This week, GNEE Steel, a premier global steel manufacturer and exporter with over 18 years of industry experience, was delighted to host a professional delegation from a leading Vietnamese petrochemical and boiler fabrication firm. The primary objective of this visit was to conduct a rigorous technical evaluation and secure a stable supply chain for SA387 GR11 steel plate, a critical material for high-temperature and high-pressure vessel applications.
As a dedicated factory-based supplier, GNEE Steel operates a comprehensive production and testing facility, ensuring that every plate meets the stringent requirements of the ASME and ASTM standards. The visit underscores our growing influence in the Southeast Asian industrial market and our commitment to delivering "Zero-Defect" steel products.

The Vietnamese delegation and GNEE Steel's international sales team in a collaborative meeting room, reviewing technical drawings and SA387 GR11 material specifications
Why the Vietnamese Market is Prioritizing SA387 GR11 Steel Plate
With the rapid expansion of Vietnam's oil and gas, refinery, and power generation sectors, engineers are increasingly demanding materials that can withstand extreme thermal stress. The SA387 GR11 steel plate, a chromium-molybdenum alloy steel, has become the preferred choice due to its exceptional resistance to oxidation and corrosion at elevated temperatures.
During the technical seminar, the Vietnamese clients highlighted their need for plates that offer not only high tensile strength but also excellent weldability for the construction of heat exchangers and pressurized tanks. GNEE's engineering team demonstrated how our specialized heat treatment processes-Normalizing and Tempering (N+T)-ensure that our SA387 GR11 steel plate delivers consistent mechanical properties across the entire surface of the plate.
Factory Tour: Witnessing the Production Excellence of SA387 GR11
To provide full transparency, GNEE Steel invited the delegation to a comprehensive tour of our production line. This "hands-on" experience is vital for establishing trust (E-E-A-T) with international buyers.
The clients observed the precision rolling process where raw ingots are transformed into high-grade alloy plates. They were particularly impressed by our computerized temperature control systems during the cooling phase. "Seeing the level of automation at the GNEE factory gives us great confidence in the structural integrity of the SA387 GR11 steel plate we are sourcing," said the lead procurement officer from the Vietnamese firm.
Technical Specifications: SA387 GR11 Steel Plate Parameters
Understanding the chemical and mechanical balance is essential for pressure vessel safety. Below are the standard parameters for the SA387 GR11 steel plate (Class 2) supplied by GNEE Steel.
| Element / Property | Specification (ASME SA387 Grade 11 Class 2) |
| Chromium (Cr) Content | 1.00% – 1.50% |
| Molybdenum (Mo) Content | 0.44% – 0.65% |
| Tensile Strength | 515 – 690 MPa (75 – 100 ksi) |
| Yield Strength (Min) | 310 MPa (45 ksi) |
| Elongation in 2 in. [50mm] | ≥ 18% |
| Available Thickness | 6mm – 150mm (Customizable) |
| Heat Treatment Options | Annealed, Normalized & Tempered |
| Testing Standards | Ultrasonic (UT), HIC Test, Impact Test |
Quality Assurance and Third-Party Inspection Protocols
A key highlight of the visit was the demonstration of our Quality Management System (QMS). In the GNEE laboratory, the Vietnamese clients witnessed live Ultrasonic Testing (UT) to ensure there were no internal laminations or defects within the SA387 GR11 steel plate samples.

GNEE Steel prides itself on providing complete documentation, including Mill Test Certificates (MTC) according to EN 10204 3.1 or 3.2. We also welcomed the clients' request for third-party inspections by agencies such as SGS or BV, further proving our commitment to transparency and international quality standards. For the Vietnamese energy sector, where safety is non-negotiable, this level of rigor is the foundation of our partnership.
Tailored Logistics and Beveling Services for International Projects
Beyond manufacturing, GNEE Steel offers value-added processing services. The Vietnamese delegation explored our "Ready-to-Weld" solutions, which include precision flame cutting, edge beveling, and shot blasting. By receiving SA387 GR11 steel plate that is already prepped for assembly, the clients can significantly reduce their on-site fabrication time and costs.
Furthermore, we discussed optimized shipping routes from Qingdao and Tianjin ports to Ho Chi Minh City and Hai Phong, ensuring that the heavy alloy plates are packaged securely in seaworthy bundles to prevent any surface oxidation during transit.
Click here to learn more about GNEE's processing services.
Conclusion: Partner with GNEE for Premium SA387 GR11 Steel Plate

The visit from our Vietnamese partners concluded with a signed memorandum of understanding (MoU) for the supply of 300 tons of SA387 GR11 steel plate. This successful exchange proves that GNEE Steel is more than just a supplier; we are a strategic technical partner capable of supporting the world's most demanding industrial projects.
Are you looking for a reliable, factory-direct manufacturer for your next pressure vessel project?
GNEE Steel offers competitive pricing, global delivery, and unparalleled technical support. [Click here to Get a Free Quote] or contact our alloy steel specialists today to request a technical data sheet or a sample of our SA387 GR11 steel plate. Let GNEE provide the strength and durability your infrastructure deserves!




