Chung Metal offers strong Stainless Steel 420 Flat Bars, a martensitic stainless steel which is famous for wear resistance, hardness, and corrosion resistance. SS 420 is usually heat-treated to achieve high hardness suitable for cutting, tooling, and mechanical wear components. The flat bar structure is ideal for blade fittings, machined plates, and structural supports. Chung Metal provides even surfaces, straight edges, and uniform thickness for processing and precision fabrication. SS 420 flat bars are relied upon in applications where surface wear resistance and strength are major performance specifications.
SS 420 has 12–14% chromium and 0.15–0.40% carbon. It can be heat-treated to a hardness of 50 HRC. The alloy possesses tensile strength of 700–1100 MPa and yield strength of 500–700 MPa. Elongation is 10–20%. SS 420 is magnetic, resistant to wear, and holds up well in mildly corrosive or dry conditions. The flat profile is structurally stable and can be cut, welded, or machined with ease. Chung Metal supplies SS 420 flat bars in special widths, thicknesses, and heat treatment conditions for industrial and tooling use.
Dimensions : ASTM, ASME
Standard : ASTM / ASME SA A276, A479, ASTM A493
Length : Random, Fix & Cut Length
Size : 20MM to 150MM
| Element | C | Cr | Mn | Ni | P | S | Si |
| SS 420 | 0.15 | 14.0 | 1.00 | – | 0.04 | 0.03 | 1.00 |
| Element | Tensile Strength | Yield Strength | Elongation | Hardness |
| SS 420 | 95,000 | 50,000 | 25 | 175 |
| Flat Bar | ||
|---|---|---|
| Size(mm) | WT PER FEET IN KGS | WT PER MTR IN KGS |
| 16 | 0.49 | 1.60 |
| 18 | 0.62 | 2.02 |
| 20 | 0.76 | 2.49 |
| 22 | 0.92 | 3.02 |
| 25 | 1.19 | 3.90 |
| 28 | 1.49 | 4.89 |
| 28 | 1.49 | 4.89 |
| 30 | 1.71 | 5.61 |
| 32 | 1.95 | 6.38 |
| 36 | 2.46 | 8.08 |
| 38 | 2.74 | 9.00 |
| 40 | 3.04 | 9.97 |
| 45 | 3.85 | 12.62 |
| 50 | 4.75 | 12.62 |
| 56 | 8.96 | 19.55 |
| 60 | 6.84 | 22.44 |
| 65 | 8.03 | 26.34 |
| 70 | 9.31 | 30.54 |
| 75 | 10.69 | 35.06 |
| 80 | 12.16 | 39.89 |
| 90 | 15.39 | 50.49 |
| 100 | 19 | 62.34 |
Stainless Steel 420 Flat Bar is commonly used in applications requiring high strength, wear resistance, and moderate corrosion resistance. It is often found in the manufacturing of surgical instruments, valves, knives, bearings, shafts, and other precision machinery components.
Stainless Steel 420 typically has a hardness range of 50-55 HRC (Rockwell Hardness). When heat-treated, it can achieve higher hardness levels, making it suitable for applications requiring wear resistance, such as cutlery, tools, and industrial components.
Yes, Stainless Steel 420 Flat Bar can be heat treated to improve strength. Through processes like annealing, hardening, and tempering, its hardness, wear resistance, and overall strength can be enhanced, making it ideal for demanding applications like cutting tools.
420 flat bars find extensive applications in cutlery, surgical tools, valve seats, wear plates, tooling elements, and machinery components. Their hardness and toughness qualify them for bearings, knife blades, and wear-resistant surfaces. The flat form is best used for machine frames, support brackets, and guide rails. SS 420 finds great application in mechanical, automobile, food processing, and general engineering industries. Chung Metal provides customized SS 420 flat bars for situations where dimensional accuracy, mechanical endurance, and surface finish are important to the performance of the component.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Chung Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Da Nang, Vietnam
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