Aung Metals, a well-respected manufacturer and supplier located in Naypyidaw, Myanmar, specializes in top-notch **Stainless Steel 420 Hollow Bars**. These bars are celebrated for their impressive hardness, wear resistance, and ability to fend off corrosion. Each hollow bar is meticulously crafted to adhere to international standards, guaranteeing dependable performance across various industrial, mechanical, and tooling applications. With a blend of high carbon and moderate chromium, 420 stainless steel delivers exceptional hardness, edge retention, and durability, all while offering decent corrosion resistance. Aung Metals’ 420 Hollow Bars are perfect for tasks that demand precision, strength, and longevity, making them ideal for cutting tools, shafts, bearings, and other high-stress components in the industrial and engineering fields.
These Stainless Steel 420 Hollow Bars contain around 12–14% chromium, 0.15–0.40% carbon, along with trace amounts of manganese, silicon, and phosphorus. This unique composition results in high hardness, solid wear resistance, and moderate corrosion resistance. They boast impressive mechanical properties, including a tensile strength ranging from 600–800 MPa, yield strength between 275–450 MPa, and elongation of 15–25%. Thanks to their martensitic structure, these bars offer excellent toughness, fatigue resistance, and dimensional stability, making them well-suited for high-stress, wear-intensive, and precision applications.
Dimensions : ASTM, ASME
Standard : ASTM / ASME SA A582, A276, A564, ASTM A484, 484M
Surface : hrap, hot rolled pickled or sand blasting finished, cold drawn, polished, hairline
Range : Range – 3.17mm to 350mm dia
| 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 |
| Hollow 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 |
SS 420 hollow bars' excellent wear resistance enhances their performance by ensuring durability in high-friction environments. This property makes them ideal for cutting tools, medical instruments, and mechanical components, reducing maintenance needs and extending service life in demanding applications.
SS 420 hollow bars offer moderate high-temperature resistance but are generally not ideal for prolonged exposure to extreme heat. Their performance is best in applications requiring hardness and corrosion resistance under controlled or moderately elevated temperature conditions.
Aung Metals’ Stainless Steel 420 Hollow Bars find their place in various industries that prioritize hardness, wear resistance, and corrosion protection. They are particularly well-suited for crafting knives, cutting tools, shafts, bearings, fasteners, and surgical instruments. Moreover, they are utilized in pump components, valve parts, and high-stress mechanical assemblies. The hollow design not only reduces weight but also maintains strength, making them ideal for tooling, machinery, and precision engineering tasks. Their blend of hardness, corrosion resistance, and durability ensures a long service life, reliable performance, and high efficiency in demanding industrial operations.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Aung Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Naypyidaw, Myanmar
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