EN 10217-3 Grade StE 420 normalized or normalized formed (+N)

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Description

The fine grain steel StE 420 is used for special requirements according to DIN 17178 : 1986-5 for welded steel tubes and according to DIN 17179 : 1986-5 for seamless steel tubes. These steel tubes are used above all in pressure vessel construction, apparatus construction, pipe construction, as well as in general machine and equipment construction. The corresponding rules in the procedure manuals have to be complied with, for example Technische Regeln Druckbehälter (TRB) [Technical Rules for Pressure Vessels], Technische Regeln Dampfkessel (TRD) [Technical Rules for Steam Boilers], specifications sheets of the AG-Druckbehälter [Team for Pressure Vessels] (AD-specifications sheets), Technische Regeln brennbare Flüssigkeiten (TRbB) [Technical Rules for Flammable Liquids], Technische Regeln Druckgase (TRG) [Technical Rules for Pressure Gases], Technische Regeln Gashochdruckleitungen (TRGL) [Technical Rules for high-pressure Pipes for Gases]. Special requirements regarding further processing (for example zinc coating, chromium coating or enamelling) have to be negotiated at the time of ordering. For welded tubes, one can assume a 100% use of the allowed calculated stress of the welding seam. StE 420 can be used in temperature lows up to -20 degrees C.

Related Standards

Equivalent Materials

This material data has been provided by WIAM.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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Properties

General

PropertyTemperatureValue

Density

20.0 °C

7.84 g/cm³

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Mechanical

PropertyTemperatureValueComment

Elastic modulus

-100.0 °C

217 GPa

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20.0 °C

212 GPa

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100.0 °C

207 GPa

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200.0 °C

199 GPa

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300.0 °C

192 GPa

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400.0 °C

184 GPa

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500.0 °C

175 GPa

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600.0 °C

164 GPa

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Elongation

20.0 °C

21 %

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Elongation, transverse

20.0 °C

19 %

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Poisson's ratio

23.0 °C

0.29 [-]

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Typical for Low Carbon Steel

Shear modulus

23.0 °C

82 GPa

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Typical for Low Carbon Steel

Tensile strength

20.0 °C

530 - 680 MPa

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Tensile strength, transverse

20.0 °C

530 - 680 MPa

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Yield strength

20.0 °C

400 - 420 MPa

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Yield strength, transverse

20.0 °C

400 - 420 MPa

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Thermal

PropertyTemperatureValueComment

Coefficient of thermal expansion

-100.0 °C

1.05E-5 1/K

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20.0 °C

1.15E-5 1/K

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100.0 °C

1.21E-5 1/K

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200.0 °C

1.27E-5 1/K

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300.0 °C

1.32E-5 1/K

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400.0 °C

1.36E-5 1/K

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500.0 °C

1.4E-5 1/K

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600.0 °C

1.44E-5 1/K

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Max service temperature

500 °C

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Typical for Carbon Steel

Max service temperature, long

-20 - 0 °C

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Melting point

1480 - 1526 °C

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Typical for Low Carbon Steel

Specific heat capacity

-100.0 °C

423 J/(kg·K)

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20.0 °C

461 J/(kg·K)

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100.0 °C

479 J/(kg·K)

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200.0 °C

499 J/(kg·K)

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300.0 °C

517 J/(kg·K)

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400.0 °C

536 J/(kg·K)

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500.0 °C

558 J/(kg·K)

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600.0 °C

587 J/(kg·K)

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Thermal conductivity

-100.0 °C

35.4 W/(m·K)

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20.0 °C

40.4 W/(m·K)

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100.0 °C

42 W/(m·K)

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200.0 °C

42 W/(m·K)

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300.0 °C

40.8 W/(m·K)

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400.0 °C

38.9 W/(m·K)

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500.0 °C

36.6 W/(m·K)

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600.0 °C

34.3 W/(m·K)

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Thermal diffusivity

-100.0 °C

12.1 mm²/s

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20.0 °C

11.2 mm²/s

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100.0 °C

10.8 mm²/s

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200.0 °C

10.1 mm²/s

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300.0 °C

9.3 mm²/s

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400.0 °C

8.3 mm²/s

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500.0 °C

7 mm²/s

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600.0 °C

5.8 mm²/s

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Electrical

PropertyTemperatureValue

Electrical resistivity

-100.0 °C

1.93E-7 Ω·m

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20.0 °C

2.58E-7 Ω·m

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100.0 °C

3.05E-7 Ω·m

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200.0 °C

3.76E-7 Ω·m

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300.0 °C

4.6E-7 Ω·m

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400.0 °C

5.59E-7 Ω·m

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500.0 °C

6.75E-7 Ω·m

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600.0 °C

8.08E-7 Ω·m

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Magnetic

PropertyValueComment

Curie temperature

770 °C

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Typical for Low Carbon Steel

Chemical properties

PropertyValue

Aluminium

0.02 %

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Carbon

0.2 %

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Chromium

0.3 %

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Copper

0.2 %

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Manganese

1 - 1.7 %

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Molybdenum

0.1 %

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Nickel

1 %

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Nitrogen

0.02 %

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Phosphorus

0.04 %

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Silicon

0.1 - 0.6 %

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Sulfur

0.03 %

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Titanium

0.2 %

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Vanadium

0.22 %

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