EN 10025-3 Grade S355N normalized or normalized formed (+N)

TAGS: EN 10025-3 | steel grade | S355N | pressure vessel steel plate |

EN 10025-3 Grade S355N normalized or normalized formed (+N)

EN 10025-3 Grade S355N 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.

S355N steel is primarily used in construction and engineering projects where high strength and good toughness are required. It offers excellent weldability and formability, making it suitable for various applications such as buildings, bridges, and machinery.

According to the EN 10025-3 standard, S355N 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, S355N 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 S355N 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 S355N 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 S355N can be supplied either in a normalized condition or in a normalized formed (+N) condition, depending on the specific requirements of the application.

The unalloyed, normalised/normalising rolled quality steel S355N is a weldable fine-grained steel with a min. yield point of 355 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: 2,5 x s

transverse: 2,0 x s

Sheet and strip of nominal thicknesses


Property

Temperature

Value

Condition

Related Standards

Shape

Density

20 °C

7.83 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

17.0 %

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Predicted Value, A80 Transverse

17.2 %

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Predicted Value, A80

17.8 %

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Predicted Value, A200

19.6 %

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Predicted Value, Transverse

21.1 %

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Predicted Value, A5

21.3 %

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Predicted Value, A50

20 °C

20 %

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Flat

20 °C

21 %

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire

20 °C

22 %

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Strip, Bar, Flat, Rod, Wire

Hardness, Brinell

242 [-]

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Predicted Value, Transverse

Poisson's ratio

0.29 [-]

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Typical for Low Carbon Steel

Reduction of area

44.2 %

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Predicted Value, Transverse

51.9 %

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Predicted Value

Shear modulus

82 GPa

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Typical for Low Carbon Steel

Shear strength

511.9 MPa

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Predicted Value

Tensile strength

20 °C

440 - 590 MPa

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Flat

20 °C

450 - 630 MPa

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Strip, Bar, Flat, Rod, Wire

20 °C

450 - 600 MPa

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Strip, Bar, Flat, Rod, Wire

20 °C

470 - 630 MPa

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Strip, Bar, Flat, Rod, Wire

20 °C

470 - 600 MPa

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Strip, Bar, Flat, Rod, Wire

Yield strength

254.1 MPa

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Predicted Value, RP1

301.2 MPa

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Predicted Value, RP1 Transverse

359.4 MPa

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Predicted Value, RP02

376.5 MPa

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Predicted Value, Transverse

450.1 MPa

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Predicted Value, RP002

453.7 MPa

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Predicted Value, RP02 Transverse

460.8 MPa

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Predicted Value, RP05

20 °C

275 MPa

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire

20 °C

285 MPa

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Flat, Strip, Rod, Wire

20 °C

295 MPa

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Strip, Bar, Flat, Rod, Wire

20 °C

315 MPa

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Strip, Bar, Flat, Rod, Wire

20 °C

325 MPa

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Strip, Bar, Flat, Rod, Wire

20 °C

335 MPa

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Strip, Bar, Flat, Rod, Wire

20 °C

345 MPa

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Strip, Bar, Flat, Rod, Wire

20 °C

355 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

1.08e-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

1.19e-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

1.25e-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

1.3e-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

1.36e-05 1/K

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

400 °C

1.41e-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

1.45e-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

1.49e-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

373.3 °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

37.6 W/(m·K)

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

20 °C

42.2 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

43.2 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

42.9 W/(m·K)

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar

300 °C

41.2 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

39.1 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

34.1 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

12.9 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

11.7 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

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

200 °C

10.3 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

9.4 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

7.1 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

5.7 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

1.82e-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

2.47e-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

2.96e-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

3.68e-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

4.55e-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

5.56e-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

8.13e-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

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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

0.35 %

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Strip, Bar, Flat

0.55 %

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire

Manganese

0.9 - 1.65 %

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

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Molybdenum

0.1 %

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

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Nickel

0.5 %

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

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Niobium

0.05 %

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

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Nitrogen

0.015 %

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

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Phosphorus

0.03 %

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire

0.035 %

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normalized or normalized formed (+N)

EN 10113-2, EN 10025-3

Sheet, Strip, Bar, Flat

Silicon

0.5 %

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

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Sulfur

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

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

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Vanadium

0.12 %

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normalized or normalized formed (+N)

EN 10025-3, EN 10113-2

Strip, Sheet, Flat, Rod, Wire, Bar


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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