Aung Metals, a reputable manufacturer and supplier located in Naypyidaw, Myanmar, is known for its top-notch Stainless Steel 420 Hollow Bars. These bars are celebrated for their precision engineering and outstanding performance, crafted to meet international quality standards and cater to a variety of industrial needs. Aung Metals prioritizes durability, dimensional accuracy, and corrosion resistance in every product, making them a go-to choice for clients in numerous sectors. With state-of-the-art manufacturing facilities, a team of skilled professionals, and a strong commitment to excellence, Aung Metals consistently provides stainless steel solutions that ensure reliability and a long service life for demanding engineering and manufacturing applications.
Stainless Steel 420 Hollow Bar is a high-carbon, martensitic stainless steel that contains about 12–14% chromium, 0.15% carbon, 1% manganese, along with trace amounts of silicon, phosphorus, and sulfur. It boasts impressive strength, hardness, and moderate resistance to corrosion. Typical mechanical properties include a tensile strength ranging from 700 to 850 MPa, a yield strength of around 450 MPa, an elongation of 15%, and a hardness of up to 500 HB when heat-treated. The material’s ability to achieve a high polish and maintain sharp edges makes it perfect for precision components that require wear and corrosion resistance.
Standard ASTM A276, A479 / ASME SA276, SA479
Range 3.17 MM TO 350 MM DIA
Diameter 25mm to 152mm
Size Tolerance h8, h9(DIN 671), h10, h11, ASTM A484, DIN 1013
Finish Bright, Polish & Black
Form Round, Square, Hex (A/F), Rectangle, Wire (Coil Form), Wiremesh, Billet, Ingot, Forging Etc.,
Condition Cold Drawn & Polished Cold Drawn, Centreless Ground & Polished
Other Services Machining (CNC), Centreless Grinding (CG), Heat Treatment, Anneling, Pickling, Polish, Rolling, Forging, Cutting, Bending, Minor Fabrication
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Fe |
| SS 317 | 0.08 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 18.00 – 20.00 | 3.00 – 4.00 | 11.00 – 15.00 | 57.845 min |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.9 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
SS 317 offers superior corrosion resistance compared to standard stainless steels like SS 304 and SS 316, especially in chloride-rich environments. It provides enhanced protection against pitting, crevice corrosion, and general corrosion, making it ideal for harsh chemical and marine applications.
SS 317 Hollow Bars typically contain 18-20% chromium, 3-4% molybdenum, 13-15% nickel, with small amounts of manganese, silicon, and carbon. This composition provides excellent corrosion resistance, particularly against chlorides, and enhances its strength at high temperatures.
Stainless Steel 420 Hollow Bars find extensive use across industries that demand strength, durability, and resistance to corrosion. They are commonly used in manufacturing shafts, pump components, valve parts, surgical instruments, and cutlery. Additionally, they are employed in the automotive, marine, and chemical processing sectors due to their capability to endure harsh environments and high mechanical stress. The bars’ machinability and heat-treatable properties make them ideal for tooling applications, fasteners, and high-wear mechanical parts. Aung Metals’ precisely crafted 420 hollow bars deliver exceptional performance in both structural and functional applications, ensuring reliability in challenging engineering environments.
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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