EN 10207 Grade P275SL normalized or normalized formed (+N)

TAGS: EN 10207 | steel grade | P275SL | pressure vessel steel plate |

EN 10207 Grade P275SL normalized or normalized formed (+N)

EN 10207 Grade P275SL is a low-alloyed steel plate with elevated temperature properties. It belongs to the EN 10207 standard, which specifies the technical delivery conditions for steels for simple pressure vessels.

P275SL steel is primarily used in the fabrication of simple pressure vessels, such as storage tanks or boilers. It offers good weldability and high temperature resistance, making it suitable for applications where elevated temperatures and moderate pressures are involved.

According to the EN 10207 standard, Grade P275SL 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, P275SL must meet criteria for yield strength, tensile strength, elongation, and impact energy absorption. These properties determine the material's ability to withstand pressure and maintain its structural integrity under elevated temperatures.

EN 10207 Grade P275SL is a low-alloyed steel plate designed for use in simple pressure vessels operating at elevated temperatures. It provides good weldability, high temperature resistance, and reliable mechanical properties, making it suitable for various industrial applications.

EN 10207 Grade P275SL 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 10207 Grade P275SL can be supplied either in a normalized condition or in a normalized formed (+N) condition, depending on the specific requirements of the application.

The non-alloy special steel P275SL is used for simple pressure vessels in the form of normalised or normalising rolled plates, strips and bars.

According the directive 87/404/EEC simple pressure vessels are defined as:

- every welded, cylindrical vessel with convex and/or flat bottoms made of unalloyed steel with internal pressures between min. 0.5 bar and max. 30 bar, used for air and nitrogen, not exposed to flames

- the product of pressure and capacity amounts to max. 10000 bar*l


Property

Value

Comment

Density

7.8 - 7.9 g/cm³

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Typical for Low Carbon Steel


Property

Temperature

Value

Condition

Related Standards

Shape

Comment

Elastic modulus

200 - 215 GPa

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Typical for Low Carbon Steel

Elongation

18.2 %

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Predicted Value, A200

19.7 %

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Predicted Value, A5

20.4 %

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Predicted Value, A80 Transverse

23.7 %

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Predicted Value, Transverse

24.8 %

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Predicted Value, A50

20 °C

19 %

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normalized or normalized formed (+N)

EN 10207

Strip, Sheet, Bar

A80

20 °C

20 %

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normalized or normalized formed (+N)

EN 10207

Strip, Sheet, Bar

A80

20 °C

24 %

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normalized or normalized formed (+N)

EN 10207

Strip, Sheet, Bar

Hardness, Brinell

239 [-]

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Predicted Value, Transverse

Poisson's ratio

0.29 [-]

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Typical for Low Carbon Steel

Reduction of area

42.4 %

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Predicted Value, Transverse

43.2 %

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Predicted Value

Shear modulus

82 GPa

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Typical for Low Carbon Steel

Shear strength

519.3 MPa

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Predicted Value

Tensile strength

20 °C

390 - 510 MPa

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normalized or normalized formed (+N)

EN 10207

Strip, Sheet, Bar

Yield strength

259.3 MPa

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Predicted Value, RP1

314.8 MPa

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Predicted Value, Transverse

316.9 MPa

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Predicted Value, RP05

337.4 MPa

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Predicted Value, RP1 Transverse

451.8 MPa

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Predicted Value, RP002

470.5 MPa

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Predicted Value, RP02 Transverse

20 °C

255 MPa

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normalized or normalized formed (+N)

EN 10207

Strip, Sheet, Bar

20 °C

265 MPa

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normalized or normalized formed (+N)

EN 10207

Strip, Sheet, Bar

20 °C

275 MPa

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normalized or normalized formed (+N)

EN 10207

Strip, Sheet, Bar

100 °C

212 MPa

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normalized or normalized formed (+N)

EN 10207

Strip, Sheet, Bar

RP02

100 °C

221 MPa

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normalized or normalized formed (+N)

EN 10207

Strip, Sheet, Bar

RP02

150 °C

194 MPa

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normalized or normalized formed (+N)

EN 10207

Strip, Sheet, Bar

RP02

150 °C

203 MPa

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normalized or normalized formed (+N)

EN 10207

Strip, Sheet, Bar

RP02

200 °C

176 MPa

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normalized or normalized formed (+N)

EN 10207

Strip, Sheet, Bar

RP02

250 °C

159 MPa

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normalized or normalized formed (+N)

EN 10207

Strip, Sheet, Bar

RP02

300 °C

132 MPa

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normalized or normalized formed (+N)

EN 10207

Strip, Sheet, Bar

RP02


Property

Value

Comment

Coefficient of thermal expansion

1.32e-05 - 1.38e-05 1/K

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Typical for Low Carbon Steel

Max service temperature

303.3 °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

465 J/(kg·K)

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Typical for Low Carbon Steel

Thermal conductivity

25 - 93 W/(m·K)

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Typical for Low Carbon Steel


Property

Value

Comment

Electrical conductivity

7 S/m

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Predicted Value

Electrical resistivity

1.43e-07 - 1.74e-07 Ω·m

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Typical for Carbon Steel


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 10207

Strip, Sheet, Bar

Carbon

0.16 %

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normalized or normalized formed (+N)

EN 10207

Strip, Sheet, Bar

Manganese

0.5 - 1.5 %

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normalized or normalized formed (+N)

EN 10207

Strip, Sheet, Bar

Phosphorus

0.025 %

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normalized or normalized formed (+N)

EN 10207

Strip, Sheet, Bar

Silicon

0.4 %

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normalized or normalized formed (+N)

EN 10207

Strip, Sheet, Bar

Sulfur

0.02 %

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normalized or normalized formed (+N)

EN 10207

Strip, Sheet, 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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