Nakamura Stainless, located in Pulau Ujong, Singapore, is a reliable manufacturer and supplier of high-quality stainless steel products, including stainless steel 321 bars. These bars are made for high-temperature applications and are known for their strong resistance to intergranular corrosion and oxidation. Stainless steel 321 is stabilized with titanium, which makes it suitable for welded structures and environments that experience frequent thermal cycling. Nakamura Stainless provides precisely made 321 bars that meet international standards. They serve industries such as aerospace, chemical processing, automotive, and power generation with dependable and long-lasting performance.
Stainless steel 321 bars consist of 17–19% chromium, 9–13% nickel, and titanium, which stabilizes the alloy and stops carbide precipitation during welding. This gives the material great resistance to intergranular corrosion, especially after being exposed to high temperatures. These bars usually have a tensile strength between 520 and 750 megapascals and maintain their mechanical properties at temperatures up to 870°C. Stainless steel 321 also offers good formability and weldability, making it suitable for complex components in challenging thermal environments.
Standard : 321 / 1.4541
Range : 3.17mm to 350mm dia
Designation : ASTM A276, ASME SA276
Finish : Bright, Black, Polish
Thickness: 4.0mm – 100mm
Type: Bar, Bright Bar, Black Bars, Hex Bar, Square Bar, Rods, Polish Bar, Forged Bar, Round Bar
Length : Random, Fix & Cut Length
Grade | Mn | N | P | C | S | Cr | Mo | Si | Ni | Other | |
321 Stainless Steel Nuts | minimum maximum | 2.00 | 0.10 | 0.045 | – 0.08 | 0.030 | 17.0 19.0 | – | 0.75 | 9.0 12.0 | Ti=5(C+N) 0.70 |
Grade | Tensile Strength (MPa) minimum | Yield Strength 0.2% Proof (MPa) minimum | Elongation (% in 50mm) minimum | Hardness | |
Rockwell B (HR B) maximum | Brinell (HB) maximum | ||||
321 Stainless Steel Nuts | 515 | 205 | 40 | 95 | 217 |
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At Nakamura Stainless, 321 stainless steel panels are rigorously tested to ensure compliance with international quality standards. Necessary documentation, including material test reports (MTRs), chemical and mechanical analyses, and third-party testing certificates, is provided to ensure reliability, durability and accurately defined for industrial applications
Stainless Steel 321 Round Bars Corrosion-resistant product with excellent high-temperature stability. Available in diameters from 0.5″ to 12″, ideal for aerospace and chemical processing applications where durability is critical.
Stainless Steel 321 Flat Bars This product offers superior resistance to oxidation and is available in thicknesses from 0.25″ to 6″ and widths up to 12″. Perfect for structural and high-temperature applications.
Stainless Steel 321 Square Bars Corrosion-resistant product designed for strength, available in sizes ranging from 0.5″ to 6″ on each side. Suitable for industrial applications requiring high-temperature performance.
This Corrosion-resistant product with dimensions from 0.5″ x 1″ to 6″ x 12″. Ideal for use in heavy-duty applications and structures where thermal stability is essential.
Stainless Steel 321 Hexagonal Bars Corrosion-resistant product available in sizes from 0.5″ to 4″ across flats. Used in aerospace and chemical industries where high-temperature resistance is required.
Stainless Steel 321 T-Bars Corrosion-resistant product with dimensions ranging from 0.5″ x 0.5″ to 6″ x 6″. Suitable for structural support and applications demanding high-temperature stability and strength.
Stainless steel 321 bars are commonly used in applications that need heat resistance, corrosion protection, and structural reliability. Typical applications include exhaust manifolds, furnace parts, heat exchangers, chemical processing equipment, and boiler components. Their ability to withstand thermal fatigue and resist oxidation makes them perfect for systems that are subjected to continuous or cyclic heating. Industries like aerospace, petrochemical, marine, and power generation depend on 321 bars for safe, durable, and corrosion-resistant performance in high-temperature operating conditions.
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