EN 1.4512, ASTM TYPE 409 / UNS S40900 Stainless Steel

EN 1.4512, ASTM TYPE 409 / UNS S40900 Stainless Steel

EN 1.4512, ASTM TYPE 409 / UNS S40900 Stainless Steel General Characteristics 409/4512 is a weldable ferritic stainless steel with good oxidation resistance in dry air. This product is also available as low-carbon Moda 409L. Its corrosion resistance is limited in applications with increased...
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EN 1.4512, ASTM TYPE 409 / UNS S40900 Stainless Steel

General Characteristics

409/4512 is a weldable ferritic stainless steel with good oxidation resistance in dry air. This product is also available as low-carbon Moda 409L. Its corrosion resistance is limited in applications with increased corrosiveness. Because of its titanium alloying, 409/4512 can be welded in all dimensions without becoming susceptible to intergranular corrosion. It is possible to use 409/4512 in high-temperature applications, for instance in automotive exhaust systems, where it is often used to replace aluminium-coated carbon steel.


Typical Applications

Automotive applications

Industrial exhaust systems


Product forms, available sizes and finishes

Flat

Product typeFinishesThicknessWidth

Black hot band

1U

2,50-8,50

1000-1550

Cold rolled coil

2B, 2BB, 2C, 2D, 2E, 2G, 2J, 2R, 2S

0,05-5,00

3-1550

Cold rolled sheet

2B, 2BB, 2D, 2E, 2G, 2J, 2R

0,30-5,00

18-1550

Hot rolled coil, pickled

1C, 1D, 1E, 1G, 1U

2,00-8,00

30-1550

Precision strip

2R

0,05-1,50

3-649


Chemical Composition

The typical chemical composition for this grade is given in the table below, together with composition limits given for the product according to different standards. The required standard will be fully met as specified on the order.


The chemical composition is given as % by mass.


C

Mn

CrNiMoNOther
Typical

0.02


11.5

0.2



Ti

ASME II A SA-240

≤0.030

≤1.00

10.5-11.7

≤0.50


≤0.030


ASTM A240








EN 10088-2

≤0.030

≤1.0

10.5-12.5





EN 10088-4

≤0.030

≤1.0

10.5-12.5





IS 6911

≤0.030

≤1.00

10.5-11.7

≤0.50

≤0.30

≤0.030



Mechanical Properties

StandardRp0.2Rp1.0RmElongationRockwellHB

MPa

MPa

MPa

%



Product type: Cold rolled coil and sheet

Typical (thickness 1 mm)

255

275

425




ASME II A SA-240

≥ 170


≥ 380



≤ 179

ASTM A240

≥ 170


≥ 380


≤ 88HRB

≤ 179

EN 10088-2

≥ 220


380-560

≥ 25



EN 10088-4

≥ 220


380-560

≥ 25



IS 6911

≥ 170


≥ 380


≤ 88HRB

≤ 179

Product type: Hot rolled coil and sheet

Typical (thickness 4 mm)

350

365

445

35



EN 10088-2

≥ 220


380-560

≥ 25



EN 10088-4

≥ 220


380-560

≥ 25



IS 6911

≥ 170


≥ 380


≤ 88HRB

≤ 179

Product type: Hot rolled quarto plate

IS 6911

≥ 170


≥ 380


≤ 88HRB

≤ 179


Physical Properties

Density

Modulus of elasticity

Thermal exp. at 100 °CThermal conductivityThermal capacityElectrical resistanceMagnetizable

kg/dm3

GPa

10-6/°C

W/m°C

J/kg°C

µΩm


7,7

220

10,5

25

460

0,60

Yes


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