Dhruv Metals, a trusted manufacturer and supplier located in Hyderabad, India, specializes in high-quality Stainless Steel 440C Hollow Bars designed for applications that demand outstanding hardness, strength, and wear resistance. Renowned for their precision and quality, Dhruv Metals crafts 440C hollow bars with tight dimensional tolerances and a smooth internal finish, making them perfect for machining and engineering tasks. These hollow bars are produced to meet international standards, ensuring they perform exceptionally well in high-stress and high-temperature environments. Dhruv Metals caters to various industries, including defense, aerospace, tooling, and manufacturing, where durability and performance are paramount.
Stainless Steel 440C Hollow Bars are primarily made up of high carbon (around 1.0%) and chromium (16–18%), along with elements like manganese, molybdenum, and silicon. This martensitic stainless steel can be heat-treated to reach a hardness of 58–60 HRC, providing excellent wear resistance and high strength. Its mechanical properties include a tensile strength of up to 760 MPa, a yield strength of 450 MPa or more, and moderate corrosion resistance when hardened. The hollow design minimizes material usage while preserving strength, making it ideal for precision machining of components that require high surface hardness and dimensional stability.
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 440C | 1.20-0.95 | 18.00-16.00 | 1.00 | 1.00 | 0.04 | 0.03-0.15 | 1.00 |
| Element | C | Cr | Mn | Ni | P | S | Si |
| SS 440C | 1.20-0.95 | 18.00-16.00 | 1.00 | 1.00 | 0.04 | 0.03-0.15 | 1.00 |
| 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 440C hollow bar is commonly used in aerospace, automotive, chemical processing, and manufacturing industries. Its high strength, wear resistance, and corrosion resistance make it ideal for applications such as bearings, valve components, shafts, and cutting tools.
SS 440C hollow bar performs exceptionally well in harsh environmental conditions due to its high corrosion resistance, hardness, and wear resistance. It withstands exposure to moisture, chemicals, and high temperatures, making it suitable for demanding applications in extreme environments.
SS 440C hollow bar is known for its high hardness, excellent wear resistance, and good corrosion resistance. It offers strong mechanical properties, including high tensile strength and durability, making it ideal for applications requiring toughness and reliability in challenging environments.
These Stainless Steel 440C Hollow Bars are frequently utilized in applications where high hardness and wear resistance are crucial. They are commonly found in the production of bearing races, valve components, shafts, bushings, and high-performance mechanical parts across the aerospace, automotive, and tooling sectors. Thanks to their ability to maintain hardness at elevated temperatures, 440C hollow bars are also employed in cutting tools, molds, and surgical instruments. Their hollow structure not only allows for lighter components but also enhances material efficiency, especially in applications that require both precision machining and exceptional durability under mechanical stress.






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Dhruv Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Hyderabad , India
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