Specifications of Stainless Steel 409 Sheet
The table below highlights key details of Stainless Steel 409 sheets, helping engineers and buyers understand their requirements.
| Specification | Detail |
|---|---|
| Standard | ASTM A240 / ASME SA-240 |
| Supplementary Standard | ASTM A480 |
| Thickness | 0.5 mm to 6 mm (26 ga to 3/16") |
| Width | 1000 mm, 1219 mm (48"), 1250 mm, 1500 mm |
| Length | 2000 mm, 2438 mm (96"), 2500 mm, custom lengths |
| Common Sheet Size | 4' × 8' (1219 mm × 2438 mm) |
| Form | Sheet, Coil, Strip, Shim Sheet |
| Finish | No. 1 (HR), No. 2D (CR), No. 2B (CR skin-passed) |
| Condition | Annealed |
Stainless Steel 409 Sheet Sizes & Dimensions
Stainless Steel 409 sheets offer versatile dimensions, ranging from 0.4mm to 6mm thickness, ideal for diverse industrial applications.
| Parameter | Specification |
|---|---|
| Thickness | 0.4 mm to 6.0 mm |
| Width | 1000 mm to 1500 mm |
| Length | 2000 mm to 6000 mm |
| Standard Sheet Sizes | 4’×8’, 4’×10’, 5’×10’ |
409 Stainless Steel Sheet Price
409 stainless steel sheet prices in India range from ₹110 to ₹200 per kg, and in the international market, range from $3 to $5.50 per kg. Pricing depends on thickness, width, finish, order quantity, and current raw material rates. As a ferritic grade with low nickel, 409 SS sheet is among the most affordable stainless flat products. Cold-rolled forms carry a premium over hot-rolled for tighter tolerances. Contact Sachiya Steel International for current pricing on Type 409 sheet.
Chemical Composition of 409 Stainless Steel Sheet
Chemical composition of ASTM A240 Type 409 (UNS S40900) sheet per the applicable standard is given below. Titanium stabilisation binds free carbon, preventing chromium carbide precipitation at grain boundaries during welding.
Mechanical Properties of 409 Stainless Steel Sheet
The table below shows the main mechanical properties of ASTM A240 Type 409 stainless steel sheet, including strength, hardness, elongation, density, and maximum service temperatures.
| Property | Value |
|---|---|
| Tensile Strength (min) | 380 MPa (55 ksi) |
| Yield Strength, 0.2% Offset (min) | 207 MPa (30 ksi) |
| Elongation in 50 mm (min) | 20% |
| Hardness, Brinell (max) | 207 HB |
| Hardness, Rockwell B (max) | 95 HRB |
Equivalent Grades of 409 Stainless Steel Sheet
The following table provides a comparison of international grades that are equivalent to 409 stainless steel sheet. This information assists buyers in aligning specifications with global standards.
| Standard | Designation |
|---|---|
| UNS | S40900 |
| EN 10088 | 1.4512 / X2CrTi12 |
| JIS | SUS 409 |
| GB/T | 06Cr11Ti |
| AFNOR (former) | Z6CT12 |
| BS | 409S |
409 Stainless Steel Sheet Industrial Applications
409 SS sheet serves 3 primary sectors where oxidation resistance at elevated temperatures and cost savings over austenitic grades are needed.
Automotive Exhaust Systems
Mufflers, catalytic converter housings, tailpipes and heat shields all rely on this TP 409 sheet. Its oxidation resistance up to 675°C and formability make it a direct, longer-lasting replacement for aluminised carbon steel.
Agricultural and Industrial Equipment
Alloy 409 sheet serves grain dryers, animal housing panels, fertiliser spreaders, and structural frames for farm machinery, while transformer cases and storage tanks also gain its lower-cost corrosion resistance compared to 304.
Heat Exchangers and Furnace Components
409 stainless steel sheet serves in air-preheater elements, furnace linings and heat recovery systems. Resistance to high temperatures up to 675°C.
409 vs 304 Stainless Steel Sheet
SS 409 and SS 304 sheets differ in chromium and nickel content, influencing corrosion resistance, cost and suitability for high-temperature, wet or aesthetically critical applications.
| Parameter | SS 409 Sheet | SS 304 Sheet |
|---|---|---|
| Material Type | Ferritic stainless steel | Austenitic stainless steel |
| UNS Designation | S40900 | S30400 |
| Chromium Content | 10.50–11.75% | 18–20% |
| Nickel Content | 0% | 8–10.5% |
| Corrosion Resistance | Moderate; suitable for mild corrosion and high-temperature service | Excellent; strong resistance in wet, humid, or food contact environments |
| Pitting & Crevice Corrosion Resistance | Low | High |
| Weldability | Good | Good |
| Mechanical Strength | Moderate | Higher than 409 |
| Best Use Case | Automotive exhausts, high-temperature moderate-corrosion applications | Food equipment, chemical processing, decorative or indoor applications |
| When to Choose | When cost efficiency and temperature resistance are priorities | When corrosion resistance, aesthetics, or moisture exposure is critical |
| Cost | Significantly lower | Higher |
409 vs 410 Stainless Steel Sheet
SS 409 and SS 410 sheets vary in their microstructure and hardening behaviour: 409 delivers superior formability and weldability, whereas 410 achieves greater strength when heat-treated.
| Parameter | SS 409 Sheet | SS 410 Sheet |
|---|---|---|
| Material Type | Ferritic stainless steel | Martensitic stainless steel |
| UNS Designation | S40900 | S41000 |
| Hardening Capability | Cannot be hardened by heat treatment | Can be heat-treated to increase hardness and tensile strength |
| Tensile Strength | Moderate | Up to 700 MPa (after heat treatment) |
| Formability | Excellent; easy to form and bend | Moderate; less formable than 409 |
| Weldability | Good | Moderate; welding requires caution to avoid cracking |
| Best Use Case | Sheet applications prioritising formability and weldability | Applications requiring higher strength or hardness after heat treatment |
| When to Choose | For automotive panels, exhausts, or moderate-corrosion applications | For knives, cutting tools, or components needing higher hardness |
Shipping & Packaging
Heavy-duty wooden boxes Packing
We strictly follow seaworthy export handling standards to protect stainless steel 409 sheets from transit damage, moisture ingress, and surface contamination during long-distance dispatch.
- Heavy-duty wooden boxes with moisture barrier lining
- HDPE stretch film wrapping on all bundles
- Edge and corner protection with plastic padding
- Silica gel desiccants to minimize moisture exposure
- ISPM-15 fumigated wooden packaging for export
Sheet Bundle Yard Staging
Sheet Bundle Edge Protection
Wrapped Export-Ready Bundles
We Export Worldwide
Sachiya Steel International supplies stainless steel products to major industrial markets across North America, Europe, the Middle East, Asia and Africa with export-ready documentation and logistics support.
USA
Canada
Germany
UK
Italy
France
Australia
South Korea
Indonesia
Vietnam
Singapore
Malaysia
Taiwan
UAE
Saudi Arabia
Qatar
Oman
South Africa
Nigeria
Egypt