A well-known producer and supplier in Delhi, India, Rupal Metals is renowned for providing high-end stainless steel 440C hollow bars that satisfy international standards. Our 440C hollow bars are designed for high-performance uses that demand exceptional strength, hardness, and resistance to wear. We provide hollow bars to the aerospace, defence, tooling, and engineering sectors thanks to our cutting-edge production facilities and stringent quality control. The bars have outstanding mechanical stability, dimensional accuracy, and surface finish. Rupal Metals is dedicated to providing customers in India and abroad with dependable, prompt, and personalised stainless steel solutions.
High-carbon martensitic stainless steels, such as 440C hollow bars, are made up of roughly 1.0–1.2% carbon, 16–18% chromium, and trace amounts of silicon, manganese, molybdenum, and phosphorus. They provide tensile strength up to 760 MPa, yield strength approximately 450 MPa, and Rockwell hardness up to 58 HRC. They are renowned for their remarkable hardness following heat treatment. These bars offer good dimensional stability, moderate corrosion resistance, and exceptional wear resistance. 440C stainless steel is favoured in high-stress and precise settings because it is perfect for applications requiring high surface hardness and load-bearing capacity.
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 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.
High-carbon martensitic stainless steels, such as 440C hollow bars, are made up of roughly 1.0–1.2% carbon, 16–18% chromium, and trace amounts of silicon, manganese, molybdenum, and phosphorus. They provide tensile strength up to 760 MPa, yield strength approximately 450 MPa, and Rockwell hardness up to 58 HRC. They are renowned for their remarkable hardness following heat treatment. These bars offer good dimensional stability, moderate corrosion resistance, and exceptional wear resistance. 440C stainless steel is favoured in high-stress and precise settings because it is perfect for applications requiring high surface hardness and load-bearing capacity.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Rupal Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Delhi, India
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