0.2 – 3.0 mm
Standard cold rolled thickness range. Thinner and heavier gauges can be confirmed per order.
Cold Rolled Stainless Steel
409 Stainless Steel
409 is a ferritic stainless steel stabilized with titanium and designed for high-temperature service. It offers good oxidation resistance and formability at a low cost, which makes it the standard material for automotive exhaust systems and heat exchangers.
Request a QuotationGrade Overview
Built for heat and exhaust systems
409 is a ferritic stainless steel stabilized with titanium and designed for high-temperature service. It offers good oxidation resistance and formability at a low cost, which makes it the standard material for automotive exhaust systems and heat exchangers.
409Grade · S40900
S40900UNS
1.4512EN Number
0.2 – 3.0 mmThickness
Typical Applications
Where this grade is used
The industries below are the most common destinations for this grade. If your application is not listed, send us your requirements and we will help match the material.
Automotive ExhaustHeat ExchangersSilencer TubesAgricultural EquipmentIndustrial HousingsFurnace Parts
Available Specifications
What we can supply
Cold rolled coil, sheet and strip are supplied with the dimensions and surfaces below. Custom slit widths and cut-to-length tolerances can be confirmed for each order.
10 – 1524 mm
Full-width mill coil plus custom slit strip widths down to narrow coils.
2B / BA / Brushed / Mirror
2B is standard; brushed finish is available on request.
Processing Services
Processed to your production line
All grades can be processed at our Ningbo center before shipping. Tell us the finished width, length, surface and packaging you need.
Slitting
Coil and strip slit to your required width, with tight edge quality and tolerance control.
Cut-to-Length
Sheet and plate cut to the exact length you need for direct entry into production.
Brushing
Brushed (HL) finish applied across the full surface for consistent texture.
Polishing
Mirror and satin polishing available to the finish standard you specify.
Leveling
Roller leveling improves flatness for applications that demand a stable surface.
Protective Film
Film applied to protect the surface during handling, processing and sea freight.
Get a Quote
Send us your specification
Tell us the grade, form, thickness, width, surface, quantity and destination. Our team will confirm stock, processing and delivery options.
Request a QuotationView All Grades