Forged Stainless Steel Bar Grade 321 Cold Rolled Diameter 140-300mm SS Round Bar
Price:
US $2.55-3.66 / kg
MOQ:
50 kg
Delivery Time:
Negotiable
Product Description
Forged Stainless Steel Bar Grade 321
Diameter 140 - 300mm SS Bar
Product Specifications
| Product | Stainless Steel Round Bar |
|---|---|
| Grade | 316L / 1.4404 / AISI316L |
| Standard | ASTM A276/276M |
| Diameter | 8 - 300mm |
| Length | 6m/pcs or custom cutting available |
| Surface | Black, bright |
| Other Grades | 304, 310S, 316L, 317L, 321, 410, 420, 431, 440A/B/C, 2205, 2507, 630, 631, 904L, etc. |
| Services | Cutting, polishing, heat treatment |
Stainless Steel Bar Product Range
| Product Name | Size Range | Main Grades |
|---|---|---|
| Stainless Steel Round Bar (hot rolled black surface) | 8 - 300mm | 304, 304L, 309S, 310S, 316L, 316Ti, 317L, 321, 347, 410, 420, 431, 440A/B/C, 2205, 2507, 904L, 254SMO, 17-4PH, 17-7PH, etc. |
| Stainless Steel Round Bar (bright polished) | 3 - 50mm | 201, 304, 316L, 310S, 2205, 630, etc. |
| Stainless Steel Square Bar | 4×4 - 50×50mm | 201, 304, 316L, 310S, 410, 420, etc. |
| Stainless Steel Hexagon Bar | S4-S70 | 201, 304, 316L, 310S, 410, 420, etc. |
| Stainless Steel Flat Bar | 10×3 - 100×40mm | 304, 304L, 309S, 310S, 316L, 316Ti, 317L, 321, 347, 410, 420, 431, 440A/B/C, 2205, 2507, 904L, 254SMO, 17-4PH, 17-7PH, etc. |
| Stainless Steel Angle Bar | 30×30 - 200×200mm | 201, 304, 316L, 310S, 2205, etc. |
| Stainless Steel Channel Bar | 50×25 - 200×100mm | 201, 304, 316L, 310S, 2205, etc. |
About 321 Stainless Steel
Alloy 321 (UNS S32100) is a titanium-stabilized austenitic stainless steel that provides excellent resistance to intergranular corrosion following exposure to temperatures between 800-1500°F (427-816°C). The addition of titanium stabilizes the alloy against chromium carbide formation.
This alloy offers superior mechanical properties for high-temperature applications, with higher creep and stress rupture properties than Alloy 304 and 304L. It maintains excellent oxidation resistance up to 1500°F (816°C) and possesses good low-temperature toughness.
Alloy 321H (UNS S32109) is the higher carbon (0.04-0.10) version developed for enhanced creep resistance and higher strength at temperatures above 1000°F (537°C). Both versions cannot be hardened by heat treatment, only by cold working, and can be easily welded and processed using standard fabrication practices.
Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Ni | Other |
|---|---|---|---|---|---|---|---|---|
| 321 | 0.08 max | 2.00 max | 0.75 max | 0.045 max | 0.030 max | 17.0-19.0 | 9.0-12.0 | Ti=5(C+N) min, 0.70 max |
| 321H | 0.04-0.10 | 2.00 max | 0.75 max | 0.045 max | 0.030 max | 17.0-19.0 | 9.0-12.0 | Ti=4(C+N) min, 0.70 max |
| 347 | 0.08 max | 2.00 max | 0.75 max | 0.045 max | 0.030 max | 17.0-19.0 | 9.0-13.0 | Nb=10(C+N) min, 1.0 max |
Mechanical Properties
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness Rockwell B (HR B) max | Hardness Brinell (HB) max |
|---|---|---|---|---|---|
| 321 | 515 | 205 | 40 | 95 | 217 |
| 321H | 515 | 205 | 40 | 95 | 217 |
| 347 | 515 | 205 | 40 | 92 | 201 |
Typical Applications
- Aircraft exhaust manifolds
- Expansion joints
- Bellows
- Furnace parts
- Heating element tubing
- Heat exchangers
- Woven or welded screens for high-temperature mineral processing
- Spiral welded tube for burner pipes and flues
Product Images
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
JIANGSU MITTEL STEEL INDUSTRIAL LIMITED
Location
No.283-1, Youyi Middle Road, Xishan District, Wuxi City, Jiangsu Province
Contact Person
Gao Ben