TAGS: EN 10273 | steel grade | P265GH | pressure vessel steel plate |
EN 10273 is a European standard that specifies the technical delivery conditions for hot-rolled steel sections. It covers a wide range of structural steel grades and shapes used in various applications, including construction, engineering, and manufacturing.
The standard provides guidelines for the production, testing, inspection, and delivery of hot-rolled steel sections. It addresses both non-alloy and alloy steels, defining their chemical composition, mechanical properties, and tolerances.
EN 10273 specifies requirements for steel grades, including designations, chemical composition limits, and mechanical properties such as yield strength, tensile strength, elongation, and impact energy. These properties ensure the suitability and reliability of the steel sections for their intended use.
The standard also defines dimensional tolerances for hot-rolled steel sections, including thickness, width, length, straightness, and twist. These tolerances ensure the consistency and accuracy of the produced sections, allowing for proper assembly and fit during construction or manufacturing processes.
EN 10273 covers a wide range of steel shapes, including beams, channels, angles, tees, flats, rounds, squares, and hollow sections. Each shape has specific requirements outlined in the standard to ensure dimensional and mechanical consistency.
Additional considerations addressed in EN 10273 include surface quality, internal soundness, and other relevant characteristics of the hot-rolled steel sections. These factors contribute to the overall quality and performance of the steel sections in their intended applications.
EN 10273 Grade P265GH is a specific grade of hot-rolled steel section specified in the EN 10273 standard. This grade falls under the category of non-alloy and alloy steels used for pressure purposes.
Grade P265GH is primarily used in the production of pressure vessels, boilers, and heat exchangers. It has excellent weldability and is suitable for elevated temperature service. The "P" in the grade designation indicates its suitability for pressure purposes.
The chemical composition of Grade P265GH typically includes elements such as carbon (C), manganese (Mn), silicon (Si), phosphorus (P), sulfur (S), and trace amounts of other elements. The exact composition may vary depending on the manufacturing process and supplier specifications.
Mechanical properties specified for Grade P265GH include minimum and maximum values for yield strength, tensile strength, elongation, and impact energy. These properties are important for assessing the strength and integrity of the steel under pressure and high-temperature conditions.
EN 10273 provides guidelines for the production, testing, inspection, and delivery of Grade P265GH hot-rolled steel sections. It ensures that the delivered materials meet specified technical requirements, including chemical composition, mechanical properties, dimensional tolerances, and surface quality.
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Property
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Temperature
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Value
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Density
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20.0 °C
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7.85 g/cm³
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Property
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Temperature
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Value
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Comment
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Elastic modulus
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-100.0 °C
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217 GPa
Show Material materials with Elastic modulus of 217 GPa
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20.0 °C
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212 GPa
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100.0 °C
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207 GPa
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200.0 °C
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199 GPa
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300.0 °C
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192 GPa
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400.0 °C
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184 GPa
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500.0 °C
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175 GPa
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600.0 °C
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164 GPa
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Elongation
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20.0 °C
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22 - 23 %
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Poisson's ratio
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23.0 °C
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0.29 [-]
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Typical for Low Carbon Steel
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Shear modulus
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23.0 °C
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82 GPa
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Typical for Low Carbon Steel
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Tensile strength
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20.0 °C
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400 - 530 MPa
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Yield strength
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20.0 °C
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200 - 265 MPa
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Yield strength Rp0.2
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50.0 °C
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192 - 256 MPa
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100.0 °C
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180 - 241 MPa
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150.0 °C
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169 - 223 MPa
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200.0 °C
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155 - 205 MPa
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250.0 °C
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142 - 188 MPa
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300.0 °C
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130 - 173 MPa
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350.0 °C
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121 - 160 MPa
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400.0 °C
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114 - 150 MPa
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Property
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Temperature
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Value
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Comment
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Coefficient of thermal expansion
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-100.0 °C
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1.08E-5 1/K
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20.0 °C
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1.19E-5 1/K
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100.0 °C
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1.25E-5 1/K
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200.0 °C
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1.3E-5 1/K
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300.0 °C
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1.36E-5 1/K
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400.0 °C
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1.41E-5 1/K
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500.0 °C
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1.45E-5 1/K
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600.0 °C
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1.49E-5 1/K
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Max service temperature
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500 °C
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Typical for Carbon Steel
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Melting point
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1480 - 1526 °C
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Typical for Low Carbon Steel
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Specific heat capacity
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-100.0 °C
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423 J/(kg·K)
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20.0 °C
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461 J/(kg·K)
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100.0 °C
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479 J/(kg·K)
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200.0 °C
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499 J/(kg·K)
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300.0 °C
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517 J/(kg·K)
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400.0 °C
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536 J/(kg·K)
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500.0 °C
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558 J/(kg·K)
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600.0 °C
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587 J/(kg·K)
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Thermal conductivity
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20.0 °C
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51 W/(m·K)
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100.0 °C
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50.8 W/(m·K)
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200.0 °C
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48.7 W/(m·K)
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300.0 °C
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45.8 W/(m·K)
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400.0 °C
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42.5 W/(m·K)
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500.0 °C
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39.2 W/(m·K)
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600.0 °C
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36 W/(m·K)
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Thermal diffusivity
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20.0 °C
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14.1 mm²/s
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100.0 °C
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13.1 mm²/s
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200.0 °C
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11.7 mm²/s
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300.0 °C
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10.4 mm²/s
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400.0 °C
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9 mm²/s
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500.0 °C
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7.6 mm²/s
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600.0 °C
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6.1 mm²/s
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Property
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Temperature
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Value
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Electrical resistivity
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20.0 °C
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2.04E-7 Ω·m
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100.0 °C
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2.52E-7 Ω·m
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200.0 °C
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3.24E-7 Ω·m
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300.0 °C
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4.1E-7 Ω·m
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400.0 °C
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5.12E-7 Ω·m
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500.0 °C
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6.31E-7 Ω·m
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600.0 °C
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7.7E-7 Ω·m
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Property
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Value
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Comment
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Curie temperature
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770 °C
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Typical for Low Carbon Steel
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Property
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Value
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Aluminium
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0.02 %
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Carbon
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0.2 %
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Chromium
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0.3 %
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Copper
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0.3 %
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Manganese
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0.5 - 1.4 %
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Molybdenum
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0.08 %
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Nickel
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0.3 %
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Niobium
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0.01 - 0.02 %
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Nitrogen
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0.01 %
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Phosphorus
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0.03 %
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Silicon
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0.4 %
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Sulfur
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0.01 - 0.025 %
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Titanium
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0.03 %
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Vanadium
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0.02 %
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