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China 321 Stainless Steel Bars Suppliers - High-Temperature Factory Direct Bright Drawn Round Bars
Product Details
Here's the scoop on what makes our 321 stainless steel bars stand out:
- Titanium stabilization prevents carbide buildup during welding—pretty important for weld integrity.
- They resist intergranular corrosion like a champ.
- Capable of handling oxidation and creep, even over long periods.
- Keep their strength at high temperatures impressively well.
- Easy to machine and form into whatever shape you need.
Available Shapes & Finishes: Round, square, and hex shapes with hot rolled, cold finished, turned, or centerless ground surface finishes. Precisely made to meet ASTM A276 and ASME SA479 standards for consistent, reliable quality in critical applications.
🔩 Common Applications: Aircraft exhaust systems, heat exchangers, boiler parts, industrial furnace components, chemical processing equipment, and thermal processing components. If your project demands high heat resistance combined with solid corrosion protection, our 321 Stainless Steel Bars are a great choice.
📩 Feel free to reach out today for more tech specs or to get a quote on standard or custom sizes. We're here to help you find the perfect fit!
| Austenitic Stainless Steel | 201, 301, 304, 305, 310, 314, 316, 321, 347, 370, etc |
| Martensitic Stainless Steel | 410, 414, 416, 416, 420, 431, 440A, 440B, 440C, etc |
| Duplex Stainless Steel | S31803, S32101, S32205, S32304, S32750, etc |
| Ferritic Stainless Steel | 429, 430, 433, 434, 435, 436, 439, etc |
Product Specification
| Material | 304, 304L, 309S, 310S, 316, 316L, 316Ti, 317, 317L, 321, 347H, 201, 202, 405, 409, 410, 420, 430, etc |
| Type | Round, square, hexagonal, flat, angle |
| Surface | Pickled, Black, Bright, Polishing, Blasting, etc |
| Specifications |
Round Bar: Diameter: 3mm ~ 800mm Angle Bar Size: 3mm×20mm×20mm ~ 12mm×100mm×100mm Square Bar Size: 4mm×4mm ~ 100mm×100mm Flat Bar Thickness: 2mm ~ 100mm, Width: 10mm ~ 500mm Hexagonal Size: 2mm ~ 100mm |
| MOQ | 1 Ton |
| Length | 6m, 5.8m, 3m or as required |
| Price Term | EX-Work, FOB, CFR, CIF, CNF |
| Payment Term | T/T, L/C, Western Union |
| Market | Europe, South America, Africa, Oceania — such as: Chile, Spain, USA, Germany, India, Dubai, Iraq, Vietnam, Ireland, Korea, Singapore, and so on. |
| Package | Bundled, wooden box for export standard package. |
| Delivery Time | Normally according to the order quantity |
Chemical Composition Table
| Chemical Component (%) | |||||||
| Grade ASTM | C | Si | Mn | S | P | Cr | Ni |
| 201 | ≤0.15 | ≤0.75 | 5.50–7.50 | ≤0.030 | ≤0.060 | 16.00–18.00 | 3.50–5.50 |
| 304 | ≤0.07 | ≤1.00 | ≤2.00 | ≤0.030 | ≤0.035 | 17.00–19.00 | 8.00–11.00 |
| 304L | ≤0.03 | ≤1.00 | ≤2.00 | ≤0.030 | ≤0.035 | 18.00–20.00 | 8.00–12.00 |
| 309S | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.030 | ≤0.035 | 22.00–24.00 | 12.00–15.00 |
| 310S | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.030 | ≤0.035 | 24.00–26.00 | 19.00–22.00 |
| 316 | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.030 | ≤0.035 | 16.00–18.00 | 10.00–14.00 |
| 316L | ≤0.08 | ≤1.00 | ≤2.00 | ≤0.030 | ≤0.035 | 16.00–18.00 | 12.00–15.00 |
Frequently Asked Questions
Q
What is the key advantage of 321 stainless steel bars over standard 304 stainless steel?
321 stainless steel contains titanium as a stabilizing element, which prevents carbide precipitation during welding and high-temperature service. This makes it significantly more resistant to intergranular corrosion compared to standard 304 stainless steel, especially in applications involving prolonged heat exposure.
Q
What shapes and surface finishes are available for your 321 stainless steel bars?
We offer 321 stainless steel bars in round, square, and hexagonal shapes. Available surface finishes include hot rolled, cold finished, turned, and centerless ground — allowing you to choose the best option for your specific application requirements.
Q
What industry standards do your 321 stainless steel bars comply with?
Our 321 stainless steel bars are precisely manufactured to meet ASTM A276 and ASME SA479 standards, ensuring consistent quality and reliable performance in critical industrial and structural applications.
Q
What are the typical applications for 321 stainless steel bars?
321 stainless steel bars are widely used in aircraft exhaust systems, heat exchangers, boiler parts, industrial furnace components, chemical processing equipment, and thermal processing components. They are ideal for any application requiring excellent high-temperature strength combined with strong corrosion resistance.
Q
What is the minimum order quantity (MOQ) and what are the available lengths?
The minimum order quantity is 1 Ton. Standard lengths available are 6m, 5.8m, and 3m. Custom lengths can also be arranged based on your specific project requirements.
Q
What payment and shipping terms do you offer?
We support multiple payment terms including T/T, L/C, and Western Union. For shipping, we offer flexible price terms: EX-Work, FOB, CFR, CIF, and CNF. Products are packaged in bundles or wooden export-standard boxes to ensure safe delivery worldwide.