409 STAINLESS STEEL ALLOY

409 STAINLESS STEEL ALLOY

409 STAINLESS STEEL ALLOY UNS: S40910/S40920/S40930 EN-DIN: 1.4512 409 Stainless is used when corrosion protection is needed beyond a carbon steel capacity. Applications include: Automotive, exhaust systems, and heat exchangers. Nominal Composition Physical Properties At 70°F (At 20°C) Density...
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409 STAINLESS STEEL ALLOY

UNS: S40910/S40920/S40930
EN-DIN: 1.4512


409 Stainless is used when corrosion protection is needed beyond a carbon steel capacity. Applications include: Automotive, exhaust systems, and heat exchangers.


Nominal Composition

C:

0.030 max

Mn:

1.0 max

P:

0.040 max

S:

0.020 max

Si:

1.00 max

Cr:

10.50 – 11.70

Ni:

.50 max

N:

0.030 max

Fe:

BAL


Physical Properties At 70°F (At 20°C)

Density
0.280 lb./in3 / (7.75 g/cm3)


Modulus of Elasticity (E)
30.2 x 103 ksi / (208.22 x 103MPa)


Electrical Resistivity
24 μ ohm.in / (60 μ ohm.cm)


Typical Mechanical Properties – Typical Room Temperature Mechanical Properties

Condition
Annealed (Min)


Tensile Strength Min (UTS)
55 ksi (380 MPa)

0.2% YS Min
25 ksi (170 MPa)


Elongation% in 2” Min (50.8 mm)
20%


Hardness Rockwell
88 HRBW (Max)


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