SUS439 Stainless Steel Plate & Coil: Titanium-Stabilized Ferritic Industrial Plate/Coil

What is SUS439 Stainless Steel Plate & Coil?

SUS439 stainless steel plate & coil is a titanium-stabilized ferritic stainless steel product, optimized for anti-intergranular corrosion and high-temperature performance. It is a cost-effective alternative to austenitic grades for medium-temperature industrial plates/coils.

Equivalent Grades (Horizontal)

UNS: S43932 | JIS: SUS439 | GB: 022Cr18Ti | EN: X2CrTi18 | W.Nr.: 1.4510

Chemical Composition (wt%, Horizontal)

C: ≤0.03 | Si: ≤1.00 | Mn: ≤1.00 | P: ≤0.040 | S: ≤0.030 | Cr: 17.00-19.00 | Ti: 5×C-0.80 | Fe: Balance

Key Properties (20°C, Annealed, Horizontal)

Density: 7.70g/cm³ | Melting Point: 1425-1510°C | Tensile Strength: ≥450N/mm² | Yield Strength: ≥205N/mm² | Elongation: ≥22% | Hardness: ≤183HB

Core Characteristics

• Titanium stabilization: Fixes carbon atoms, preventing post-weld intergranular corrosion, ensuring performance stability • Good high-temperature oxidation resistance: Suitable for medium-temperature service up to 800°C, ideal for industrial heat-resistant plates/coils • Excellent formability & weldability: Easy to process into complex components, adapting to welding-intensive structures • Cost-effective alternative: Balances performance and price, used in heat exchangers, automotive exhaust parts and industrial pipeline plates

SUS439 vs SUS430 Stainless Steel Plate & Coil (Horizontal)

Stabilizer: SUS439 (Titanium) | SUS430 (None) | Post-weld Corrosion: SUS439 (Excellent) | SUS430 (General) | High-Temp Resistance: SUS439 (Better) | SUS430 (General) | Application: SUS439 (Industrial Heat-Resistant) | SUS430 (Decorative/Household)

 

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.