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321 Stainless Steel Bar

High Stability and Heat Resistance

Product Name: 321 Stainless Steel Bar
Standard: ASTM A276, JIS G4303, GB/T 3280
Grade: 321 (UNS S32100, EN 1.4541)
Diameter: 5 – 800mm (customizable)
Surface Finish: 2B, BA, NO.4, HL
Tensile Strength: ≥ 620 MPa
Yield Strength (0.2% Offset): ≥ 240 MPa
Elongation: ≥ 40% (in 50mm)
Hardness (Brinell): ≤ 201 HBW
Density: 7.93 g/cm³
MOQ: 1 Ton

Free Samples Available!
Experience the quality of our products firsthand—request your free sample today. We’re here to help and welcome your inquiries.

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Discover Superior Performance with Our 321 Stainless Steel Bars

TISCO Steel Group (Jiangsu) Co., Limited is your premier source for high-quality stainless steel products, proudly representing industry-leading brands such as TISCO, Tsingshan, BAOSTEEL, and ANSTEEL. Our 321 Stainless Steel Bar is engineered for exceptional performance in high-temperature applications, making it an essential choice for various industries.

Why Choose 321 Stainless Steel?

The 321 stainless steel grade is an austenitic alloy that contains titanium, enhancing its resistance to corrosion and oxidation at elevated temperatures. This unique composition makes it particularly suitable for applications in:

  • Aerospace
  • Automotive
  • Chemical Processing

Unlike standard 304 stainless steel, 321 provides superior protection against intergranular corrosion, especially after welding, due to its low carbon content and the presence of titanium, which minimizes carbide precipitation.

Commitment to Quality

At TISCO Steel Group, we prioritize quality and compliance with international standards, including ASTM A276 and JIS G4303. Our 321 stainless steel bars undergo rigorous quality control processes to ensure they meet high performance and durability standards. We also offer customized sizing, cutting, and surface finishing services tailored to your specific project requirements.

Partner with TISCO Steel Group

By choosing TISCO Steel Group, you benefit from competitive pricing, expert technical support, and flexible ordering capabilities. Our commitment to understanding your unique needs ensures that we deliver tailored solutions that enhance your projects.

Get in Touch!

Partner with us for your stainless steel requirements and experience the quality and reliability that set us apart in the industry. Contact us today to learn more!

Common Surface Treatments

Product Detail Sheet

Product Name321 Stainless Steel Bar
Processing TechniquesAustenitic,Ferritic,Martensitic,Duplex,Cold Rolling,Hot Rolling
Grade201, 202, 301, 304, 304L, 309S, 310S, 316, 316L, 321, 409, 410, 410S, 430, 630, 2205, 2507 etc
Austenitic stainless steel200 Series: 201, 202
300 Series: 304, 304L, 309S, 310S, 316, 316L, 316Ti, 317L, 321, 347
Ferritic stainless steel409L, 430, 436, 439, 441, 444, 446
Martensitic stainless steel410, 410S, 416, 420J1, 420J2, 431,440,17-4PH
Duplex and special stainless steelS31803, S32205, S32750, 630, 904L
StandardASTM, GB,DIN, JIS etc
SurfaceN0.1, N0.4, 2D, 2B, HL, BA, 6K, 8K, etc
Delivery time3 to 15 days, subject to the customer and quantity
PackagingStandard export package
MOQ1 Ton
SampleFree sample application

Common Chemical Properties

UNSASTMENJISC%Mn%P%S%Si%Cr%Ni%Mo%
S201002011.4372SUS201≤0.155.5-7.5≤0.06≤0.03≤1.0016.0-18.03.5-5.5–
S202002021.4373SUS202≤0.157.5-10.0≤0.06≤0.03≤1.0017.0-19.04.0-6.0–
S301003011.4319SUS301≤0.15≤2.00≤0.045≤0.03≤1.0016.0-18.06.0-8.0–
S304003041.4301SUS304≤0.08≤2.00≤0.045≤0.03≤0.7518.0-20.08.0-10.5–
S30403304L1.4306SUS304L≤0.03≤2.00≤0.045≤0.03≤0.7518.0-20.08.0-12.0–
S30908309S1.4833SUS309S≤0.08≤2.00≤0.045≤0.03≤0.7522.0-24.012.0-15.0–
S31008310S1.4845SUS310S≤0.08≤2.00≤0.045≤0.03≤1.5024.0-26.019.0-22.0–
S316003161.4401SUS316≤0.08≤2.00≤0.045≤0.03≤0.7516.0-18.010.0-14.02.0-3.0
S31603316L1.4404SUS316L≤0.03≤2.00≤0.045≤0.03≤0.7516.0-18.010.0-14.02.0-3.0
S31703317L1.4438SUS317L≤0.03≤2.00≤0.045≤0.03≤0.7518.0-20.011.0-15.03.0-4.0
S321003211.4541SUS321≤0.08≤2.00≤0.045≤0.03≤0.7517.0-19.09.0-12.0–
S347003471.455SUS347≤0.08≤2.00≤0.045≤0.03≤0.7517.0-19.09.0-13.0–
S405004051.4002SUS405≤0.08≤1.00≤0.04≤0.03≤1.0011.5-14.5≤0.60–
S409004091.4512SUS409≤0.08≤1.00≤0.045≤0.03≤1.0010.5-11.75≤0.50–
S430004301.4016SUS430≤0.12≤1.00≤0.040≤0.03≤0.7516.0-18.0≤0.60–
S434004341.4113SUS434≤0.12≤1.00≤0.040≤0.03≤1.0016.0-18.0––
S444004441.4521SUS444L≤0.025≤1.00≤0.045≤0.03≤1.0017.5-19.5≤1.00–
S40300403–SUS403≤0.155.5-7.5≤0.04≤0.03≤0.5011.5-13.0≤0.60–
S4100004101.40006SUS410≤0.15≤1.00≤0.035≤0.03≤1.0011.5-13.5≤0.60≤1.00
S420004201.4021SUS420J10.16~0.25≤1.00≤0.04≤0.03≤1.0012.0-14.0≤0.75≤1.00
S440A440A1.4028SUS440A0.60~0.75≤1.00≤0.04≤0.03≤1.0016.0-18.0–≤0.75
S32750SAD25071.441 ≤0.03≤1.2≤0.035≤0.02≤0.8024.0-26.06.0-8.03.0-5.0
S31803SAF22051.4462 ≤0.03≤2.0≤0.03≤0.02≤1.0021.0-23.04.0-6.52.5-3.5
N08904904L1.4539 ≤0.0.3≤2.0≤0.035≤0.03≤1.0018.0-20.023.0-25.03.0-4.0

