AISI 409

Grade 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. Grade 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.

Element	Content(%)
Carbon, C	0.8
Manganese, Mn	1.00
Silicon, Si	1.00
Phosphorous, P	0.045
Sulfur, S	0.045
Chromium, Cr	10.5 - 11.75
Nickel, Ni	0.5
Titanium, Ti	6xC - 0.75

Element

Content(%)

Carbon, C

0.8

Manganese, Mn

1.00

Silicon, Si

1.00

Phosphorous, P

0.045

Sulfur, S

0.045

Chromium, Cr

10.5 - 11.75

Nickel, Ni

0.5

Titanium, Ti

6xC - 0.75

Properties	409
Tensile Strength (MPa) min	450
Yield Strength 0.2% Proof (MPa) min	240
Elongation (% in 50mm) min	25
Hardness (HRB)	75
Hardness (HB)	131

Properties

409

Tensile Strength (MPa) min

450

Yield Strength 0.2% Proof (MPa) min

240

Elongation (% in 50mm) min

Hardness (HRB)

Hardness (HB)

131

Production Route	Hot Rolled, Cold Rolled
Material Standard	AISI, ASTM, ASME, DIN, BS, EN, ISO, JIS, GOST, SAE, IS & Custom Chemistry
Size	Width from 100mm to 3000mm ; Length from 500mm to 12000mm
Thickness	0.1mm to 400mm
Delivery Condition	As Rolled, Annealed, Quenched and Tempered, Normalized
Surface Finish	Plain, Brushed, Cladded

Production Route

Hot Rolled, Cold Rolled

Material Standard

AISI, ASTM, ASME, DIN, BS, EN, ISO, JIS, GOST, SAE, IS & Custom Chemistry

Size

Width from 100mm to 3000mm ; Length from 500mm to 12000mm

Thickness

0.1mm to 400mm

Delivery Condition

As Rolled, Annealed, Quenched and Tempered, Normalized

Surface Finish

Plain, Brushed, Cladded

AISI 409

Chemical Composition

Mechanical Properties

Sheets / Plates

AISI 409 Applications