them extremely suitable for rigorous industrial applications like manufacturing, automotive, and aerospace. At Chanchai Stainless, we are dedicated to delivering long-term performance through rugged and accurately crafted materials backed by on-time delivery and customer-focused service, becoming a reliable partner for stainless steel solutions throughout Thailand and abroad.
SS 440C is a martensitic high-carbon stainless steel containing about 0.95–1.20% Carbon, 16–18% Chromium, and 0.75% Molybdenum. The above composition ensures superior hardness, corrosion resistance, and wear resistance, and it is one of the strongest grades of stainless steel available. With a hardness rating of up to 60 HRC, SS 440C is suitable for precision and high-stress applications. SS 440C also possesses superior thermal stability and edge retention. These characteristics make it highly useful in applications that require durability, mechanical strength, and toughness against severe environmental and operating conditions.
| ASME/ASTM Grade | ASTM A480 / ASME SA480 |
| Width Available | 1800mm, 3000mm, 1500mm, 2000mm, 1000mm, 2500mm, 1219mm, 3500mm etc |
| Thickness | 4mm – 100mm |
| Supply Length | 2000mm, 2440mm, 6000mm, 5800mm,3000mm etc |
| Most Commom Finish | SATIN (Met with Plastic Coated), 2B, Cold rolled sheet (CR), BA NO(8), Hot rolled plate (HR), 2D |
| Surface types | sand blast, etching, NO.1, embossed, hair line, 2B, Brush, BA, 2D, checkered, NO.8, 8K, NO.4, mirror, etc |
| Available Plate Form with us | Foils, Perforated Sheets, Plain Sheet, Coils, Rolls, Flats, Shim Sheets, Chequered Plate, Strip, Blank (Circle), Ring (Flange) etc. |
| Mo | S | C | Cr | Si | Mn | N | Ni | P |
| 0.75 | 0.03 | 0..95-1.20 | 16.00-18.00 | 1 | 1 | – | – | 0.04 |
| Tempering Temperature (°C) | Tensile Strength (MPa) | Yield Strength 0.2% Proof (MPa) | Elongation (% in 50mm) | Hardness Rockwell (HR C) | Impact Charpy V (J) |
| Annealed* | 758 | 448 | 14 | 269HB max# | – |
| 204 | 2030 | 1900 | 4 | 59 | 9 |
| 260 | 1960 | 1830 | 4 | 57 | 9 |
| 316 | 1860 | 1740 | 4 | 56 | 9 |
| 371 | 1790 | 1660 | 4 | 56 | 9 |
Contact us to get a quick quote for your requirement.
Stainless Steel 440C Hot Rolled Sheets have a high corrosion resistance and durability to be used for applications that need high strength. Usually available from 3mm to 50mm in thickness and up to 2000mm in width. These sheets are used for heavy-duty conditions where strength and toughness are in demand.
Stainless Steel 440C Cold Rolled Plates have excellent corrosion resistance and a smooth finish. The plates are generally supplied in the thickness of 0.5mm to 6mm and width up to 1250mm. The plates are best suited for applications where precision is needed along with high-quality surface finish.
Stainless Steel 440C chequered sheet is used that provides raised patterns for enhanced friction resistance and scratch resistance. Highly corrosion resistant products with sizes as follows: -Thickness range 1.5 mm to 6 mm. They are available in standard sizes up to 1000mmx2000mm. Flooring application, safety purpose, industrial areas, etc.
Stainless Steel 440C Perforated Sheets combine corrosion resistance with functional perforations for ventilation and filtration. Thickness ranges from 0.8mm to 6mm, with hole sizes and patterns. The sheets are used in architectural, industrial, and filtration applications where strength and design flexibility are needed.
Stainless Steel 440C shim plates are provided with precise thickness tolerances and excellent corrosion resistance. They are available in the range starting from the thickness of 0.1mm up to 300mm width. It is ideal for applications requiring the proper spacing and adjustment, and for such machinery and assembly, it is preferred.
Stainless Steel 440C Polished Sheets offer a bright luster appearance with excellent corrosion resistance. Generally available in 0.5mm to 10mm thicknesses and up to 2000mm widths. These sheets are used in decorative and high-end applications where aesthetics and durability are important.
Chanchai Stainless specializes in bringing excellent customer experience with complete documentation for the superior-quality Stainless Steel 440C Sheets and Plates we offer to our customers. We provide commercial invoices, packing lists, fumigation certificates, heat treatment charts, quality assurance plans, and NABL-approved lab test reports that prove authentic and superior quality. In addition, all our Stainless Steel 440C Sheets and Plates are provided with various test certificates such as MTC according to EN 10204/3.1b, PMI Test Certificates, 100% radiography test reports, and Third Party Inspection Certificates. These detail documents reflect that we are very customer-centric, and we aim for excellence with our products.
Stainless Steel 440C Plates and Sheets find extensive use in those applications where high hardness, wear resistance, and strength are needed. They have widespread application in the production of knife blades, surgical equipment, bearings, and tooling parts. In industrial applications, they are utilized in the components of valves, pumps, and machinery subject to severe conditions. Aerospace and automotive sectors use 440C for stress-resisting precise parts that are subject to oxidation as well as corrosive factors. With their combination of strength and resistance to corrosion, 440C plates and sheets are also suitable for long-term performance in functional and decorative applications.







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