EN 10025-3 Grade S420NL normalized or normalized formed (+N)

TAGS: EN 10025-3 | steel grade | S420NL | pressure vessel steel plate |

EN 10025-3 Grade S420NL normalized or normalized formed (+N)

EN 10025-3 Grade S420NL is a normalized/normalized rolled weldable fine grain structural steel. It belongs to the EN 10025 standard, which specifies technical delivery conditions for structural steels with improved atmospheric corrosion resistance.

S420NL steel is primarily used in construction and engineering projects that require high strength and good toughness. It offers excellent weldability, formability, and impact resistance, making it suitable for various applications such as buildings, bridges, and machinery.

According to the EN 10025-3 standard, S420NL has specific requirements for chemical composition and mechanical properties. The chemical composition includes elements such as carbon (C), silicon (Si), manganese (Mn), phosphorus (P), sulfur (S), and other alloying elements. These elements are controlled within specified limits to ensure the desired properties of the steel.

In terms of mechanical properties, S420NL must meet criteria for yield strength, tensile strength, elongation, and impact energy absorption. These properties determine the material's ability to withstand loads and provide structural integrity.

EN 10025-3 Grade S420NL is a normalized/normalized rolled structural steel that offers good weldability, high strength, and improved atmospheric corrosion resistance. It is commonly used in construction projects requiring reliable and durable structural components.

EN 10025-3 Grade S420NL can be supplied in two different conditions: normalized or normalized formed (+N).

Normalized: This condition refers to the steel being subjected to a controlled heating and cooling process to achieve uniform properties throughout the material. It involves heating the steel above its critical temperature, holding it at that temperature for a specific time, and then allowing it to cool in still air. Normalizing improves the mechanical properties of the steel, such as strength and toughness.

Normalized formed (+N): This condition indicates that the steel has undergone a forming process after normalization. The forming process could involve shaping, bending, or any other method of altering the steel's shape. After the forming process, the steel is again subjected to normalization to restore its desired properties.

EN 10025-3 Grade S420NL can be supplied either in a normalized condition or in a normalized formed (+N) condition, depending on the specific requirements of the application.

The alloyed, normalised/normalising rolled high grade steel S420NL is a weldable fine-grained steel with a min. yield point of 420 N/mm². The steel is applicated in normalized condition for several types of welded constructions such as fixed and movable storage container, high-pressure pipes, bridge and load-bearing constructions etc. 

Cold forming: Suitability for cold bending, folding, cold flanging or cold welting has to be agreed. For sheet, strip and wide flat steel in normalized condition, for nominal thickness (s) up to 16 mm can be warranted the following bending radius values:

longitudinal: 5 x s

transverse: 4 x s

Sheet and strip of nominal thicknesses


Property

Temperature

Value

Condition

Related Standards

Shape

Density

20 °C

7.84 g/cm³

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar


Property

Temperature

Value

Condition

Related Standards

Shape

Comment

Elastic modulus

-100 °C

217 GPa

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

20 °C

212 GPa

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

100 °C

207 GPa

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

200 °C

199 GPa

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

300 °C

192 GPa

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

400 °C

184 GPa

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

500 °C

175 GPa

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

600 °C

164 GPa

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

Elongation

16.4 %

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Predicted Value, A80 Transverse

16.6 %

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Predicted Value, A80

17.0 %

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Predicted Value, A200

18.8 %

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Predicted Value, Transverse

20.8 %

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Predicted Value, A50

21.1 %

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Predicted Value, A5

20 °C

17 %

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Flat

20 °C

18 %

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire

20 °C

19 %

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Strip, Bar, Flat, Rod, Wire

Hardness, Brinell

247 [-]

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Predicted Value, Transverse

Poisson's ratio

0.29 [-]

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Typical for Low Carbon Steel

Reduction of area

43.7 %

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Predicted Value, Transverse

50.9 %

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Predicted Value

Shear modulus

82 GPa

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Typical for Low Carbon Steel

Shear strength

511.3 MPa

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Predicted Value

Tensile strength

20 °C

480 - 640 MPa

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Flat

20 °C

500 - 680 MPa

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Strip, Bar, Flat, Rod, Wire

20 °C

500 - 650 MPa

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Strip, Bar, Flat, Rod, Wire

20 °C

520 - 680 MPa

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Strip, Bar, Flat, Rod, Wire

20 °C

520 - 650 MPa

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Strip, Bar, Flat, Rod, Wire

Yield strength

257.3 MPa

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Predicted Value, RP1

301.6 MPa

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Predicted Value, RP1 Transverse

