En
English Chinese
Products
We have professional sales team numbered 36 with more than 10 years experience.
Position:
Home > Products > Stainless Steel > Stainless Steel Coil/Sheet
Stainless steel 409
409 Stainless steel
Stainless steel
Stainless steel 409

Stainless steel 409

409 stainless steel is a Ferritic steel that offers good mechanical properties and high-temperature corrosion resistance. It is commonly considered as a chromium stainless steel, with applications in exhaust systems of automobiles and applications that demand weldability.
Product introduction
409 stainless steel is a Ferritic steel that offers good mechanical properties and high-temperature corrosion resistance. It is commonly considered as a chromium stainless steel, with applications in exhaust systems of automobiles and applications that demand weldability.
409 steels are also available in highly stabilized forms, such as grades S40930, S40920 and S40910. The stability of these grades is provided by the presence of niobium, titanium, or both, in the composition of steels.
Technical data
Chemical Composition
Grade C Mn Si P S Cr Ni Ti
409 min.
max.
-
0.08
-
1.00
-
1.00
-
0.045
-
0.045
10.5
11.75
-
0.5
6x C
0.75

Mechanical Properties
Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Hardness
Rockwell B (HR B) max Brinell (HB) max
409 450 240 25 75 131

Physical Properties
Grade Density (kg/m3) Elastic Modulus (GPa) Mean Coefficient of Thermal Expansion (μm/m/°C) Thermal Conductivity (W/m.K) Specific Heat 0-100°C (J/kg.K) Electrical Resistivity (nΩ.m)
0-100°C 0-315°C 0-538°C at 100°C at 500°C
409 7800 200 11.0 11.7 12.4 25.8 27.5 460 600

Grade Specification Comparison
Grade UNS No Old British Euronorm Swedish SS Japanese JIS
BS En No Name
409 S40900 409S19 - 1.4512 X6CrTi12 - SUH 409

Possible Alternative Grades
Grade Properties
3CR12 Easy to weld and good corrosion resistance. Heavy sections are more easily available when compared to 409.
304 High heat resistance and corrosion resistance. Grade 304 is expensive.
321 Better heat resistance when compared to 304 or 409.
Aluminized steel Cheaper than grade 409 stainless steel, but less resistant to exhaust gases.
 
Related Products
Inquiry
* Name
* E-mail
Phone
Country
Message
WhatsApp me