Maduka Metals, a reputable manufacturer and supplier located in Abuja, Nigeria, specializes in crafting top-notch Stainless Steel 321H Square Bars/Rods. Renowned for their outstanding performance, durability, and precision engineering, these bars are tailored to meet the rigorous demands of both industrial and commercial sectors. Maduka Metals is committed to upholding international quality standards, providing products that boast excellent resistance to heat and corrosion. With cutting-edge technology and a skilled team, the company produces Stainless Steel 321H Square Bars/Rods that thrive in high-temperature applications, ensuring reliability and longevity even in the toughest environments.
Stainless Steel 321H Square Bars/Rods primarily consist of iron, featuring 17–19% chromium, 9–12% nickel, titanium, and a higher carbon content than SS 321, which enhances creep strength. This alloy offers remarkable resistance to oxidation and intergranular corrosion at elevated temperatures. It has a tensile strength of approximately 515 MPa, a yield strength of 205 MPa, and an elongation of around 40%. The material retains good toughness and formability, making it ideal for pressure vessels and high-temperature settings.
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.
Stainless Steel 321H Square Bars/Rods find extensive use in applications that demand heat and oxidation resistance. They are perfect for chemical processing, refineries, heat exchangers, furnace components, and jet engine parts. Their impressive creep and rupture strength make them suitable for continuous operation at high temperatures. Additionally, they are utilized in the oil and gas industries, power generation, and thermal processing equipment. Thanks to their strength, corrosion resistance, and weldability, these bars are also favored for structural and fabrication projects in challenging environments.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Maduka Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Abuja, Nigeria
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