ASME SB163 N04400 G Type Finned Tube With Al99.5 Fins For Heat Exchanger

ASME SB163 N04400 G Type Finned Tube with Al99.5 Fins For Heat Exchanger

The ASME SB163 N04400 G Type Finned Tube refers to a type of heat exchanger tube made from Monel 400 alloy (UNS N04400) with G-type fins. Monel 400 is a nickel-copper alloy known for its exceptional corrosion resistance, especially in marine and chemical environments. The G-type fin refers to a particular design of external fins that enhance the thermal performance of the tube by increasing its surface area for heat transfer.

Key features of ASME SB163 N04400 G Type Finned Tube with Al99.5 Fins:

1. Material ASME SB163 N04400

(1) Chemical Composition of ASME SB163 N04400 (Alloy 400)

Alloy 400 is a nickel-copper (Ni-Cu) alloy with excellent corrosion resistance. The composition (wt.%) is:

Key Notes:

Primary Phase: Solid solution of Ni-Cu, providing good ductility and weldability.

Resistance: Excellent against seawater, sulfuric & hydrochloric acids, and alkaline solutions.

No Molybdenum or Chromium, unlike more corrosion-resistant alloys like Inconel.

(2) Mechanical Properties of ASME SB163 N04400

The mechanical properties vary based on temper (annealed, cold-worked, etc.). Typical values for seamless tubes (SB163) are:

Room Temperature Properties (Annealed Condition)

Elevated Temperature Strength

Impact Toughness & Other Properties

Charpy Impact (V-Notch): ~100 J (high toughness)

Modulus of Elasticity: ~170 GPa (24.6 x 10⁶ psi)

Density: 8.8 g/cm³

Comparison with Other Nickel Alloys

Key Takeaways:

- N04400 (Alloy 400) is strong, ductile, and corrosion-resistant, making it ideal for heat exchangers, condensers, and marine applications.

- G-Type finned tubes with AL99.5 fins leverage its corrosion resistance while enhancing heat transfer via aluminum fins.

2. G Type Finned Tube

G Type (Embedded Fins): This refers to a finned tube design where the fins are mechanically embedded into the base tube (N04400 in this case) for strong metallurgical bonding.

Common Fin Types:

L-Foot (L Type) – Fins wrapped around the tube.
G-Foot (G Type) – Fins are embedded into grooves for better heat transfer and mechanical stability.

3. AL99.5 Fins

AL99.5: High-purity aluminum (99.5% pure) used for the fins due to its excellent thermal conductivity, lightweight, and corrosion resistance.

Why Aluminum Fins?

- Enhances heat transfer efficiency.

- Cost-effective compared to nickel alloy fins.

- Resistant to oxidation in many environments.

4. Key Benefits of ASME SB163 N04400 G Type Finned Tube with Al99.5 Fins:
- The G-type fin design improves tube heat transfer efficiency by increasing surface area.
- Monel 400 offers outstanding resistance to stress corrosion cracking, pitting, and crevice corrosion in harsh environments.
- Suitable for high-temperature and high-corrosion applications, making it highly versatile for industrial heat transfer systems.

The primary applications of ASME SB163 N04400 G-type finned tubes include:
1. Heat Exchangers
- Used in shell and tube heat exchangers, air-cooled heat exchangers, and other thermal systems due to the enhanced thermal efficiency provided by the fins and Monel 400's corrosion resistance.
- Suitable for applications requiring efficient heat transfer in corrosive environments, such as marine and industrial processes.

2. Petrochemical and Chemical Processing
- Ideal for use in chemical production plants due to its resistance to acids, alkalis, and saline solutions. The finned tube improves the heat transfer in processes involving corrosive media.
- Commonly found in reactors, condensers, and other heat transfer equipment in these industries.

3. Marine Applications
- Excellent for heat exchangers in seawater cooling systems, desalination plants, and shipbuilding due to Monel 400's resistance to saltwater and marine atmospheres.

4. Oil and Gas Industry
- Used in offshore platforms and refineries for heat exchange systems where resistance to sour gas (hydrogen sulfide) and seawater is essential.
- Suitable for cooling and heating fluids in harsh environments.

5. Power Generation
- Applied in power plants, especially in environments where corrosion resistance is vital, such as cooling systems facing seawater or fouling conditions.

6. Aerospace Industry
- Used in thermal systems exposed to corrosive fluids or environments due to the alloy's ability to withstand extreme conditions.

7. Pollution Control Equipment
- Incorporated in heat exchangers for emissions control systems, such as scrubbers, where corrosive chemical exposure is common.

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.