Stainless Steel Material Properties

GradesTensile Strength（ksi）Yield strength（ksi）2-inch Elongation (%)Section Shrinkage (%)Brinell Hardness
301110406070165
30290405570150
30390355055160
30485355570150
304L80305570140
31685356070150
316L78305565145
32185355565150
41075403570155
41675403065155
420955025–241
430F80452550165
15-516014515–330
17-4 (Condition A)1501101045332

Packaging & Shipping

📦 Advanced Protective Packaging
Every stainless steel product undergoes a meticulous, multi-layer packaging process designed to endure complex logistics challenges. We utilize VCI (Vapor Corrosion Inhibitor) rust-inhibiting film, reinforced steel-edge protectors, and customized wooden crates to prevent moisture damage, deformation, and handling accidents. Each package is clearly marked with product details and barcodes for full traceability and operational safety—guaranteeing your order arrives in perfect condition.

🚢 Trusted Shipping Partnerships
We collaborate with globally recognized container lines including ONE, ZIM, MSC, MAERSK, and COSCO, providing flexible and reliable freight solutions to major ports across North America, Europe, Southeast Asia, and beyond. Whether your needs require FOB, CIF, or EXW terms, we manage booking, documentation, and customs clearance to ensure seamless door-to-door delivery.

⏱️ On-Time Global Delivery
With established relationships with tier-1 carriers and experienced project logistics teams, we deliver on commitment—on schedule, on specification, and within budget. You receive not just premium stainless steel, but a logistics experience built on reliability and global execution capability.

Industry Application

🔗 The Value of Stainless Steel
Stainless steel is globally recognized for its outstanding corrosion resistance, strength, and adaptability—serving as an essential material across sectors such as construction, medical equipment, automotive manufacturing, and food processing. Yet, sourcing the appropriate grade involves navigating intricate specifications, diverse international standards, and unpredictable supply chain dynamics.

⚙️ How TISCO Simplifies Sourcing
At TISCO Steel Group (Jiangsu) Co., Limited, we streamline stainless steel procurement. As your dedicated supply partner, we deliver customized solutions—from precise material recommendations and fully certified quality assurance to tailored processing and dependable global shipping—all designed to match your project’s exact needs.

📞 Connect with Us
Explore our product portfolio online, request a personalized quote, or consult directly with our technical specialists. Let TISCO provide the reliable stainless steel solution your project deserves.

FAQ

  • What are the primary applications of 321 stainless steel bars?
    • 321 bars are commonly used in high-temperature applications such as aerospace, automotive exhaust systems, and chemical processing.
  • What advantages does 321 stainless steel offer?
    • It provides excellent heat resistance, corrosion resistance, and stability, particularly after welding.
  • How does 321 compare to 304 stainless steel?
    • 321 offers better high-temperature stability and resistance to intergranular corrosion compared to 304.
  • Can I customize the dimensions of the bars?
    • Yes, we offer various sizes and surface finishes to meet both standard and custom specifications.
  • Do you provide Mill Test Certificates (MTC) with your products?
    • Yes, all orders come with full traceability and Mill Test Certificates to ensure product quality.
  • What is the typical lead time for an order?
    • Lead times vary based on order size and specifications, but we strive for prompt fulfillment.
  • Are free samples available for evaluation?
    • Yes, we provide free samples so you can assess the quality of our 321 stainless steel bars.
  • What is the minimum order quantity (MOQ)?
    • Our minimum order quantity for 321 stainless steel bars is typically 1 ton.
  • Is technical support available for product selection?
    • Absolutely! Our team is ready to assist you in choosing the right material for your specific application needs.
  • What payment terms do you offer?
    • We offer flexible payment terms to accommodate our clients. Please contact us for more details.

Additional Services

We provide value-added services including rough machining, heat treatment, cutting, machining, rolling, welding, and surface treatment to ensure your finished product is delivered ready for finishing. All forgings are rough machined according to your specifications and include Mill Test Reports (MTR), Mechanical and Physical Property Reports, as well as Ultrasonic, X-Ray, and Non-Destructive Testing (NDT) reports (as ordered or specified).

By choosing TISCO Steel Group (Jiangsu) Co., Limited, you will receive professional solutions tailored to your needs.

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