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Copper Nickel

Copper Nickel

C70600 90/10 Copper Nickel

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Strength and Performance in Extreme Environments

90/10 Cupro-Nickel (C70600 CuNi) is a premium copper-nickel alloy valued for its exceptional resistance to stress and seawater corrosion, making it ideal for marine and industrial environments. Alloyed with small amounts of iron and manganese, it delivers outstanding durability in high-velocity seawater. Its excellent hot and cold workability allows easy fabrication, welding, and forming. Widely used in tubes, condensers, evaporators, and heat exchangers, C70600 also offers natural antimicrobial properties for hygienic applications. Combining corrosion resistance, strength, and versatility, 90/10 Copper Nickel ensures reliable, long-term performance across demanding industrial, marine, and healthcare settings.

 

Available Shapes for

C70600 90/10 Copper Nickel

Plate
Plate
Sheet
Sheet
Bar
Bar
Pipe
Pipe
Tube
Tube
Casting
Casting
Forging
Forging
Flange
Flange

Applications for

C70600 90/10 Copper Nickel

Condensers
Condenser Tubes
Evaporators
Evaporator Tubes
Fasteners
Fittings
Fire Supression Systems
Flanges
Heat Exchangers
Impellers
Pump Bodies
Tubesheets
Valve Bodies

Description

90/10 Cupro-Nickel (C70600 CuNi) is a premium copper-nickel alloy valued for its exceptional resistance to stress and seawater corrosion, making it ideal for marine and industrial environments. Alloyed with small amounts of iron and manganese, it delivers outstanding durability in high-velocity seawater. Its excellent hot and cold workability allows easy fabrication, welding, and forming. Widely used in tubes, condensers, evaporators, and heat exchangers, C70600 also offers natural antimicrobial properties for hygienic applications. Combining corrosion resistance, strength, and versatility, 90/10 Copper Nickel ensures reliable, long-term performance across demanding industrial, marine, and healthcare settings.

 

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  • Specifications
  • Mechanical Properties
  • Composition
  • Physical Properties
  • Applications
C70600 90/10 Copper Nickel Download PDF   PDF
Bar ASTM B151 ASME SB-151 MIL-C-15726
Forging MIL-C-24679
Sheet ASTM B171 ASME SB-171 MIL-C-15726
Plate ASTM B171 ASME SB-171 MIL-C-15726
Pipe ASTM B466 ASME SB-466 MIL-T-16420
Tube ASTM B111 ASME SB-111 MIL-T-15005
BAR – Round, Hex and Square
Commercial
TEMPER SIZE TENSILE, KSI, MIN YIELD@0.5%, KSI, MIN Elong. % Min
O60 All Sizes 38 15 30
H04 up to 3/8″ 60 38 10
over 3/8″ to 1″ 50 30 15
over 1″ to 3″ 40 15 30
over 3″ to 5″ 38 15 20
MIL-C-15726
TEMPER SIZE TENSILE, KSI, MIN YIELD@0.5%, KSI, MIN Elong. % Min
O60 All Sizes 38 15 30
H04 up to 3/8″ 60 38 10
over 3/8″ to 1″ 50 30 15
over 1″ to 3″ 40 15 30
SHEET/PLATE
Commercial
TEMPER SIZE TENSILE, KSI, MIN YIELD@0.5%, KSI, MIN Elong. % Min
M20 / O25 up to 2-1/2″ 40 15 30
over 2-1/2″ 40 15 30
MIL-C-15726
TEMPER SIZE TENSILE, KSI, MIN YIELD@0.5%, KSI, MIN Elong. % Min
O60 up to 3/16″ 38 15 25
M20 Soft over 3/16″ 38 15 30
H01 up to 3/16″ x 24″ wide 55 30 10
H01 up to 3/16″ x over 24″ wide 47 25 10
M20 Hard up to 1/2″ x over 24″ wide 47 25 15
M20 Hard over 1/2″ to 3″ x all widths 40 17 20
M20 Hard over 3″ to 5″ x all widths 38 15 20
PIPE
Commercial
TEMPER SIZE TENSILE, KSI, MIN YIELD@0.5%, KSI, MIN Elong. % Min
O60 All Sizes 38 13 N/A
H80 All Sizes 50 40 N/A
MIL-T-16420
TEMPER SIZE TENSILE, KSI, MIN YIELD@0.5%, KSI, MIN Elong. % Min
O60 up to 4-1/2″ 38 15 30
over 4-1/2″ 38 13 30
TUBE
Commercial
TEMPER SIZE TENSILE, KSI, MIN YIELD@0.5%, KSI, MIN Elong. % Min
O61 All Sizes 40 15 N/A
MIL-T-15005
TEMPER SIZE TENSILE, KSI, MIN YIELD@0.5%, KSI, MIN Elong. % Min
O61 All Sizes 40 15 N/A
COMMERCIAL
UNS No. Copper + Silver Nickel + Cobalt Manganese Lead Iron Zinc Phosphorus Sulfur Carbon
C70600 remainder 9.0-11.0 1.0 max 0.05a max 1.0-1.8 1.0a
C70620 86.5 min 9.0-11.0 1.0 max 0.02 1.0-1.8 0.5 max 0.02 max 0.02 max 0.05 max
aFor subsequent welding application, max levels are: Zinc 0.50, Lead 0.02, Phosphorus 0.02, Sulfur 0.02, Carbon 0.05
MIL-C-15726
UNS No. Copper Nickel Manganese Lead Iron Zinc Phosphorus Sulfur Carbon Cu + plus elements with specific limits, min
C70600 86.5 min 9.0-11.0 1.0 max 0.02 1.0-1.8 0.5 max 0.02 max 0.02 max 0.05 max 99.5
MIL-T-16420
UNS No. Copper + Silver Nickel + Cobalt Manganese Lead Iron Zinc Phosphorus Sulfur Carbon Cu + plus elements with specific limits, min
C70600 86.5 min 9.0-11.0 1.0 max 0.02 1.0-1.8 0.5 max 0.02 max 0.02 max 0.05 max 99.5
MIL-T-15005
UNS No. Copper + Silver Nickel + Cobalt Manganese Lead Iron Zinc Phosphorus Sulfur Carbon
C70600 remainder 9.0-11.0 1.0 max 0.05 max 1.0-1.8 1.0 max
Density @ 68o F 0.323 lb/in3
Melting Range 2010-2095o F
Hot Formability Good
Cold Formability Excellent
Machinability rating (C360 = 100) 20
Brazing Good
Soldering Excellent
Gas-shielded arc welding Excellent
Oxy-acetylene welding Not recommended
Carbon-arc welding Not recommended
Coated metal-arc welding Good
Resistant welding: spot and seam Good
Resistance Welding: butt Good
* Condensers
* Evaporators
* Tubesheets
* Valve Bodies
* Pump Bodies
* Impellers
* Fire Supression Systems
* Heat Exchangers
* Fasteners
* Fittings
* Flanges
* Architectural
* Antimicrobial Surfaces