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ASTM B111 C71500 Copper Nickel Tube Superior Seawater Corrosion Resistance For Heat Exchangers

ASTM B111 C71500 Copper Nickel Tube (90-10 CuNi) | Seawater Corrosion Resistant Tubes Supplier

Brief Introduction

ASTM B111 C71500 Copper Nickel (90-10 CuNi) Tubes are engineered for extreme corrosion resistance in marine and industrial environments. As a premier supplier, we provide seamless and welded tubes compliant with ASTM B111 standards, delivering unmatched performance in heat exchangers, condensers, and offshore applications.

Chemical Composition (ASTM B111 Compliance)

Element

Composition (%)

ASTM B111 Requirement

Copper (Cu)

88.6 - 90.0

Balance

Nickel (Ni)

9.0 - 11.0

Iron (Fe)

1.3 - 1.8

1.0 - 1.8

Manganese (Mn)

0.3 - 0.8

0.30 - 1.0

Lead (Pb)

≤ 0.02

≤ 0.05

Zinc (Zn)

≤ 0.20

≤ 0.50

Other Impurities

≤ 0.3

≤ 0.5 (Total)

Equivalent Grades & International Standards

Region	Standard	Equivalent Grade
USA	ASTM B111	C71500
Europe	EN 12451	CuNi10Fe1Mn
Germany	DIN 17664	2.0872
Japan	JIS H3500	C7150
ISO	ISO 1634	CuNi10Fe1Mn

C71500 Mechanical Properties ASTM B111

Property

Annealed Condition

Hard Temper (Drawn)

Tensile Strength (min)

45 ksi (310 MPa)

60 ksi (415 MPa)

Yield Strength (0.2% offset)

15 ksi (105 MPa)

45 ksi (310 MPa)

Elongation (in 2")

35% min

15% min

Hardness (Rockwell B)

45 HRB

85 HRB

Key Advantages

Superior Seawater Corrosion Resistance

Low corrosion rate (<0.025 mm/year) in flowing seawater.
Resists pitting and stress corrosion cracking in chloride environments.

Biofouling Resistance

Inhibits marine organism attachment – reduces maintenance costs.

High Thermal Conductivity

29 W/m·K (vs. 16 W/m·K for 316 stainless steel) – ideal for heat exchangers.

Erosion Resistance

Withstands high-velocity seawater (up to 3.5 m/s).

Application Fields

Industry

Critical Applications

Marine Engineering

Shipboard condensers, seawater piping, desalination plants

Power Generation

Steam condenser tubes, heat exchanger tubing

Oil & Gas

Offshore platform cooling systems, brine heat exchangers

Chemical Processing

Acid cooling systems, evaporator tubes

Desalination

Multi-stage flash (MSF) evaporator tubes

Product Tags:

Corrosion Resistance Copper Nickel Tube

ASTM B111 Copper Nickel Tube

C71500 Copper Nickel Tube

ASTM B111 C71500 Copper Nickel Tube Superior Seawater Corrosion Resistance For Heat Exchangers

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Categories	Copper Alloy Tube
Brand Name:	YUHONG
Model Number:	ASTM B111 C71500
Certification:	ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Place of Origin:	CHINA
MOQ:	100KGS
Price:	Negotiable
Payment Terms:	L/C,T/T
Supply Ability:	1000 tons per month
Delivery Time:	Depends on quantity
Packaging Details:	Ply-wooden Case /Iron Case/ Bundle with plastic Cap/Woven Case
ASTM Standard:	ASTM B111
Alloy Grade:	C71500 (UNS C71500)
Material Equivalent:	CuNi 90/10, CW354H
Tube Type:	Seamless
Outer Diameter (OD) Range:	1/4" to 8" (6.35mm - 203mm)
Wall Thickness (WT):	Schedule 10S \| 0.083" (2.11mm)
Temper/Condition:	Annealed (O) \| Hard Drawn (H80)
Max Working Pressure:	500 psi @ 100°F (3.45 MPa)