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Hot Rolled Structural Steel Plate Product Introduction
EN S235J2 EN 10025-2 steel grade is a high strength, low alloy steel with improved weldability. It is typically supplied in the normalized condition and is available in a wide range of sizes and thicknesses. The most common mechanical properties of EN S235J2 EN 10025-2 steel grade are tensile strength, yield strength, elongation, hardness and impact energy.
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EN S235J2 EN 10025-2 Chemical Element
EN S235J2 EN 10025-2 in addition to carbon, steel also contains a small amount of manganese (Mn), silicon (Si), sulfur (S), phosphorus (P), oxygen (O), nitrogen (N) and hydrogen (H). These elements are not intentionally added to improve the quality of steel, but are brought in by ore and smelting process, so they are called impurity elements. These impurities have a certain impact on the properties of steel. In order to ensure the quality of steel, the chemical composition of all kinds of steel is strictly stipulated in technical standards.
The main elements proportion is as below:
| Element | Min | Max | Similar |
|---|---|---|---|
| Ti | - | 0.0140 | - |
| Si | - | 1.5000 | - |
| S | - | 0.0350 | - |
| P | - | 0.0350 | - |
| Mn | - | 1.5000 | - |
| Cu | - | 0.6000 | - |
| C | - | 0.1900 | - |
Introduction of mechanical properties EN S235J2 EN 10025-2:
Yield point(σs)When the stress of EN S235J2 EN 10025-2 or specimen exceeds the elastic limit in tension, even if the stress does not increase, the EN S235J2 EN 10025-2 or specimen will continue to undergo obvious plastic deformation. This phenomenon is called yielding, and the minimum stress value when yielding occurs is called yield point.
Tensile Strength(σb) : The maximum stress of EN S235J2 EN 10025-2 during tension from the beginning to the time of fracture. It indicates the ability of EN S235J2 EN 10025-2 to resist fracture.
Elongation(δs) : The percentage of the plastic elongation length to the original sample length is called elongation.
Yield-strength ratio(σs/σb) : The ratio of yield point (yield strength) to tensile strength of EN S235J2 EN 10025-2 is called its yield strength ratio. The greater the yield-strength ratio, the higher the reliability of structural parts.
Hardness: Hardness is the ability of EN S235J2 EN 10025-2 to resist hard objects pressing into its surface. The higher the hardness, the better the wear resistance.
| Yield Rp0.2 (MPa) |
Tensile Rm (MPa) |
Impact KV/Ku (J) |
Elongation A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 261 (≥) | 842 (≥) | 42 | 42 | 34 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 424 |
EN S235J2 EN 10025-2 Physical Properties
Physical performance parameters of EN S235J2 EN 10025-2 are mainly indicated by thermal conductivity, specific thermal capacity, modulus of elasticity, coefficient of thermal expansion, electrical resistance value, density, poisson's ratio, etc. parameters of EN S235J2 EN 10025-2.
| Temperature (°C) |
Modulus of elasticity (GPa) |
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and | Thermal conductivity (W/m·°C) |
Specific thermal capacity (J/kg·°C) |
Specific electrical resistivity (Ω mm²/m) |
Density (kg/dm³) |
Poisson's coefficient, ν |
|---|---|---|---|---|---|---|---|
| 24 | - | - | 0.23 | - | |||
| 131 | 758 | - | 44.3 | 334 | - | ||
| 975 | - | 14 | 14.2 | 444 | 124 |
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