EN · EN 10028
EN 10028 Standard: Specifications for Flat Products for Pressure Equipment
General technical delivery conditions and classification of the EN 10028 standard
The EN 10028 standard establishes unified requirements for flat steel products used in pressure equipment. EV Group China systematizes these specifications to ensure the supply of metal products that meet rigorous engineering criteria for safety and durability in critical environments.
EN 10028-1: General requirements for flat products for pressure purposes
This part covers general technical delivery regulations for flat products. Compliance parameters are determined based on the principles outlined in EN 10021, ensuring the stability of physical and mechanical properties of products regardless of their intended use within pressure equipment.
EN 10028-2: Steels for elevated temperatures
This specification regulates the parameters of weldable non-alloy and alloy steels that maintain their performance characteristics at high temperatures. EV Group China products compliant with this standard are in high demand in power engineering and the petrochemical industry.
| Grade | P235GH | P265GH | P295GH | P355GH | 16Mo3 | 18MnMo4-5 | 20MnMoNi4-5 | 15NiCuMoNb5-6-4 | 13CrMo4-5 | 13CrMoSi5-5 | 10CrMo9-10 | 12CrMo9-10 | X12CrMo5 | 13CrMoV9-10 | 12CrMoV12-10 | X10CrMoVNb9-1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EN Number | 1.0345 | 1.0425 | 1.0481 | 1.0473 | 1.5415 | 1.5414 | 1.6311 | 1.6368 | 1.7335 | 1.7336 | 1.7380 | 1.7375 | 1.7362 | 1.7703 | 1.7767 | 1.4903 |
EN 10028-3: Normalized fine-grained steels
The standard describes requirements for weldable ferritic fine-grained steels. Grain size control (index 6 or higher according to EN ISO 643) is a critical factor for ensuring toughness and resistance to fracture at low temperatures.
| Grade | P275NH | P275NL1 | P275NL2 | P355N | P355NH | P355NL1 | P355NL2 | P460NH | P460NL1 | P460NL2 |
|---|---|---|---|---|---|---|---|---|---|---|
| EN Number | 1.0487 | 1.0488 | 1.1104 | 1.0562 | 1.0565 | 1.0566 | 1.1106 | 1.8935 | 1.8915 | 1.8918 |
EN 10028-4: Nickel alloy steels for low-temperature service
Specialized grades with high nickel content provide exceptional impact toughness at extremely low temperatures, which is critical for the storage of liquefied gases.
| Grade | 11MnNi5-3 | 13MnNi6-3 | 15NiMn6 | 12Ni14 | X12Ni5 | X8Ni9 | X7Ni9 |
|---|---|---|---|---|---|---|---|
| EN Number | 1.6212 | 1.6217 | 1.6228 | 1.5637 | 1.5680 | 1.5662 | 1.5663 |
EN 10028-5: Thermomechanically rolled steels
EN 10028-5 standards regulate the supply of fine-grained structural steels produced via thermomechanical rolling (TMCP), which allows for a balance between strength and weldability without the need for subsequent heat treatment.
| Grade | P355M | P355ML1 | P355ML2 | P420M | P420ML1 | P420ML2 | P460M | P460ML1 | P460ML2 |
|---|---|---|---|---|---|---|---|---|---|
| EN Number | 1.8821 | 1.8832 | 1.8833 | 1.8824 | 1.8835 | 1.8828 | 1.8826 | 1.8837 | 1.8831 |
EN 10028-6: Quenched and tempered steels
This category of flat products is characterized by high yield strength and tensile strength, achieved through quenching and tempering, making them indispensable for critical equipment components.
| Grade | P355Q | P355QH | P355QL1 | P355QL2 | P460Q | P460QH | P460QL1 | P460QL2 | P500Q | P500QH | P500QL1 | P500QL2 | P690Q | P690QH | P690QL1 | P690QL2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| EN Number | 1.8866 | 1.8867 | 1.8868 | 1.8869 | 1.8870 | 1.8871 | 1.8872 | 1.8864 | 1.8873 | 1.8874 | 1.8875 | 1.8865 | 1.8879 | 1.8880 | 1.8881 | 1.8888 |
EN 10028-7: Stainless steels for pressure vessels
Includes austenitic, ferritic, and duplex stainless steels. These materials enable equipment to operate in aggressive environments while being subjected to high pressure.
| Grade | X2CrNi12 | X2CrTiNb18 | X3CrTi17 | X2CrMoTi17-1 | X6CrNiTi12 | X2CrTi17 | X2CrMoTi18-2 | X6CrMoNb17-1 | X2CrTi21 | X2CrTi24 | X2CrCuNbTiV22-1 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| EN Number | 1.4003 | 1.4509 | 1.4510 | 1.4513 | 1.4516 | 1.4520 | 1.4521 | 1.4526 | 1.4611 | 1.4613 | 1.4622 |