Dhruv Metals, based in Hyderabad, India, has earned a solid reputation as a reliable manufacturer and supplier of top-notch Stainless Steel 321 Square Bars and Rods. Known for their precision in manufacturing and commitment to international quality standards, Dhruv Metals provides 321 square bars that boast outstanding resistance to intergranular corrosion and oxidation, even at high temperatures. These austenitic stainless steel products are stabilized with titanium, making them perfect for applications that require prolonged exposure to heat. Catering to a variety of industries, including petrochemical, aerospace, automotive, and power generation, Dhruv Metals offers tailored sizes and quick delivery, ensuring durability, performance, and customer satisfaction both locally and globally.
The Stainless Steel 321 Square Bars and Rods are made up of 17–19% chromium, 9–12% nickel, and titanium (at least five times the carbon content) to stabilize the alloy and prevent carbide precipitation. This alloy is known for its excellent corrosion resistance, especially against intergranular attack after welding. In terms of mechanical properties, it features a tensile strength ranging from 515 to 750 MPa, a yield strength of about 205 MPa, and an elongation of roughly 40%. Stainless Steel 321 excels in resisting oxidation up to 870°C and maintains its mechanical strength in high-temperature environments, making it a great choice for thermal and structural 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
Size : Tolerance: H8, H9, H10, H11, H12, H13K9, K10, K11, K12
| Element | C | Cr | Mn | Ni | P | S | Si |
| SS 321 | 0.08 max. | 17.0 – 19.0 | 2.00 max. | 9.0-12.0 | 0.045 max. | 0.03 max. | 0.75 max. |
| Grade | Tensile Str (MPa) min | Yield Str 0.2% Proof (MPa) min | Elong (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 321 | 515 | 205 | 40 | 95 | 217 |
| STANDARD | WERKSTOFF NR. | UNS |
| SS 321 | 1.4541 | S32100 |
| SQUARES | ||
|---|---|---|
| Size(mm) | WT PER FEET IN KGS | WT PER MTR IN KGS |
| 16 | 0.62 | 2.05 |
| 18 | 0.79 | 2.59 |
| 20 | 0.76 | 2.49 |
| 22 | 1.18 | 3.87 |
| 25 | 1.52 | 5.00 |
| 28 | 1.91 | 6.27 |
| 30 | 2.19 | 7.20 |
| 32 | 2.50 | 8.19 |
| 36 | 3.16 | 10.37 |
| 38 | 3.52 | 11.55 |
| 40 | 3.90 | 12.80 |
| 45 | 4.94 | 16.20 |
| 50 | 6.10 | 20.00 |
| 56 | 7.65 | 25.08 |
| 60 | – | – |
| 65 | – | – |
| 70 | – | – |
| 75 | – | – |
| 80 | – | – |
| 90 | – | – |
| 100 | – | – |
Stainless Steel 321 Square Bars are available in a range of sizes, typically from ¼" to 12" in width. Common finishes include mill finish, polished, and cold drawn.
Yes, Stainless Steel 321 Square Rods can be welded using most standard welding techniques. However, post-weld heat treatment may be required to maintain its properties and prevent sensitization.
Stainless Steel 321 Square Bars are generally non-magnetic in their annealed condition. However, they may exhibit slight magnetic properties if cold-worked.
These Stainless Steel 321 Square Bars and Rods are commonly used in high-temperature settings where resistance to oxidation and intergranular corrosion is essential. Typical applications include heat exchangers, furnace components, exhaust systems, expansion joints, and parts for aerospace engines. In the chemical and petrochemical sectors, these bars find their place in pressure vessels, reactor equipment, and piping systems. Their strength and stability during thermal cycling make them ideal for automotive and refinery components. Additionally, they are used in architectural structures, boiler parts, and welded equipment.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
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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