What are Stainless Steel 321 / 321H Bars?

Stainless Steel 321 and 321H bars are exceptional alloys that belong to the austenitic stainless steel family. Renowned for their high-temperature resistance and corrosion-resistant properties, these bars find extensive use in various industrial applications where durability and reliability are paramount.

Features of SS 321 Bars:Stainless Steel 321 bars offer a unique combination of features that make them highly sought after in the manufacturing and engineering sectors. One of the standout characteristics is their exceptional resistance to intergranular corrosion, making them suitable for applications involving exposure to elevated temperatures. SS 321 bars also exhibit excellent welding and forming capabilities, providing versatility in fabrication processes. Additionally, these bars maintain their structural integrity at high temperatures, ensuring reliable performance in demanding environments.

Features of SS 321H Bars: Stainless Steel 321H bars, an elevated carbon version of SS 321, are specifically designed to provide enhanced high-temperature strength. The higher carbon content in SS 321H bars promotes better creep resistance and improved mechanical properties at elevated temperatures. This makes them particularly well-suited for applications where sustained high temperatures are a critical factor.

Stainless Steel 321 Bars

Sizes: SS 321 and SS 321H bars are available in a wide range of sizes to accommodate various industrial requirements. Commonly offered in round, square, and hexagonal shapes, these bars come in different diameters and lengths, allowing for flexibility in design and fabrication.

321 / 321H Stainless Steel Bars Specifications

Specifications ASTM A276 / A479, ASME SA276 / A479
Dimension Standard EN, DIN, JIS, ASTM, BS, ASME, AISI
Bar Diameter 3 ~ 800mm
Hex Bar size 2-100mm A/F
Flat bar size Thickness: 2 -100mm.
Width: 10 to 500mm.
Square bar size 4 to 100mm
Rectangular Bars Size: 33 x 30mm to 295 x 1066mm.
Thickness: 3.0 to 12.0mm.
Hollow Bars 32mm OD x 16mm ID to 250mm OD x 200mm ID)
Billet Size 1/2 to 495mm Diameter
Finish Cold (bright) drawn, centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black
Tolerance H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients requirements
Bar Surface Bright, Hot Rolled Pickled, Cold Drawn, Sand Blasting Finished, Polished, Hairline
Rolled Bars Condition Hardened & tempered, annealed
Cold Rolled Bar Technique Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod
Form Round, Rod, T-Bar, Channel Bar, Precision Ground Bar, Flat Bar, Square, Blocks, Round Rod, Rings, Hollow, Triangle, Rectangle, Hex (A/F), Threaded, Half Round Bar, Profiles, Billet, Ingot, I/H Bar, Forging etc.

321 / 321H Stainless Steel Bars Manufacturing Process

Melting

The first step in the process is melting raw materials in an electric furnace. These raw materials are typically iron ore, chromium, nickel, and other elements in exact amounts.

Hot Rolling

After being heated, the billets are shaped into long, thin rods by going through a series of rolling mills. Because the metal is heated above its recrystallization temperature during this operation, it is known as hot rolling.

Pickling

The pickling process is used to the bars in order to eliminate any oxide, scale, or other surface contaminants. Usually, an acid solution is used for this.

Cutting

Lastly, shearing machines or other cutting techniques are used to cut the rods to the required length.

Bars Manufacturing Process

Stainless Steel 321 / 321H Round Bars Equivalent Material

STANDARD UNS WNR. EN JIS
SS 321 S32100 1.4541 X6CrNiTi18-10 SUS 321

Composition of SS 321/321H Bars:

Both SS 321 and SS 321H bars share a similar composition, primarily consisting of iron, chromium, nickel, and a small amount of manganese. The addition of titanium in SS 321 stabilizes the alloy against sensitization during welding, preventing the formation of harmful carbide precipitates. In SS 321H, the higher carbon content enhances the overall strength and performance at elevated temperatures.

Grade C Mn Si P S Cr Mo Ni Ti
SS 321 0.08 max 2.0 max 1.0 max 0.045 max 0.030 max 17.00 - 19.00 0.10 max 9.00 - 12.00 5(C+N) – 0.70 max

321 / 321H Stainless Steel Round Bars Mechanical Properties

Grade Density Melting Point Tensilee Strength Yield Strength (0.2%Offset) Elongation
SS 321 8.0 g/cm3 1457 °C (2650 °F) Psi – 75000 , MPa – 515 Psi – 30000 , MPa – 205 35 %

Buy High Quality 321 / 321H Stainless Steel Round Bars.

Give us a call or send us an email to discuss how we can help you build your business. Working with such an esteemed client as you will make us happy.

Types Of Stainless Steel 321 / 321H Bars

Round Bar

SS 321 / 321H Round Bar

Square Bars

SS 321 / 321H Square Bar

Flat Bars

SS 321 / 321H Flat Bar

Hex Bars

SS 321 / 321H Hex Bar

Bright Bar

SS 321 / 321H Bright Bar

Polished Bars

SS 321 / 321H Polished Bar

Threaded Rod

SS 321 / 321H Threaded Rod

Rectangular Bar

SS 321 / 321H Rectangular Bar

We also supply 321 / 321H Stainless Steel Round Bars at the best price. You can check our latest 321 / 321H Stainless Steel Bars price list. Contact Tricon Steel & Alloys today for a best offer & competitive quotation Of 321 / 321H Stainless Steel Bars.

Applications of Stainless Steel 321/321H Bars:

The versatility of SS 321 and SS 321H bars makes them indispensable in numerous applications across diverse industries. These bars are widely used in the manufacturing of heat exchangers, chemical processing equipment, and aircraft components. The high-temperature resistance of these bars makes them suitable for applications in furnace components, thermal oxidizers, and exhaust systems. The exceptional corrosion resistance ensures longevity in chemical and petrochemical processing plants.

Export Countries

have Questions?
Call Now!

back top