SUS321 Stainless Steel Plate & Coil: Titanium-Stabilized Post-Weld Corrosion Resistant Plate/Coil

What is SUS321 Stainless Steel Plate & Coil?

SUS321 stainless steel plate & coil is a titanium-stabilized austenitic product, designed to eliminate post-weld intergranular corrosion by fixing carbon atoms with titanium. It excels in high-temperature welding scenarios across industrial sectors for plate/coil applications.

Equivalent Grades (Horizontal)

UNS: S32100 | JIS: SUS321 | GB: 06Cr18Ni11Ti | EN: X6CrNiTi18-10 | W.Nr.: 1.4541

Chemical Composition (wt%, Horizontal)

C: ≤0.08 | Si: ≤1.00 | Mn: ≤2.00 | P: ≤0.045 | S: ≤0.030 | Cr: 17.00-19.00 | Ni: 9.00-12.00 | Ti: ≥5×C | Fe: Balance

Key Properties (20°C, Annealed, Horizontal)

Density: 7.93g/cm³ | Melting Point: 1400-1450°C | Tensile Strength: ≥515N/mm² | Yield Strength: ≥205N/mm² | Elongation: ≥40% | Hardness: ≤201HB

Core Characteristics

• Titanium stabilization: Prevents post-weld intergranular corrosion, ensuring structural reliability of welded plate/coil components • Good high-temperature stability: Suitable for long-term service at up to 870°C, ideal for heat exchanger plates, boiler tubes and high-temp coils • Excellent processability: Easy to weld and form, compatible with welding-intensive plate/coil installation and processing • Superior to SUS304 in high-temperature scenarios: Balances corrosion resistance and cost for industrial high-temp plate/coil applications

SUS321 vs SUS304 Stainless Steel Plate & Coil (Horizontal)

Stabilizer: SUS321 (Titanium) | SUS304 (None) | Post-weld Corrosion: SUS321 (Excellent) | SUS304 (Poor) | High-Temp Limit: SUS321 (≤870°C) | SUS304 (≤800°C) | Application: SUS321 (High-Temp Welding) | SUS304 (General Purpose)

 

Stainless Steel Suppliers

If you have project requirements for stainless steel, we welcome your order. GNEE has a large inventory of popular products for you to choose from. It can be processed into various practical product forms, including plates, coils, tubes, bars, wires, etc. For detailed chemical composition information and free samples, please contact our factory immediately. We offer competitive prices and excellent service.Email: info@gneestainless.com

 

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.