GNEE Steel Delivers P275N Steel Plates To UAE Supporting Oil & Gas Pressure Equipment Manufacturing

Recently, GNEE Steel completed the export shipment of a batch of P275N carbon steel plates, which have been successfully sent to the United Arab Emirates (UAE) and will be used in pressure equipment manufacturing projects in the local oil and gas industry. This shipment further consolidates GNEE Steel's supply position in the Middle East pressure vessel steel plate market.

The UAE and the entire Middle East region are important hubs of the global oil and gas industry, with long-term stable growth in demand for pressure vessels, storage tanks, separators, and auxiliary pressure-bearing equipment. In these applications, P275N steel plates have become one of the commonly used materials for medium and small-sized pressure-bearing equipment due to their excellent comprehensive mechanical properties, stable welding performance, and reasonable cost advantages.

In oil and gas projects, steel plates not only need to meet design strength requirements but also must have good processing performance to adapt to the complex manufacturing and installation environment on-site. P275N steel plates perform stably in weldability and formability, helping to reduce overall project manufacturing risks.

In response to the Middle East customers' high emphasis on sea transportation safety and steel plate rust prevention performance, GNEE Steel adopted a comprehensive packaging solution of moisture-proof film + reinforced steel straps + export-grade wooden pallets in this shipment. This effectively copes with the high-temperature, high-humidity, and long-distance transportation environment, ensuring the steel plates remain in good condition upon arrival at the port.

In addition, GNEE Steel can provide supporting services such as third-party inspection (SGS/BV), UT testing, size customization, and cutting processing according to project requirements, helping customers reduce costs associated with multiple purchases and communications.

Over the years, GNEE Steel has continuously provided pressure vessel steel plate solutions to Middle Eastern countries such as the UAE, Saudi Arabia, Qatar, and Oman, accumulating a large number of successful cases in steel grades such as P275N, P355, SA516, and Q345R.

Through stable supply capacity and flexible trade support, GNEE Steel can effectively address challenges commonly encountered in Middle Eastern projects, such as tight delivery schedules, large number of batches, and complex specifications.

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📩 If you are looking for a reliable P275N steel plate supplier for oil & gas projects in the Middle East, GNEE Steel will be a trustworthy partner.

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.