Hemi Metals, located in Hamilton, New Zealand, is a trusted manufacturer and supplier of Stainless Steel 420 Hex Bars, designed for applications that require high hardness, strength, and moderate resistance to corrosion. Renowned for their precision-engineered stainless steel products, the company specializes in crafting 420 Hex Bars that boast accurate dimensions, an excellent surface finish, and consistent metallurgical quality. This particular grade is perfect for components that need wear resistance and dependable mechanical performance. Hemi Metals caters to various industries, including tooling, mechanical engineering, knife manufacturing, pump components, and general machining, ensuring that all products adhere to strict quality standards and industrial specifications.
Stainless Steel 420 Hex Bars are composed of 12–14% chromium, carefully controlled carbon levels, and minimal nickel, which allows for high hardness and strength after heat treatment. This martensitic stainless steel offers impressive wear resistance, good edge retention, and moderate corrosion protection in mildly corrosive environments. The grade provides high tensile strength, excellent hardness, and good fatigue resistance, particularly in quenched and tempered conditions. While it may be less ductile than austenitic grades, it maintains stable dimensional properties and strong mechanical performance. SS 420 is an excellent choice for components that require a hard, durable stainless steel with good machinability in annealed conditions.
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 |
| HEXAGONS | ||
|---|---|---|
| Size(mm) | WT PER FEET IN KGS | WT PER MTR IN KGS |
| 16 | 0.55 | 1.79 |
| 18 | 0.69 | 2.27 |
| 20 | 0.85 | 2.80 |
| 22 | 1.03 | 3.39 |
| 25 | 1.33 | 4.38 |
| 28 | 1.67 | 5.49 |
| 30 | 1.92 | 6.30 |
| 32 | 2.19 | 7.17 |
| 36 | 2.77 | 9.07 |
| 38 | 3.08 | 10.11 |
| 40 | 3.41 | 11.20 |
| 45 | 4.32 | 14.18 |
| 50 | 5.34 | 17.50 |
| 56 | – | – |
| 60 | – | – |
| 65 | – | – |
| 70 | – | – |
| 75 | – | – |
| 80 | – | – |
| 90 | – | – |
| 100 | – | – |
The Hex Bar shape offers improved grip, stability, and easier alignment during machining or fabrication. It reduces rotation and slippage, allowing for more accurate cuts and efficient handling, especially when working with the hard, durable SS 420 stainless steel.
SS 420 Hex Bars are commonly used in applications requiring high wear resistance, such as shafts, valves, and tools. Its ability to be heat-treated for superior hardness and strength makes it ideal for demanding environments compared to other stainless steel grades.
Stainless Steel 420 Hex Bars find extensive use in industries that demand high hardness, sharp edges, and excellent wear resistance. Typical applications include knife blades, cutting tools, surgical instruments, pump shafts, valve parts, and mechanical components that experience friction. This grade is also utilized for gears, fasteners, bushings, and precision-machined parts where strength and durability are crucial. In industrial machinery, 420 hex bars are particularly effective in components that face repeated stress and wear.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Hemi Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Hamilton New Zealand
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