SUS409 Stainless Steel Plate & Coil: Heat-Resistant Ferritic Industrial Plate/Coil

What is SUS409 Stainless Steel Plate & Coil?

SUS409 stainless steel plate & coil is a titanium-stabilized ferritic heat-resistant stainless steel product, tailored for medium-high temperature industrial scenarios. It features excellent high-temperature oxidation resistance and cost-effectiveness, making it a preferred material for heat-resistant plates and coils in general industrial and automotive fields.

Equivalent Grades (Horizontal)

UNS: S40900 | JIS: SUH409/SUS409L | GB: 022Cr11Ti | EN: X2CrTi12 | W.Nr.: 1.4512

Chemical Composition (wt%, Horizontal)

C: ≤0.03 | Si: ≤1.00 | Mn: ≤1.00 | P: ≤0.045 | S: ≤0.030 | Cr: 10.50-11.75 | Ti: 6×C-0.75 | Fe: Balance

Key Properties (20°C, Annealed, Horizontal)

Density: 7.75g/cm³ | Melting Point: 1425-1510°C | Tensile Strength: ≥415N/mm² | Yield Strength: ≥205N/mm² | Elongation: ≥20% | Hardness: ≤183HB

Core Characteristics

• Titanium stabilization: Prevents intergranular corrosion and enhances high-temperature structural stability, suitable for long-term heat exposure of plates/coils • Good high-temperature oxidation resistance: Forms a dense protective oxide film, enabling service at up to 800°C in oxidizing atmospheres • Excellent formability & weldability: Easy to cut, bend, roll and weld, adapting to plate/coil deep processing and assembly • Cost-efficient heat-resistant solution: Widely used in automotive exhaust systems, industrial furnace flues, heat exchanger plates and general heat-resistant components

SUS409 vs SUS430 Stainless Steel Plate & Coil (Horizontal)

Cr Content: SUS409 (10.50-11.75%) | SUS430 (16.00-18.00%) | High-Temp Resistance: SUS409 (Good) | SUS430 (General) | Cost: SUS409 (Low) | SUS430 (Medium) | Application: SUHS409 (Heat-Resistant) | SUS430 (Decorative/Kitchen)

 

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.