Neil Metals is a well-known manufacturer and supplier of Stainless Steel 321H Square Bars and Rods, located in Kolkata, India. They specialize in high-performance stainless steel products that are perfect for high-temperature and corrosive environments. SS 321H, which is a high-carbon variant of grade 321, is stabilized with titanium, making it an excellent choice for pressure-containing and structural applications. Neil Metals is recognized for providing materials that adhere to international quality standards and caters to a diverse range of industries, including chemical processing, aerospace, heat treatment, and power generation. With state-of-the-art manufacturing facilities and a strong focus on precision and durability, Neil Metals guarantees consistent quality and timely delivery to both local and global markets.
The Stainless Steel 321H Square Bars and Rods consist of 17–19% chromium, 9–12% nickel, and 0.04–0.10% carbon, with titanium added to stabilize the alloy and prevent carbide precipitation during welding or exposure to high temperatures. This alloy boasts a tensile strength of around 585 MPa and a yield strength of about 275 MPa. SS 321H maintains impressive strength and oxidation resistance at elevated temperatures up to 870°C, making it suitable for continuous use in high-heat environments. It also offers good toughness, weldability, and resistance to intergranular corrosion.
Stainless Steel 321H Square Bars Specification :
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 321H | 0.04 – 0.10 | 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 | ||||
| 321H | 515 | 205 | 40 | 95 | 217 |
| STANDARD | WERKSTOFF NR. | UNS |
| SS 321H | 1.4438 | S32109 |
| 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 | – | – |
Yes, Stainless Steel 321H Square Bars are highly corrosion-resistant due to the addition of titanium, which helps prevent sensitization in high-temperature environments. They are ideal for applications in corrosive environments, offering excellent durability.
Stainless Steel 321H Square Rods offer excellent resistance to high-temperature oxidation, excellent weldability, and exceptional strength at elevated temperatures. They are ideal for applications in the chemical, petrochemical, and power generation industries.
Yes, Stainless Steel 321H Square Bars can be customized in size and length to meet specific requirements. Customization options are available based on customer needs for various applications.
These Stainless Steel 321H Square Bars and Rods are commonly used in applications that demand strength and stability at high temperatures, especially where welding is involved. Typical applications include heat exchangers, pressure vessels, furnace parts, expansion joints, and flue gas systems. The square bar shape provides structural rigidity, making it ideal for frames, supports, shafts, and construction components in thermal and corrosive service conditions. SS 321H is particularly popular in industries like petrochemical, aerospace, and marine, where long-term performance under heat and stress is essential. Its excellent weldability and mechanical reliability make it a trusted choice for many applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Neil Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Kolkata, India
Copyright 2024 Neil Metals. All rights reserved
