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Stainless Steel 321 Round Bar Manufacturer

Siddhagiri Metals and Tubes is a supplier of ASTM A479 / ASTM A276 Round Bars in Stainless Steel 321 material
Other Names: ASTM A479, ASTM A276, Stainless Steel Bars, Stainless Steel Round Bars, Stainless Steel Hex Bar, Stainless Steel Square Bar, Stainless Steel Flat Bar, ASTM A276 Bar
Material: 321
Brand: Siddhagiri Metals and Tubes
Manufacturer: Siddhagiri Metals and Tubes
Rating: 4.5/5 based on 88 customer reviews

AISI 321 Stainless Steel Round Bar Supplier • ASTM A479 / ASTM A276 • Stainless Steel Bar

Siddhagiri Metals and Tubes is a supplier and stockist of AISI 321 Stainless Steel Bar in accordance with ASTM A479 and ASTM A276 standards and specifications. We specialise in manufacturing and stocking 321 Bars available from 50 mm to 6000 mm Long in size. Contact us for best price.

Round bars are most frequently used to make parts such as gears, shafts, axles, and flywheels for rotating machinery applications. Round Bars can also be engineered and used for manufacturing of seamless pipe and tubing used in oil drilling, military, and other applications. 321 Round bars conform to ASTM, UNS, ASME, UNS, ANSI, EN standards and specifications. Round Bar is available in a wide variety of sizes ranging from 10 mm to 125 mm. Stainless Steel Bar available in following forms Round Bar, Hex Bars, Flat Bar, Square Bar. Round bars are typically used in Engineering Construction, Residential Construction, Non-Residential Construction, Mining Infrastructure, Transport and Storage Manufacturing.

Siddhagiri Metals and Tubes offers a comprehensive range of Stainless Steel Round Bar which is available in Alloy and Stainless Steel grades. We pride ourselves on supplying Stainless Steel Bars to suit your exact requirements. Our Round bars are finished according to, En, BS, ANSI, ASME specifications. The length of the round bar is 50 mm to 6000 mm long and it can be Single Random, Double Random and Cut Length. The characteristics of high resistance to thermal oxidation, corrosion resistance and high strength in our round bar meet the requirements for use in numerous applications within the aerospace, chemical processing, thermal processing, oil & gas, pharmaceutical and bio synthetic and motorsport industries. We supply SS 321 round bars with diameters between 0.5 mm to 500 mm.

Our company has been exporting 321 Round bars (ASTM A276/A479)Globally and has attained a recognition in many countries. We have exported to countries like Europe, Australia, Japan, Indonesia, South Africa, Thailand, UAE, Qatar, etc.

  • Bar Specification: Material 1.4541, EN 1.4541, UNS S32100, JIS SUS 321, BS 321S31, SS 2337, ASTM A479, ASTM A276
  • Thickness: 50 mm to 6000 mm Long
  • Type: Stainless Steel Bar
  • Form: 321 Round Bar, 321 Hex Bars, 321 Flat Bar, 321 Square Bar
  • Length: Single Random, Double Random & Cut Length
  • Finish: Bright and Black Finish
  • Origin: Indian Origin, European Origin, Japanese Origin
  • Testing and Documents: Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, Destructive Test Report, Non Destructive Test Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports
  • Packing: Packed in Wooden Boxes, Bubble wraps, Steel Strips Bundled, or as per Customers Requests

AISI 321 Bar Sizes in Stock

Material Diameter Length Make
Stainless Steel Round Bar, Stainless Steel Flat Bar, Stainless Steel Hex Bar 0.5 mm to 500 mm 50 mm to 6000 mm Long Indian, European and Japanese origin

Forms of AISI 321 Stainless Steel in Stock

In Stock Round Bar Supplier

Stainless Steel Round Bar

SS 321 Round Bars available in 0.5 mm to 500 mm Diameter

In Stock Hex Bar Supplier

Stainless Steel Hex Bar

SS 321 Hex Bar ASTM A479 /A276

In Stock Flat Bar Supplier

Stainless Steel Flat Bar

SS 321 Flat Bar Supplier and Manufacturer ASTM A479 /A276

  • Chemical Properties
  • Mechanical Properties
  • Physical Properties
  • C. Si Mn P S Cr Ni N Ti
    MIN - - - - - 17.000 9.000 - -
    MAX 0.080 0.750 2.000 0.045 0.030 19.000 12.000 0.100 0.700
  • Yield Strength
    0.2% Proof
    (MPa)
    Tensile strength
    (MPa)
    Elongation
    (% in 50mm)
    Hardness
    (HRB)
    MIN 205 515 40.00  
    MAX       95
  • Density lb/in³ 0.285
    kg/dm³ 7.9
    Modulus of Elasticity psi 29 x 10-6
    GPa 200
    Thermal Conductivity Btu/ft hr°F 8.7
    W/m°C 15
    Heat Capacity Btu/lb°F 0.12
    J/kg°C 500
    Electrical Resistivity Ω-inch 27.6 x 10-6
    µΩm 0.73
    Poissons ratio   0.3

Properties of AISI 321 Stainless Steel

321 SS Cold Forming

Type 321 is easliy cold formed due to its ductile nature.

321 SS Hot Forming

Type 321 can be readily formed and drawn.

321 SS Machining

Type 321 is less machineable than Type 410 Stainless Steel.

321 SS Welding

Type 321 is easily weldable by all standard techniques. No post weld treatment is required.

321 SS Heat Treatment

Type 321 is non-hardenable by heat treatment. 321 is annealed by heating it to 1750 – 2050 °F (954 – 1121°C), then water quench or air cool.

Services We Offer

Documentation

Documentation is a very important part of the products we supply, and we work continuously to enhance the efficiency of the document-handling process without compromising quality of the product. Documents provided along with the shipment include Certificate of Origin, Material Test Certificate as per EN 10204 3.1 and 10204 3.2, NACE MR10103 and NACE MR0175 certified Test Certificates.

Quality Assurance

Stainless Steel Bars are manufactured and controlled to international standards such as ASTM, ASME, BS, MSS, EN, DIN or WERKSTOFFE. Our products undergo stringent quality tests before they are dispatched.

Material Testing

PMI Testing, Ultrasonic Test, Mechanical Testing, Spectro Tests for Chemical Analysis of the grade, Flaring Test, IGC, etc. are some of the tests conducted at our facility. We welcome stage wise inspection from any of your representative or third party inspection agencies.

Packing and Delivery

The product is wrapped and packed in wooden crates or carton boxes. Our primary goal is to deliver quality products in time, no matter where the client is located.

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