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니켈동(백동, Cupro Nickel,Cu-Ni)
CDA/UNS C72500


Chemical Composition
(%max., unless shown as range or min.)
  Cu(1) Fe Pb Mn Ni(2) Sn Zn
Min./Max. Rem. .6 .05 .20 8.5-10.5 1.8-2.8 .50
(1) Cu value includes Ag.
(2) Ni vlaue includes Co.
Note: Cu + Sum of Named Elements, 99.8% min.

Applicable Specifications

Product Specification
Bar ASTM B122
Plate ASTM B122
Sheet ASTM B122
Strip ASTM B122

 

Common Fabrication Processes
Blanking, Brazing, Coining, Drawing, Etching, Forming and Bending, Heading and Upsetting, Roll Threading and Knurling, Shearing, Spinning, Squeezing and Swaging, Stamping and Swaging

Fabrication Properties

Joining Technique Suitability
Soldering Excellent
Brazing Excellent
Oxyacetylene Welding Fair
Gas Shielded Arc Welding Good
Coated Metal Arc Welding Good
Spot Weld Excellent
Seam Weld Good
Butt Weld Excellent
Capacity for Being Cold Worked Excellent
Capacity for Being Hot Formed Excellent
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
Wire
H01 0.08 20 TYP 68 80 - - - - - - - - - - - - - 0.0
  2     20 552 - - - - - - - - - - - - - 0.0
H02 0.08 45 TYP 68 90 - - - - - - - - - - - - - 0.0
  2     20 621 - - - - - - - - - - - - - 0.0
H06 0.08 75 TYP 68 100 - - - - - - - - - - - - - 0.0
  2     20 689 - - - - - - - - - - - - - 0.0
H10 0.08 90 TYP 68 110 - - - - - - - - - - - - - 0.0
  2     20 758 - - - - - - - - - - - - - 0.0
H14 0.08 99 TYP 68 120 - - - - - - - - - - - - - 0.0
  2     20 827 - - - - - - - - - - - - - 0.0
OS015 0.08 0 TYP 68 60 25 - - - - - - - - - - - - 0.0
  2     20 414 172 - - - - - - - - - - - - 0.0
Flat Products
H00 0.04 0 TYP 68 58 - 43 - 29 65 - - 60 - - - - - 0.0
  1     20 400 - 296 - 29 65 - - 60 - - - - - 0.0
H01 0.04 0 TYP 68 65 53 58 - 18 71 - - - - - - - - 0.0
  1     20 448 365 400 - 18 71 - - - - - - - - 0.0
H02 0.04 0 TYP 68 71 65 69 - 6 78 - - - - - - - - 0.0
  1     20 490 448 476 - 6 78 - - - - - - - - 0.0
H03 0.04 0 TYP 68 77 - 75 - 5 81 - - - - - - - - 0.0
  1     20 531 - 517 - 5 81 - - - - - - - - 0.0
H04 0.04 0 TYP 68 83 75 81 - 3 85 - - - - - - - - 0.0
  1     20 572 517 558 - 3 85 - - - - - - - - 0.0
H06 0.04 0 TYP 68 87 81 86 - 2 88 - - - - - - - - 0.0
  1     20 600 558 593 - 2 88 - - - - - - - - 0.0
H08 0.04 0 TYP 68 91 83 90 - 1 90 - - - - - - - - 0.0
  1     20 627 572 621 - 1 90 - - - - - - - - 0.0
H14 0.04 0 TYP 68 112 83 108 - 1 99 - - - - - - - - 0.0
  1     20 772 572 745 - 1 99 - - - - - - - - 0.0
OS015 0.04 0 TYP 68 55 22 22 - 35 42 - - 44 - - - - - 0.0
  1     20 379 152 152 - 35 42 - - 44 - - - - - 0.0
                                       
*Fatigue Strength: 100 x 10 6cycles, unless indicated as [N]X 106.

Physical Properties

  US Customary Metric
Melting Point - Liquidus 2065 F 1129 C
Melting Point - Solidus 1940 F 1060 C
Density 0.321 lb/in3 at 68 F 8.89 gm/cm3 @ 20 C
Specific Gravity 8.89 8.89
Electrical Resistivity 94.3 ohms-cmil/ft @ 68 F 15.68 microhm-cm @ 20 C
Electrical Conductivity 11 %IACS @ 68 F 0.064 MegaSiemens/cm @ 20 C
Thermal Conductivity 31.0 Btu · ft/(hr · ft2·oF)at 68F 53.7 W/m · oK at 20 C
Coefficient of Thermal Expansion 9.2 ·10-6 per oF (68-572 F) 16.6 ·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
PLATE M20
SHEET H00, H01, H02, H03, H04, H06, H08, H10, OS015, OS025, OS035
STRIP, ROLLED H00, H01, H02, H03, H04, H06, H08, H10, OS015, OS025, OS035, OTHER
WIRE, ROLLED H10, OS015, OS025, OS035, OTHER

 
Other
ROD H04, OS015, OS025, OS035
TUBE H55, OS015, OS025, OTHER
WIRE H04, H06, H08, H10, OS015, OS025, OS035

 

Typical Uses

Electrical
Electronic Contacts, Telecommunications Connectors, Relays, Switch Springs, Connectors, Lead Frames, Control and Sensing Bellows
Industrial
Brazing Alloy

* Main Source : CDA(copper development association)