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C17540 CW103C Wrought HIGH COPPER ALLOYS High Copper Alloys true false https://api.copper.org/alloys.xhtml/C17540
Chemical Composition
Elements
Cu(1,2) Fe Ni Be Co Si
(1) Cu value includes Ag.
(2) Cu + Sum of Named Elements 99.5% min.
Min (%) 0.8 0.4 0.8
Max (%) Rem 0.2 1.3 0.7 1.3 0.2
Mechanical Properties *
Form Temper Temper Code Tensile Strength
(ksi)		 Elongation
(%)		 Rockwell B scale
* Measured at room temperature, 68°F (20°C).
Forgings Hard and Precipitation Heat Treated TH04 100 Min
120 Typ
140 Max
 10 Min
14 Max		 95 Min
Precipitation Hardened TF00 100 Min
120 Typ
140 Max
 10 Min
14 Max		 95 Min
Solution Heat Treated TB00 100 Min
120 Typ
140 Max
 10 Min
14 Max		 95 Min
Sheet, Strip, Roller Bar & Plate Hard and Precipitation Heat Treated TH04 100 Min
140 Max
 10 Min
14 Max		 95 Min
Precipitation Hardened TF00 100 Min
120 Typ
140 Max
 10 Min
14 Max		 95 Min
Solution Heat Treated TB00 100 Min
120 Typ
140 Max
 10 Min
14 Max		 95 Min
Physical Properties
Melting Point - Liquidus°F 1975
Melting Point - Solidus°F 1880
Densitylb/cu in. at 68°F 0.318
Specific Gravity 8.81
Electrical Conductivity% IACS at 68°F 45
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F 135
Coefficient of Thermal Expansion 68-57210 to -6 power per °F (68 – 572°F) 9.8
Modulus of Elasticity in Tensionksi 19600
Magnetic Permeability 1
Poisson's Ratio 0.3
Fabrication Properties
Technique Suitability
Soldering Good
Brazing Good
Oxyacetylene Welding Not Recommended
Gas Shielded Arc Welding Fair
Coated Metal Arc Welding Fair
Spot Weld Good
Seam Weld Good
Butt Weld Good
Capacity for Being Cold Worked Excellent
Capacity for Being Hot Formed Good
Common Fabrication Processes

No fabrication process properties for this alloy

Thermal Properties

No thermal properties for this alloy

Typical uses
Product Category Product Reason Category Reason
Electrical Welding and Brazing Components Conductivity (Electrical) Electrical Conductivity, High
Industrial Plunger tips, die casting
Applicable Specifications

No applicable specifications for this alloy

Corrosion Properties

No Corrosion Properties Available.