COPPER NICKEL 70/30 / CUPRO NICKEL UNS C71500 / CUNI10FE1MN

Copper Alloy 70 / 30 is a copper-nickel alloy consist of 70% copper, 30% nickel alloy with additions of iron and manganese. It exhibits excellent resistance to corrosion and erosion. It is strong and ductile. 70 30 Cu Ni exhibits outstanding resistance to general and impingent attack by clean sea water. however, subject to bio-fouling at low velocities.

Cu-Ni 70 30 is majorly used in heat exchangers and unfired pressure vessels widely combined with high velocities and turbulence are serious problems. Copper-nickel 70/30 compounds can be welded utilizing covered metal circular segment welding, butt welding, binding and oxyacetylene welding forms.

CU-NI UNS C71500 CHEMICAL COMPOSITION

Element Min/Max Nominal
Cu Rem 65.0
Fe 0.40-1.0 1.4
Pb 0.05
Mn 1.0
Ni 29.0-33.0
Zn 10.0

COPPER NICKEL UNS C71500 MECHANICAL PROPERTIES :

Form Temper Temper Code Tensile Strength (ksi) YS-0.5% Ext (ksi) Elongation (%) Rockwell B scale Rockwell F scale Section Size (in) Cold Work (%)
Flat Products As Hot Rolled M20 55 Typ 20   Typ 45   Typ 35   Typ   1  
Rod 1/2 Hard H02 75   Typ 70   Typ 15   Typ 80   Typ   1 20
Tube Nominal Grain Size 0.025 mm OS025 60   Typ 25   Typ 45   Typ 45   Typ 80   Typ    
Nominal Grain Size 0.035 mm OS035 54   Typ   45   Typ 36   Typ 77   Typ    

CUPRO NICKEL UNS C71500 PHYSICAL PROPERTIES :

Melting Point – Liquidus°F 2260
Melting Point – Solidus°F 2140
Densitylb/cu in. at 68°F 0.323
Specific Gravity 8.94
Electrical Conductivity% IACS at 68°F 4.6
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F 17
Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F) 9
Specific Heat CapacityBtu/ lb /°F at 68°F 0.09
Modulus of Elasticity in Tensionksi 22000
Modulus of Rigidityksi 8300

SPECIFICATIONS AND DESIGNATIONS

STANDARD WERKSTOFF NR. UNS
Copper Nickel 70/30 2.0882 C71500

AVAILABLE TYPES OF COPPER NICKEL 70/30 / UNS C71500 GRADES PRODUCTS

COPPER NICKEL 70/30 PIPES & TUBES

COPPER NICKEL 70/30 FLANGES

COPPER NICKEL 70/30 PIPE FITTINGS

COPPER NICKEL 70/30 FORGED FITTINGS

COPPER NICKEL 70/30 FASTENERS

COPPER NICKEL 70/30 TUBE FITTINGS

COPPER NICKEL 70/30 ROUND BARS

COPPER NICKEL 70/30 SHEETS & PLATES