Characteristics of EN10120 P310NB Steel
Designed Specifically for Pressure Vessels
P310NB is a typical grade under the European standard EN 10120, classified as a fine-grain structural steel. In its naming convention, "P" stands for steel for pressure vessels, "310" indicates a minimum yield strength of 310 MPa, and "NB" highlights its suitability for welded structures.
High Strength and Excellent Toughness
Yield Strength: 310–390 MPa
Tensile Strength: 410–510 MPa
Elongation: ≥24%
Low-Temperature Toughness: Maintains excellent impact toughness at -20°C, meeting stringent safety requirements for pressure vessels.
Superior Weldability
The weld zone is resistant to cracking, making it suitable for automated welding processes such as oxyacetylene welding.
Optimized chemical composition (e.g., low carbon, low sulfur and phosphorus content) reduces the risk of brittleness during welding.
