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니켈동(백동, Cupro Nickel, Cu-Ni20%)
CDA/UNS C71000 (Copper-Nickel, 20%)


Chemical Composition
(%max., unless shown as range or min.)
  Cu(1) Fe Pb Mn Ni(2) Zn
Min./Max. Rem. 1.0 .05 1.0 19.0-23.0 1.0
(1) Cu value includes Ag.
(2) Ni value includes Co.
Note: Cu + Sum of Named Elements, 99.5% min.

Applicable Specifications

Product Specification
Bar ASTM B122
SAE J461, J463
Bolts ASTM F468
Nuts ASTM F467
Pipe, Seamless ASME SB466
ASTM B466
Plate ASTM B122, B122
Screws ASTM F468
Sheet ASTM B122, B694
SAE J461, J463
Strip ASTM B122, B694
SAE J461, J463
Studs ASTM F468
Tube ASTM B543
Tube, Condenser ASME SB111
ASTM B111
SAE J461, J463
Tube, Finned ASME SB359
ASTM B359
Tube, Seamless ASME SB466
ASTM B466
Tube, U-Bend ASME SB395
ASTM B395
Wire ASTM B206
 

Common Fabrication Processes
Blanking, Forming and Bending, Welding

Fabrication Properties

Joining Technique Suitability
Soldering Excellent
Brazing Excellent
Oxyacetylene Welding Fair
Gas Shielded Arc Welding Excellent
Coated Metal Arc Welding Good
Spot Weld Excellent
Seam Weld Excellent
Butt Weld Excellent
Capacity for Being Cold Worked Good
Capacity for Being Hot Formed Good
Machinability Rating 20

 

Mechanical Properties (measured at room temperature, 68 F (20 C)
Temper Section
Size		 Cold
Work		 Typ/
Min		 Temp Tensile
Strength		 Yield
Strength
(0.5% ext.
under load)		 Yield
Strength
(0.2%
offset)		 Yield
Strength
(0.05%
offset)		 El Rockwell
Hardness		 Vickens
Hard.		 Brinell
Hard.		 Shear
Strength		 Fatigue
Strength*		 Izod
Impact
Strength
  in. %   F ksi ksi ksi ksi % B C F 30T 500 500 3000 ksi ksi ft-lb
  mm.     C MPa MPa MPa MPa                 MPa MPa J
Tube
H55 0.0 0 TYP 68 68 62 - - 14 76 - - - - - - - 20 0.0
  0.0     20 469 427 - - 14 76 - - - - - - - 138 0.0
OS025 0.0 0 TYP 68 49 18 - - 40 - - 72 - - - - - - 0.0
  0.0     20 338 124 - - 40 - - 72 - - - - - - 0.0
Wire
H10 0.08 0 TYP 68 95 85 - - 5 - - - - - - - - - 0.0
  2     20 655 586 - - 5 - - - - - - - - - 0.0
Flat Products
H01 0.04 0 TYP 68 60 48 49 - 20 58 - 92 - - - - - - 0.0
  1     20 414 331 338 - 20 58 - 92 - - - - - - 0.0
H02 0.04 0 TYP 68 68 62 63 - 8 75 - 100 - - - - - - 0.0
  1     20 469 427 434 - 8 75 - 100 - - - - - - 0.0
H04 0.04 0 TYP 68 75 71 72 - 5 80 - - - - - - - - 0.0
  1     20 517 490 496 - 5 80 - - - - - - - - 0.0
H06 0.04 0 TYP 68 78 75 76 - 4 82 - - - - - - - - 0.0
  1     20 538 517 524 - 4 82 - - - - - - - - 0.0
H08 0.04 0 TYP 68 82 78 79 - 3 84 - - - - - - - - 0.0
  1     20 565 538 545 - 3 84 - - - - - - - - 0.0
H10 0.04 0 TYP 68 85 78 79 - 3 86 - - - - - - - - 0.0
  1     20 586 538 545 - 3 86 - - - - - - - - 0.0
OS025 0.04 0 TYP 68 53 16 16 - 35 30 - 75 - - - - - - 0.0
  1     20 365 110 110 - 35 30 - 75 - - - - - - 0.0
OS035 0.04 0 TYP 68 52 14 14 - 35 27 - 73 - - - - - - 0.0
  1     20 359 97 97 - 35 27 - 73 - - - - - - 0.0
OS050 0.04 0 TYP 68 51 13 13 - 35 25 - 72 - - - - - - 0.0
  1     20 352 90 90 - 35 25 - 72 - - - - - - 0.0
                                       
*Fatigue Strength: 100 x 10 6cycles,
unless indicated as [N]X 106.

Physical Properties

  US Customary Metric
Melting Point - Liquidus 2190 F 1199 C
Melting Point - Solidus 2100 F 1149 C
Density 0.323 lb/in3 at 68 F 8.94 gm/cm3 @ 20 C
Specific Gravity 8.94 8.94
Electrical Resistivity 160.0 ohms-cmil/ft @ 68 F 26.6 microhm-cm @ 20 C
Electrical Conductivity 6 %IACS @ 68 F 0.038 MegaSiemens/cm @ 20 C
Thermal Conductivity 21.0 Btu · ft/(hr · ft2·oF)at 68F 36.3 W/m · oK at 20 C
Coefficient of Thermal Expansion 9.1 ·10-6 per oF (68-572 F) 16.4 ·10-6 per oC (20-300 C)
Specific Heat Capacity 0.09 Btu/lb/oF at 68 F 377.1 J/kg · oK at 293 K
Modulas of Elasticity in Tension 20000 ksi 138000 MPa
Modulus of Rigidity 7500 ksi 51700 MPa

 

Tempers Most Commonly Used
Flat Products
STRIP, ROLLED H01, H02, H04, H06, H08, H10, O50, OS025, OS035, OS050

 
Other
PIPE H55, H80, O60
TUBE H55, OS025
WIRE H10

 

Typical Uses

Electrical
Resistance Wire, Communication Relays, Springs, Resistors
Industrial
Evaporators, Condensers, Condenser Plates, Heat Exchanger Tubes, Ferrules, Evaporator Tubing

* Main Source : CDA(copper development association)