. Marine Engineering and Seawater Treatment

Seawater Desalination and Cooling Systems

Reverse Osmosis (RO) Membrane Housings and High-Pressure Pumps: In Middle Eastern desalination projects, NAS255 RO membrane housings tolerate seawater with Cl⁻ 19,000 mg/L. Their fine-grained structure enhances crack propagation resistance by 40% compared to 316L, extending replacement cycles from 5 to 15 years.

Evaporator Tubing: In multi-stage flash (MSF) systems, NAS255 tubing in brine with Cl⁻ up to 100,000 mg/L shows an annual corrosion rate of only 0.0004 mm, far lower than traditional stainless steels.

Offshore Platforms and Marine Structures

Deep-Sea Risers and Mooring Systems: A Norwegian offshore platform uses NAS255 risers in 1,500-meter 水深 high-pressure (>300 bar) sulfide-containing seawater. Their tensile strength (≥650 MPa) and H₂S corrosion resistance ensure 20 years of failure-free operation.

Marine Seawater Cooling Pipes: NAS255 seamless pipes in ship cooling systems resist seawater erosion and microbial corrosion. Their crevice corrosion resistance (PREN≈40) outperforms 316L, reducing localized corrosion from biofilm adhesion.

 

 

 

 

 

 

 

 

 

 

 

 

 

Why Choose Us?
We take pride in our ability to provide custom solutions for our customers' unique needs.
We analyze and compare the previous products and the current technical situation of our ALLOY NAS255 STEEL PLATE, and develop new technical specifications and processes.
Our customers trust us to deliver high-quality Cold-rolled Steel products on time and on budget.
We strictly implement the warm and thoughtful after-sales service, adhere to the development of good professional ethics.
We offer a wide range of Cold-rolled Steel products to meet diverse customer needs.
We adhere to the customer-centric and brand-oriented business philosophy, and continue to provide customers with reliable and excellent products and services.
Our factory is committed to upholding the highest standards of safety and quality.
All staff of our company and all departments work together to combine business management, professional technology, quantitative statistical methods and ideological education.
Our Cold-rolled Steel products are known for their durability and reliability.
Relying on the superior conditions and strong advantages of mass production, we are able to meet the different needs of our customers.

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