ASME SB163 N04400 Seamless Nickel And Nickel Alloy Embedded G Type Fin Tube For Petrochemical Industry

1. What is ASME SB163 N04400 G-Type Fin Tube?

Engineered for marine/chemical high-corrosion scenarios, this Monel 400 (UNS N04400) nickel-copper alloy fin tube meets ASME SB163 standards, featuring helically wound G-type fins cold-formed from the same material for an integral monolithic design. It eliminates galvanic corrosion risks, excelling in seawater, hydrofluoric acid, and high-velocity steam up to 480°C (896°F). With 5x longer lifespan than stainless steel in chloride-rich services, it’s the trusted choice for offshore platforms and chemical processing plants.

2. Chemical & Mechanical Properties

Chemical Composition (Per ASME SB163/ ASTM B163)

Mechanical Properties (Integral Fin Tube System)

3. Key Applications & Competitive Advantages

· Offshore Oil & Gas: Seawater coolers on FPSO vessels & platforms.

· Chemical Processing: HF alkylation unit heat exchangers.

· Desalination Plants: Brine heaters in MED/MSF systems.

· Marine Propulsion: Condensers for naval vessels.

· Nuclear Power: Auxiliary cooling systems (ASME III certified).

4. Why This Solution is Unrivaled:
· 20+ Year Lifespan: Verified in North Sea splash zone per NORSOK M-001.
· Zero Maintenance: Immune to pitting/crevice corrosion in chlorides.
· Thermal Efficiency: 22% higher HTC vs. bimetallic tubes (per TEMA data).
· Customization: Fin density (4-12 FPI), tube OD (15.88–50.8mm), and length (≤18m).

Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories,  the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always.   The factories already got certificates like : ABS, LR, DNV-GL, BV, KR, CCS, ASME, ISO 9001, ISO14001, ISO18001, ect.

Our factories main products as below : 
Factory 1th: Stainless steel seamless tube, Duplex steel seamless tube, Super duplex steel seamless tube, Nickel alloy steel seamless tube;

Factory 2th: Carbon steel seamless tube, Alloy steel seamless tube; Enhanced Heat Tranfer Tube, low fin tube ,U bending workshop;
Factory 3th: High frequency welding fin tube(HFW fin tube, Solid Fin tube, Studded Tube, Serrated Fin tube, Longitudinal welding fin tube), Wound fin tube(L type fin tube, LL type fin tube,  KL type fin tube), Embedded G type fin tube , Extruded fin tube,  low fin tube, U bend & 180deg. Return;

Yuhong Holding Group also has gained rich experience for project package( products contain:Pipes, Fittings, Flanges, heat exchanger, furnace, fired heater, air cooler, boiler) , YUHONG brand has marked its global presence in more than 85 countries, like, Korea, USA, Canada, Mexico, Colombia, Bolivia, Chile, Argentina, Brazil, Ecuador, Austria, New Zealand, Singapore, Malasyia, Indonesia, Thailand, Vietnam, Ukraine, Turkey,Sauid Arabia, Qatar, U.A.E,Israel,India, UK, France, Italy, Gernmany, Poland, Spain,... We have successfully implemented the orders of Cross Country Pipelines for our valuable customers. In addition, we have also developed a huge network of contacts and strategic alliances with most important manufacturers as stockists around the world.