EN P 420 ML 1 EN 10028-5
Boiler and Pressure Vessel Steel Product Introduction
EN P 420 ML 1 EN 10028-5 steel is an ideal choice for the construction of pressure vessels, boilers, and other components exposed to extreme temperatures and loads. The steel has excellent formability, weldability, and corrosion resistance, making it suitable for a wide range of applications. Thanks to its relatively low cost, it is one of the few steels that meets the requirements of the European Union's Pressure Equipment Directive.
Our company is world class raw iron and steel materials supplier. EN P 420 ML 1 EN 10028-5 is one of our main steel products. Other than fresh production, we also have large EN 10028-5 stocks to meet urgent demands of clients. The EN P 420 ML 1 EN 10028-5 is available in a variety of standard sizes and can also be customized according to customer needs. In addition, we provide processing services, such as: cutting, bending, drilling, welding and other processing services.
Application: Pressure flat steel products - Part 5: Weldable fine grain steel, thermomechanical rolling.
Heat treated: 1488°C - 1667°C.
Boiler and Pressure Vessel Steel Product Details
EN P 420 ML 1 EN 10028-5 Chemical element
EN P 420 ML 1 EN 10028-5 is an alloy of iron and carbon and other elements. Because of its high tensile strength and low cost, it is a major component used in buildings, infrastructure, tools, ships, automobiles, machines, appliances. The EN P 420 ML 1 EN 10028-5 chemical composition determined by ladle analysis shall comply with the specified values of the following table.
| Element | Min | Max | Similar |
|---|---|---|---|
| V | - | 0.1000 | - |
| Ti | - | 0.0500 | - |
| Si | - | 0.5000 | - |
| S | - | 0.0150 | - |
| P | - | 0.0200 | - |
| Ni | - | 0.5000 | - |
| Nb+Ti+V | - | 0.1500 | - |
| Nb | - | 0.0500 | - |
| N | - | 0.0200 | - |
| Mo | - | 0.2000 | - |
| Mn | - | 1.7000 | - |
| Cr+Cu+Mo | - | 0.6000 | - |
| CEV | - | 0.4300 | - |
| C | - | 0.1600 | - |
| Al | 0.0200 | - | - |
EN P 420 ML 1 EN 10028-5 Mechanical properties
Yield strength is the yield limit of EN P 420 ML 1 EN 10028-5 when yielding occurs, that is, the stress resisting micro-plastic deformation. The external force greater than the yield strength will make the EN P 420 ML 1 EN 10028-5 parts permanent failure and unable to recover. Less than this, the EN P 420 ML 1 EN 10028-5 parts will return to their original shape.
Tensile strength is the critical value of transition from uniform plastic deformation to locally concentrated plastic deformation. It is also the maximum load-carrying capacity of EN P 420 ML 1 EN 10028-5 under static tension. Tensile strength is the resistance that characterizes the maximum uniform plastic deformation of EN P 420 ML 1 EN 10028-5. The deformation of tensile specimens is uniform before they bear the maximum tensile stress, but beyond that, the EN P 420 ML 1 EN 10028-5 begins to neck, i.e. concentrate deformation.
| 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) |
|---|---|---|---|---|---|---|
| 461 (≥) | 938 (≥) | 12 | 31 | 14 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 242 |
EN P 420 ML 1 EN 10028-5 Physical properties
Physical performance parameters of EN P 420 ML 1 EN 10028-5 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 P 420 ML 1 EN 10028-5.
| 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 |
|---|---|---|---|---|---|---|---|
| 13 | - | - | 0.34 | - | |||
| 319 | 176 | - | 33.3 | 113 | - | ||
| 726 | - | 12 | 42.2 | 412 | 223 |
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