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Beryllium Copper Wire supplied Bare as well as Tinned and Silver coated

ASTM B197

This is an age harden able copper alloy that can be used in many automotive and aerospace applications as well as the electronics industry.  The wire is also available as tinned coated or silver coated depending upon the application of the wire.

Chemical Requirements: (Composition, %)

copper alloy uns# copper beryllium aluminum max silicon max nickel + cobalt max nickel + cobalt + iron, max lead
C17200 Remainder* 1.80-2.00 0.20 0.20 0.20 0.6
C17300 Remainder* 1.80-2.00 0.20 0.20 0.20 0.06 0.20-0.60

*Taken by difference.

Tensile Strength Requirements for Round, Hexagonal, Octagonal and Square Wire After Precipitation Heat Treatment

Standard Temper Designation Tensile Strength ksi*
TF00 Precipitation hardened (AT) 160-200
TH01 ¼ hard and precipitation heat treated (1/4 HT) 175-210
TH02 ½ hard and precipitation heat treated (1/2 HT) 185-215
TH03 ¾ hard and precipitation heat treated (3/4 HT) 190-230
TH04 Hard and precipitation heat treated (HT) 195-230

*These values apply to mill products.
TH03 (3/4 HT) condition is generally available up to 0.080 inches, inclusive, in diameter or distance between parallel surfaces.

 

Tensile Strength Requirements for Round, Hexagonal, Octagonal and Square Wire After Mill Hardening (Pretempered TL08 – Former Designation XHT)

Diameter or Distance Between Parallel Surfaces, inches Tensile Strength KSI, minimum
Over 0.050 to 0.075, excluded 140-165
Over 0.075 to 0.100, excluded 120-140
Over 0.100 to 0.114, included 115-130

Tensile Strength Requirements for Round, Hexagonal, Octagonal and Square Wire

Standard Temper Designation Tensile Strength KSI
TB00 Solution Heat treated (Annealed)(A) 58-78
TD01 Quarter-hard (1/4 H) 90-115
TD02 Half-hard (1/2 H) 110-135
TD03 Three-quarter hard (3/4 H) 130-155
TD04 Hard (H) 140-165

TD03 (3/4 HT) condition is generally available up to 0.080 inches, inclusive, in diameter or distance between parallel surfaces.

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