GNEE Steel EN 10028 P275N Steel Plates Exported To Germany For Pressure Vessel & Energy Equipment Projects

Recently, GNEE Steel has successfully completed an export order for EN 10028 P275N pressure vessel steel plates, which have been shipped to Germany and will be applied in a pressure vessel and energy-related equipment project of a local engineering equipment manufacturer. This cooperation once again demonstrates GNEE Steel's professional expertise and reliable delivery capability in the supply of European-standard pressure vessel steel plates.

Real Demand for P275N Steel Plates in the German Market

As a core country of European industrial manufacturing, Germany has extremely high requirements for steel quality, standard compliance, and documentation systems. In the manufacturing of pressure vessels, storage tanks, heat exchangers, and auxiliary energy equipment, P275N steel plates are widely used in pressure-bearing structures under medium and low temperature conditions due to their favorable yield strength, stable chemical composition, and excellent weldability.

Compared with ordinary carbon steel, P275N steel plates offer advantages in safety factor, service stability, and long-term operational reliability, making them highly suitable for Germany's dual requirements of "safety compliance" and "long-term use".

Strict Compliance with EN 10028 Standards for European Requirements

All P275N steel plates exported this time were produced strictly in accordance with the EN 10028-2 standard and provided with complete EN 10204 3.1 material certification documents, including chemical composition, mechanical properties, and production batch information. These documents ensure full-process traceability of the materials, meeting the compliance requirements of German customers in project audits and equipment certification.

During production, GNEE Steel focused on controlling thickness tolerance, surface quality, and plate shape to ensure good processing stability of the steel plates in subsequent welding, forming, and assembly processes, thereby reducing customers' manufacturing risks.

Customized Services to Enhance Project Execution Efficiency

To meet the German customers' high requirements for processing efficiency and delivery stability, GNEE Steel provided customized services including fixed-size cutting, UT testing, and project batch management, helping customers effectively shorten project preparation cycles and reduce inventory and secondary processing costs.

Years of Export Experience in Pressure Vessel Steel Plates

Over the years, GNEE Steel has successfully exported various pressure vessel steel plates to Germany and surrounding European countries, such as P355, 16Mo3, and SA516 Gr.70, which are widely used in chemical, energy, machinery manufacturing, and environmental protection engineering fields.

GNEE Steel: A Trusted Supplier of European Pressure Vessel Steel Plates

With a mature quality system, stable production capacity, and extensive export experience, GNEE Steel has become a reliable P275N steel plate supplier for more and more European customers.

📌 If you are looking for EN standard-compliant P275N steel plates for European projects, please contact GNEE Steel to obtain detailed technical data and project quotations.

Request A Quote

FAQ

What are the core differences between P275N, P275NH, P275NL1, and P275NL2?

The core differences lie in impact test temperature and applicable working conditions. All four grades have a minimum yield strength of ≥275MPa (for thickness ≤16mm) and comply with the EN 10028-3 standard:

P275N: Impact test at -20°C, suitable for normal-temperature pressure vessels and general industrial pipelines;

P275NH: Impact test at -20°C, optimized for high-temperature performance, adaptable to medium-to-high temperature pressure equipment below 350°C;

P275NL1: Impact test at -40°C, suitable for low-temperature storage tanks and separators in cold regions;

P275NL2: Impact test at -50°C, offering the best ultra-low temperature toughness, adaptable to cryogenic equipment such as liquid nitrogen/LNG systems.

What are the corresponding numerical designations for these four grades?

P275N: 1.0483;

P275NH: 1.0485;

P275NL1: 1.0488;

P275NL2: 1.1104.

Does thickness affect performance?

Yes, it does. When the thickness exceeds 16mm, the yield strength gradually decreases (e.g., ≥245MPa for 63~100mm), and the low-temperature toughness also slightly declines. For ultra-low temperature working conditions with thickness ＞40mm, it is recommended to prioritize P275NL2 and increase the sampling ratio for impact tests.

What are the key mechanical property indicators of the four grades?

Yield Strength (ReH): ≥275MPa for thickness ≤16mm, slightly decreasing with increasing thickness (e.g., ≥255MPa for 40~63mm);

Tensile Strength (Rm): 410~560MPa;

Impact Energy (KV): ≥27J for each corresponding impact temperature (regular supply meets ≥40J to enhance safety redundancy);

Elongation (A): ≥22%~24% (adjusted with thickness).

What is the range of available dimensions?

Thickness: 6mm~300mm;

Width: 1500mm~4800mm;

Length: 6000mm~18000mm;

Customized cutting, drilling, and beveling services are available, with a minimum cutting size of 500×500mm.

How is the weldability, and what are the welding recommendations?

It has excellent weldability (CEV ≤0.43%), with recommended solutions:

Welding Consumables: E5515-C1 for manual arc welding, H08MnA+F55A4 flux for submerged arc welding, and ER50-6 for gas metal arc welding;

Preheating Requirement: No preheating required for thickness ≤30mm; preheat to 100~150°C for thickness ＞30mm;

Interpass Temperature: ≤250°C, with heat input controlled at 15~35kJ/cm;

Post-Weld Heat Treatment (PWHT): Recommended for thick plates (＞50mm) – stress relief annealing at 580~620°C for 2 hours.

Can the P275 series be substituted for ASTM A516 Gr70 (American standard) or Q345R (Chinese standard)?

vs. ASTM A516 Gr70: Similar strength, but the P275 series offers better low-temperature toughness . The P275 series is preferred for European projects, while ASTM A516 Gr70 is suitable for North American projects;

vs. Q345R (GB 713): Q345R has higher yield strength (≥345MPa), but the P275 series excels in low-temperature performance (-20°C impact) and high-temperature stability. For international projects, it is recommended to select according to the EN standard first.

What are the differences between P275NL1/NL2 and 16MnDR (Chinese standard)?

16MnDR (GB 3531): Impact test at -40°C, yield strength ≥315MPa, suitable for domestic low-temperature projects;

P275NL1: Impact test at -40°C, yield strength ≥275MPa, belonging to the European standard system with higher international recognition;

P275NL2: Impact test at -50°C, offering better low-temperature toughness than 16MnDR, adaptable to more severe cryogenic working conditions.

What is the difference between P275NL1 and P275NL2?

P275NL1 is a low-temperature grade with a minimum yield strength of 275 MPa. It is particularly suitable for applications involving low-temperature storage and transportation of gases and liquids. P275NL2 is similar to P275NL1 but offers improved toughness at low temperatures.