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The demand for reliable materials in cryogenic service applications has increased significantly with the rapid growth of LNG terminals, industrial gas storage facilities, and low-temperature pressure vessels.2026-06-24
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As the global demand for liquefied natural gas (LNG) continues to grow, the need for reliable materials for cryogenic storage systems has become increasingly important.2026-06-18
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For engineers specifying materials for cryogenic pressure vessels, finding the balance between strength and ductility at sub-zero temperatures is challenging.2026-06-12
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In industries where equipment must operate reliably under freezing or cryogenic conditions, material selection becomes a matter of safety and structural integrity.2026-06-01
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While both ASTM A203 Grade B and ASTM A106 Grade B serve critical roles in industrial applications, they are fundamentally different in composition, purpose, and performance.2026-06-01
EN 10028-3 P 275 NL1 steel, EN 10028-3 P 275 NL1 steel hardness and heat treatment specification
EN 10028-3 P 275 NL1 steel is one kind of boiler and pressure vessel steel. EN 10028-3 P 275 NL1 steel is widely used in petroleum, chemical engineering, power plants, boilers and other industries for the production of the reactor, heat exchangers, separators, tank, gas tank, nuclear reactor pressure vessel, boiler, liquefied petroleum gas cylinders, Hydropower high-pressure pipes, turbine spiral case equipment and components.
EN 10028-3 P 275 NL1 steel hardness and heat treatment specification:
|
Annealing hardness |
Cold pull hardness |
Preheating temperature |
Quenching temperature |
Holding time |
Hardening medium |
Temper temperature |
After tempering hardness |
|
|
salt-bath furnace |
controlled atmosphere furnace |
|||||||
|
235 |
262 |
788 |
1191 |
1204 |
5~15 |
air cooling |
522 |
60 |
|
Steel plate/Sheet |
σb |
σs |
δ |
180 ° of cold bending test |
|
|
longitudinal |
horizontal |
||||
|
Hot-rolled/Cold rolling:5 - 150 |
520 |
415 |
16~18 |
2a |
3.5a |
|
Note: |
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BEBON STEEL can offer a lot of EN 10028-3 P 275 NL1 steel, otherwise, including its chemical composition and mechanical property. If you are interested in EN 10028-3 P 275 NL1 steel, please contact BEBON STEEL.


