If you are looking for S32205/S31803 duplex stainless steel round bars, we offer high-performance round bars suitable for chemical, petrochemical, and marine engineering applications requiring exceptional corrosion resistance and strength. Our duplex stainless steel round bars are available in diameters ranging from 6 mm to 150 mm, with standard lengths of 1-6 meters, and we also offer custom sizes, precision cutting, and heat treatment services.
Our S32205/S31803 duplex stainless steel round bars feature a balanced ferrite-austenite microstructure design, providing excellent resistance to pitting and stress corrosion cracking while maintaining high mechanical strength. Typical mechanical properties include tensile strength ≥700 MPa, yield strength ≥450 MPa, and elongation ≥25%. The chemical composition conforms to ASTM A276/UNS S32205/S31803 standards, containing 22-23% chromium, 5-6% nickel, 3% molybdenum, and ≤0.03% carbon. We ensure consistent dimensional accuracy, high surface finish, and provide quality certifications such as ISO, SGS, or BV.
ASTM A276 Duplex 2205 Round Bar Specification
| Grade | Duplex 2205 – UNS S32205 |
|---|---|
| Specification | ASTM A276 UNS S32205, 2205 Duplex Stainless Steel |
| Standard | ASTM, EN, JIS, ASME DIN, AISI, API, BS Round Bars |
| Length | 3 to 6 meter, Custom Cut Lengths |
| Round bars size | Diameter: 3mm - 450mm DIA |
| Flat bar size | Thickness: 2mm~100mm |
| Width: 10mm~500mm | |
| Square bar size | 4mm*4mm~100mm*100mm |
| Angle bar size | 3mm* 20mm* 20mm~12mm* 100mm* 100mm |
| Hex Bar size | 2mm~100mm |
| Rectangles Size | 33mm x 30mm to 295mm x 1066mm |
| Billet Size | 1/2" to 495mm Diameter |
| Finish | Grinding, Turned, Black, Rough Polish, NO.4 Finish, Centreless Ground, Bright Polished,Matt Finish & BA Finish |
| Tolerance | H13K9, K10, K11, K12, H12, H10, H8, H11, H9 or as per clients' requirements |
| Condition | Cold Drawnd Pulished Cold Drawn Centreless Ground & Polished, Annealed round bar, Sheared & Edged, Rolled Flat |
| Technique | Duplex 2205 Cold Rolled, Hot Rolled, Forged Round Bar, Cold Drawn, Rod |
| Form | Half Round,Round, Hex (A/F), Triangle, Rectangle, Rod, Precision Ground Bar, Square, Profiles, Forging, Round Rod, Hollow, Rings, Blocks, Billet, Ingot, Threaded, T-Bar, Half Round Bar, Flat Bar, Channel Bar, I/H Bar, Angle Etc. |
| Manufacturing Process |
Surface finish 0.5 µmm to 1.5µmm max Peeled Bars: Dia. Ø15 mm -120 mm. Peeled, Straightened, Centreless Ground & Polished. Straightness upto 0.5mm/ mtr to 1mm /mtr. 240,400,600 Grit Belt Pol Cold Drawn Bright Bar: Dia. 2.5 mm to 14 mm. Annealed, Pickled, Cold Drawn, Centreless Ground & Polished. |
| Heat Treatment |
Solution Annealing, Soft Annealing, Hardening & Tempering & Normalizing, Oil & Water Quenching. |
| Tolerances | according to EN 10278 - ISO 286-2 |
Duplex UNS S31803 Rod & Bars & Super Duplex S32750 / S32760 Rod & Bar Chemical Composition :
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| S31803 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
| S32750 | 0.030 max | 1.20 max | 0.80 max | 0.035 max | 0.020 max | 24.00 – 26.00 | 3.00 – 5.00 | 6.00 – 8.00 | 0.24 – 0.32 | 58.095 min |
Duplex UNS S31803 Rod & Bars & Super Duplex S32750 / S32760 Rod & Bar Mechanical properties :
|
Grades |
Density (g/cm 3) |
Density (lb/in 3) |
Melting Point (°C) |
Melting Point (°F) |
|
S31803 / S32205 |
7.805 |
0.285 |
1420 – 1465 |
2588 – 2669 |
S31803 Duplex Steel Stainless Steel Round Bar Main application
Construction engineering: railings, curtain walls, structural supports
Mechanical manufacturing: shafts, screws, tool components
Medical devices: surgical instruments, implants
Food industry: Food processing equipment
Chemical equipment: storage tanks, pipelines, heat exchangers
| Quality & Inspection |
Bundles are made of 500/1000kgs We issue EN10204/3.1 Certificate as per ADW0 Free from any internal defects All required Mechanical and metallurgical tests are carried out at our works. Each lot is tested and ensured that material is free from Radio active contamination. Each Bar is tested for size tolerance,Ovality,length and Roughness. Container is fumigated before stuffing. All wooden box /blockes are also fumigated. |
|---|
Testing and Documentation: Factory test certificate, EN 10204 3.1, chemical report, mechanical report, destructive testing report, non-destructive testing report, PMI test report, visual inspection report, third-party inspection report, NABL certified laboratory report.
Packaging: Wooden crate packaging, bubble wrap packaging, steel strapping, or packaging according to customer requirements.
