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ASME SB111 C70600 CuNi 90/10 Copper Nickel Seamless Tube Low Fin Tube For Heat Exchanger NDT ECT

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ASME SB111 C70600 CuNi 90/10 Copper Nickel Seamless Tube Low Fin Tube For Heat Exchanger NDT ECT

Brand Name:	Yuhong
Model Number:	ASME SB111 C70600
MOQ:	100pcs
Price:	Negotiable
Packaging Details:	ply-wooden case with iron frame
Payment Terms:	TT, LC

Detail Information

Product Description

Ratings & Reviews

Detail Information

Place of Origin:

China

Certification:

ABS, BV, DNV, CCS, LR

Material:

Copper Nickel, C70600

Fin Type:

Low Fin Type

Fin Mat:

Coper Alloy Steel

HT, ECT

Application:

HE, Radiator

23-32

Supply Ability:

100kgs

Highlight:

NDT ECT Low Fin Tube

C70600 Low Fin Tube

ASME SB111 Low Fin Tube

Product Description

ASME SB111 C70600, CuNi 90/10, Copper Nickel Seamless Tube Low Fin Tube For Heat Exchanger

Product Description

This is a low finned tube made from ASME SB111 C70600 (90/10 Copper-Nickel), commonly used in marine heat exchangers, condensers, and seawater-cooled systems. The low fins are integrally formed on the outside surface of the base tube, increasing the surface area and heat transfer efficiency without adding external material.

Chemical Composition of C70600 (CuNi 90/10)

Element	Content (%)
Copper (Cu)	88.6 min (including Ni)
Nickel (Ni)	9.0 – 11.0
Iron (Fe)	1.0 – 1.8
Manganese (Mn)	1.0 max
Zinc (Zn)	1.0 max
Lead (Pb)	0.05 max
Others (each)	0.05 max

Mechanical Properties of C70600 Tube

Property	Typical Value
Tensile Strength	≥ 310 MPa (45 ksi)
Yield Strength	≥ 105 MPa (15 ksi)
Elongation	≥ 30%
Hardness	≤ 100 HRB

Advantages C70600 Low Fin Tube Compared to Other Materials

Advantage	Description
1. Superior Seawater Corrosion Resistance	C70600 offers excellent resistance to seawater corrosion, outperforming carbon steel and aluminum, which are prone to rust and pitting in marine environments.
2. Excellent Biofouling Resistance	Copper-nickel naturally resists marine organism growth (e.g., barnacles and algae), reducing maintenance needs—something stainless steel and aluminum can't do without coatings.
3. High Thermal Conductivity	Better heat transfer performance than stainless steel, ensuring more efficient thermal exchange.
4. No Galvanic Corrosion with Fins	Because fins are integrated from the same base material (monometallic), there is no risk of galvanic corrosion—unlike carbon or stainless tubes with aluminum fins.
5. Strong Mechanical Integrity	Maintains ductility and toughness at elevated temperatures and pressures, especially compared to aluminum which is softer and less pressure-resistant.
6. Low Maintenance Requirements	Natural corrosion and biofouling resistance minimize inspection frequency and reduce downtime.
7. Long Service Life in Harsh Environments	Proven reliability in offshore, shipbuilding, and coastal power applications, where stainless steel may suffer from crevice corrosion.
8. Resistance to Stress Corrosion Cracking (SCC)	Better SCC resistance in chloride-rich environments compared to austenitic stainless steels like 304L or 316L.
9. Stable Heat Transfer Over Time	Fewer fouling and corrosion issues ensure consistent performance compared to carbon steel or aluminum fin tubes.

Applications

Marine condensers
Seawater-cooled heat exchangers
Desalination systems
Offshore platform coolers
Power plant condenser systems
Shipbuilding and naval systems

ASME SB111 C70600 CuNi 90/10 Copper Nickel Seamless Tube Low Fin Tube For Heat Exchanger NDT ECT 0

Ratings & Review

Overall Rating

3.7

Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings

5 stars

33%

4 stars

3 stars

67%

2 stars

1 stars

All Reviews

Luis Fuentes

Chile Feb 11.2026

Helpful (5)

Using these in mining cooling equipment under pretty rough conditions. They’ve been running for a month now and are super stable.

Ivan Volkov

Russian Federation Nov 11.2025

Helpful (3)

As an engineer in Siberia, I tested these fin tubes in extreme cold (-30°C). The ASTM A213 T11 steel performed well with no thermal cracks, and cooling efficiency met expectations (88%). That said, the Russian-language documentation had translation errors in technical terms, causing minor confusion during installation.

J*o

Spain Oct 17.2025

Helpful (3)

Really good quality, the ASME SA249 standard is the real deal. I was worried about the fins getting crushed during the long trip, but the packaging was top-notch—not a single one was bent.

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Stainless Steel Boiler Tube

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Alloy Steel Boiler Tube

Carbon Steel Boiler Tube

Fired Heater Parts

Baffle Plate

Tubesheet

products details

Studded Tube

Solid Fin Tube

Serrated Finned tube

Embedded G Fin Tube

Extruded Fin Tube

Wound Fin Tube

Low Fin Tube

Square Fin Tube

Longitudinal Finned Tube

Enhanced Heat Transfer Tube

Fin Tube Support

Return Bend

Heat Exchanger Tube

Stainless Steel Heat Exchanger Tube

Duplex Stainless Steel Heat Exchanger Tube

Super Duplex Stainless Steel Heat Exchanger Tube

Nickel Alloy Steel Heat Exchanger Tube