Harsh Metalloys is a top-notch producer and supplier of Stainless Steel 321 bars in Mumbai, India. Focusing on quality, innovation, and customer satisfaction, the company provides high-performance stainless steel bars suited for industrial applications where performance matters. Harsh Metalloys’ Stainless Steel 321 bars have an excellent resistance to oxidation as well as intergranular corrosion, especially in high-temperature conditions. With the aid of sophisticated manufacturing technology and rigorous quality control measures, Harsh Metalloys supplies robust, precision-engineered products to customers in India and worldwide, positioning itself as a go-to partner for high-quality stainless steel bar solutions.
Harsh Metalloys’ stainless steel 321 bars in Mumbai, India, consist of 17–19% chromium, 9–12% nickel, and titanium, which stabilizes the alloy against intergranular corrosion. This austenitic stainless steel possesses superior high-temperature properties and resistance to oxidation. The bars possess a tensile strength of about 515 MPa and a yield strength of about 205 MPa, along with excellent creep and stress rupture resistance. Such mechanical qualities, coupled with resistance to corrosion, render SS 321 bars best suited for processes that carry out repeated thermal cycling. Harsh Metalloys provides uniform quality and performance by conducting stringent testing and manufacturing accuracy.
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 Harsh Metalloys, 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.
Harsh Metalloys in Mumbai, India, produces Stainless Steel 321 bars that are extensively used in high-temperature and corrosive environment-resistant applications. Bars from Harsh Metalloys are best suited for application in heat exchangers, furnace parts, thermal oxidizers, jet engine components, and chemical processing equipment. They are also applied in the construction of exhaust manifolds, expansion joints, and pressure vessels. Their resistance to oxidation and retention of structural stability under severe thermal stress makes them apt for aerospace, petrochemical, power generation, and maritime industries. Harsh Metalloys offers SS 321 bars that ensure consistent performance and longevity in high-pressure applications.







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