Stainless Steel 309 1.4828

Stainless Steel 309 1.4828

Stainless Steel 309 1.4828 This data sheet applies to stainless steel 309 / 1.4828 hot and cold rolled sheet and strip, semi-finished products, bars, rods and sections as well as for welded saccular steel tubes for mechanical and general engineering purposes. This data sheet applies to stainless...
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Stainless Steel 309 1.4828

This data sheet applies to stainless steel 309 / 1.4828 hot and cold rolled sheet and strip, semi-finished products, bars, rods and sections as well as for welded saccular steel tubes for mechanical and general engineering purposes.


This data sheet applies to stainless steel 309 / 1.4828 hot and cold rolled sheet and strip, semi-finished products, bars, rods and sections as well as for welded saccular steel tubes for mechanical and general engineering purposes.


Application

For construction parts which should be resistant to scaling up to about 1000 °C and extensively inured to the effect of sulphurous gases. Inclination to carbonisation in reduced gases, especially above 900 °C, is very low.


Chemical Compositions

Element% Present (in product form)

C, H, P, L

TW2)

Carbon (C)

0.20

0.20

Silicon (Si)

1.50 - 2.00

1.50 - 2.50

Manganese (Mn)

2.00

2.00

Phosphorous (P)

0.045

0.045

Sulfur (S)

0.015

0.030

Chromium (Cr)

19.00 - 21.00

19.00 - 21.00

Nickel (Ni)

11.00 - 13.00

11.00 - 13.00

Nitrogen (N)

0.11

-

Iron (Fe)

Balance

Balance


Mechanical properties (at room temperature in annealed condition


Product Form

C, H, P

L

TW*

Thickness a or diamter d (mm)

a ≤ 12

d ≤ 25

a=25

Hardness HB max. 1) 2) 3)

216

-


Proof Strength3)

Rp0.2 N/mm2

190

230

Rp1.0 N/mm2

230

270


Tensile Strength

Rm N/mm2

500 - 720

min. 550

Elongation min. in %

Long Products

401)

-

Flat Products

0.5 ≤ a/d ˂ 3

404)5)

304)5)6)

3 ≤ a/d

404)5)

304)5)6)



Creep Properties (estimated average values about the long-term behaviour at elevated temperature

1% Elongation1) forRupture2) for

Temperature °C

1,000 h N/mm2

10,000 h N/mm2

1,000 h N/mm2

10,000 h N/mm2

100,000 h N/mm2

600

120

80

190

120

65

700

50

25

75

36

16

800

20

10

35

18

7.5

900

8

4

15

8.5

3


Reference data on some physical properties

Density at 20°C kg/m3
7.9
Thermal Conductivity W/m K at

20°C

15


500°C

21

Specific Thermal Capacity at 20°C J/kg K


500

Electrical Resistivity at 20°C Ω mm2 /m


0.85

Coefficient of linear thermal expansion 10-6 K-1 between 20°C and

200°C16.5

400°C

17.5

600°C

18.0

800°C

18.5

1000°C

19.5


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