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321 Stainless Steel Round Bar

321 Stainless Steel Round Bar

We are a 321 stainless steel round bar supplier. We offer various types of products, including:

UNS S32100, 1.4541, 321 hot rolled round bar, 321 cold drawn round bar, 321 polished round bar, 321 precision ground round bar, 321 annealed round bar, 321 hex bar, and 321 flat bar.

Standard

ASTM A216, ASTM A240, ASTM A312

Grade

0Cr18Ni10Ti, 1.4541, 1Cr18Ni11Ti, SUS324, X6CrNiTi18-10

Length

3 m (10 ft) to 6 m (20 ft), Customized

Diameter

6 mm (0.24 in) to 200 mm (7.87 in), Customized

Surface Finish

NO. 4, No. 8, Passivation, SB

Form

Cold Drawn Round Bar, Customized, Flat Bar, Hexagonal Bar, Hot Rolled Round Bar, Polished Round Bar, Rod, Square Bar

321 Stainless Steel Round Bar

321 Stainless Steel Round Bar

The 321 Stainless Steel Round Bar is made from austenitic stainless steel. It contains a high chromium and nickel content, with titanium addition. It resists intergranular corrosion, and good weldability, and maintains strength and stability in elevated temperatures. Widely used in aerospace, chemical processing, and the production of exhaust manifolds and expansion joints.

Business Terms

Business Terms

Terms Specifications
Minimum Order Quantity: 5 Tons
Price: To be negotiated
Packaging Details:
As Requested
Delivery Time: Within 7-10 Working Days
Payment Terms: T/T, L/C, Credit Card
Supply Ability: 100000 Tons per month
Certification: RoHS, BIS, SABS, tisi, KS, JIS, ISO9001
Export To:
United States, United Kingdom, Australia, Canada, India, Korea, etc.

Chemical Compositions

Chemical Compositions

ElementCSiMnPSCrNiTiNFe
Composition (%)0.08 max0.75 max2.00 max0.045 max0.030 max17.00 – 19.009.00 – 12.005 * (C + N) min, 0.70 max0.10 maxBalance

Mechanical Properties

Mechanical Properties

Mechanical PropertyValue (Metric)Value (Imperial)
Tensile Strength515-720 MPa74,700-104,400 psi
Yield Strength205 MPa29,700 psi
Brinell Hardness (HB)150-220 HB150-220 HB
Rockwell Hardness (HRC)20-30 HRC20-30 HRC
Vickers Hardness (HV)160-220 HV160-220 HV
Elongation40-60%40-60%
Elastic Modulus193-200 GPa28,000-29,000 ksi

Heat Treatment

Heat Treatment

There are some stainless steel bars undergoing heat treatment.
  1. Normalizing
    • Not applicable for 321 stainless steel round bars.
  2. Annealing
    • Heat to 950°C to 1120°C (1740°F to 2048°F) and hold at temperature. Then slowly cool in the furnace.
    • Softens the material, relieves internal stresses, and enhances ductility.
  3. Stress Relieving
    • Heat to 450°C to 600°C (842°F to 1112°F) and hold at temperature. Cool in the air.
    • Reduces residual stresses and improves dimensional stability.
  4. Stabilization
    • Heat to 870°C to 900°C (1600°F to 1650°F) and hold at temperature. Then air cool.
    • Enhances resistance to intergranular corrosion.
  5. Quenching
    • Not applicable to 321 stainless steel round bar.

Characteristic

Characteristic

  • Heat Resistance: Performs well in high-temperature environments without losing strength.
  • Corrosion Resistance: Resists oxidation and intergranular corrosion, even after exposure to high temperatures.
  • Formability: Can be easily formed and machined into complex shapes.
  • Weldability: Easily welded without losing its strength or corrosion resistance.
  • Durability: Offers long-lasting performance, even in demanding conditions.

Our Service

Our Service

1.Welding

2.Metal Fabrication

3.CNC Machining

4.Lathe

5.Forming

6.OEM/ODM

7.Quenching 

8.Tempering

UT And Hardness Testing

UT And Hardness Testing

UT And Hardness Testing Info

Surface Finish

Surface Finish

Packing

Packing

At SteelPRO Group, we understand that the quality of your 321 Stainless Steel Round Bar doesn’t just depend on how it’s made—it’s also about how it arrives. We provide:

  • Robust Protection: We use reinforced wooden crates, metal banding, and protective layers to shield your products from impacts and environmental factors.
  • Secure Handling: Every package is tightly secured to prevent any movement during transit, minimizing the risk of damage.
  • Custom Packaging Solutions: No two orders are the same, so we tailor our packaging to meet the specific needs of your order.
stainless steel bars packing
stainless steel bars packing
stainless steel bars packing
stainless steel bars packing
stainless steel bars packing
stainless steel bars packing

Why Choose Us

Why Choose Us

There are some 347 stainless steel bar in the factory.
  • Superior Craftsmanship: Our 321 Stainless Steel Round Bars are produced with precision and care, ensuring top quality for every project.
  • Unmatched Value: We deliver exceptional products at competitive prices, maximizing your return on investment.
  • Personalized Service: We customize our products and services to meet your specific needs, ensuring your satisfaction with every order.
  • Swift Delivery: Our efficient logistics ensure your order arrives on time, no matter where you are.
At SteelPRO Group, we are committed to your success, providing support and expertise whenever you need it.
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