397.8 MPa

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Predicted Value, Transverse

413.2 MPa

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Predicted Value, RP02

456.5 MPa

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Predicted Value, RP02 Transverse

493.1 MPa

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Predicted Value, RP002

505.9 MPa

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Predicted Value, RP05

20 °C

320 MPa

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire

20 °C

330 MPa

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire

20 °C

335 MPa

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Flat

20 °C

340 MPa

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Strip, Bar, Flat, Rod, Wire

20 °C

360 MPa

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Strip, Bar, Flat, Rod, Wire

20 °C

370 MPa

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Strip, Bar, Flat, Rod, Wire

20 °C

390 MPa

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Strip, Bar, Flat, Rod, Wire

20 °C

400 MPa

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Strip, Bar, Flat, Rod, Wire

20 °C

420 MPa

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Strip, Bar, Flat, Rod, Wire


Property

Temperature

Value

Condition

Related Standards

Shape

Comment

Coefficient of thermal expansion

-100 °C

1.05e-05 1/K

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

20 °C

1.15e-05 1/K

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

100 °C

1.21e-05 1/K

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

200 °C

1.27e-05 1/K

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

300 °C

1.32e-05 1/K

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

400 °C

1.36e-05 1/K

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

500 °C

1.4e-05 1/K

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

600 °C

1.44e-05 1/K

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

Max service temperature

218.2 °C

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Predicted Value, Long

500 °C

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Typical for Carbon Steel

Melting point

1480 - 1526 °C

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Typical for Low Carbon Steel

Specific heat capacity

-100 °C

423 J/(kg·K)

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

20 °C

461 J/(kg·K)

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

100 °C

479 J/(kg·K)

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

200 °C

499 J/(kg·K)

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

300 °C

517 J/(kg·K)

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

400 °C

536 J/(kg·K)

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

500 °C

558 J/(kg·K)

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

600 °C

587 J/(kg·K)

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

Thermal conductivity

-100 °C

35.4 W/(m·K)

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

20 °C

40.4 W/(m·K)

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

100 °C

42 W/(m·K)

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

200 °C

42 W/(m·K)

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

300 °C

40.8 W/(m·K)

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

400 °C

38.9 W/(m·K)

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

500 °C

36.6 W/(m·K)

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

600 °C

34.3 W/(m·K)

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

Thermal diffusivity

-100 °C

12.1 mm²/s

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

20 °C

11.2 mm²/s

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

100 °C

10.8 mm²/s

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

200 °C

10.1 mm²/s

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

300 °C

9.3 mm²/s

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

400 °C

8.3 mm²/s

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

500 °C

7 mm²/s

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

600 °C

5.8 mm²/s

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar


Property

Temperature

Value

Condition

Related Standards

Shape

Comment

Electrical conductivity

5 S/m

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Predicted Value

Electrical resistivity

-100 °C

1.93e-07 Ω·m

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

20 °C

2.58e-07 Ω·m

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

100 °C

3.05e-07 Ω·m

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

200 °C

3.76e-07 Ω·m

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

300 °C

4.6e-07 Ω·m

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

400 °C

5.59e-07 Ω·m

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

500 °C

6.75e-07 Ω·m

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

600 °C

8.08e-07 Ω·m

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar


Property

Value

Comment

Curie temperature

770 °C

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Typical for Low Carbon Steel

Property

Value

Condition

Related Standards

Shape

Aluminium

0.02 %

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

Carbon

0.2 %

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

Chromium

0.3 %

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

Copper

0.55 %

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire

0.7 %

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Strip, Bar, Flat

Manganese

1 - 1.7 %

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

Molybdenum

0.1 %

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

Nickel

0.8 %

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

Niobium

0.05 %

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Strip, Bar, Flat

0.2 %

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire

Nitrogen

0.025 %

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

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Phosphorus

0.025 %

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire

0.03 %

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Strip, Bar, Flat

Silicon

0.6 %

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

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Sulfur

0.02 %

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire

0.025 %

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Strip, Bar, Flat

Titanium

0.03 %

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Strip, Bar, Flat

0.05 %

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire

Vanadium

0.05 %

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire

0.2 %

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Strip, Bar, Flat

Property

Supplier Disclaimer

The given information is a rough description and some properties can depend on various factors such as product thickness. Please contact the supplier or refer to the related norm or standard for further information.

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