Rupal Metals stands out as a trusted manufacturer and supplier of Stainless Steel 416 Hollow Bars right in the heart of Delhi, India. These bars are precision-engineered to deliver exceptional machinability and mechanical strength. Stainless Steel 416 is a free-machining martensitic stainless steel known for its impressive machinability, moderate resistance to corrosion, and high hardness when heat-treated. The hollow design not only offers cost-effective solutions but also enhances efficiency for components that need internal bores or lighter weight. You’ll find SS 416 hollow bars commonly used in the automotive, aerospace, hydraulic, and industrial machinery sectors, where tight tolerances, a superior surface finish, and mechanical durability are crucial for optimal performance.
Stainless Steel 416 Hollow Bars generally consist of Chromium (12–14%), Sulfur (≥0.15%) to boost machinability, and Carbon (≤0.15%), along with small amounts of Manganese and Silicon. This grade can reach tensile strength levels between 550–760 MPa and hardness up to 35 HRC when heat-treated. SS 416 is magnetic, offers moderate corrosion resistance in mild environments, and excels in chip-breaking during machining. The hollow bar design minimizes material waste and machining time, making it perfect for crafting complex, cylindrical, or internally bored parts with high dimensional accuracy.
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 416 | 0.15 | 14.0 – 12.0 | 1.25 | – | 0.06 | 0.15 | 1 |
| Element | Density, lb/in3 | Melting Point | Electrical Resistivity |
| SS 416 | 0.282 lbs/in3 7 .80 g/cm3 | 2700 – 2790 °F (1488 – 1530 °C) | At 70 °F (21 °C): 343.0 |
| 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 416 hollow bars are commonly used in industries like automotive, aerospace, and petrochemicals, as well as in manufacturing pumps, valves, and gears due to their machinability and corrosion resistance.
SS 416 hollow bars are not ideal for high-temperature applications due to their reduced corrosion resistance and mechanical properties at elevated temperatures. They perform best in moderate conditions, excelling in machinability and wear resistance for general engineering uses.
Stainless Steel 416 Hollow Bars are perfect for precision machining tasks where a superior surface finish, tight tolerances, and material efficiency are paramount. They are commonly used in hydraulic and pneumatic cylinder components, valve parts, drive shafts, spacers, and bushings. The hollow design significantly cuts down on machining time and costs, especially for parts that require central bores or lighter weight. SS 416 is widely utilized across the automotive, oil and gas, food equipment, and mechanical engineering industries. It’s particularly well-suited for production settings that demand high-speed machining and consistent repeatability.
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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