Certified OFHC Copper CDA 101

99.99 Cu | 20 Relative Machinability | "S" Weight Factor - 12.18

Physical Properties:

Composition (Percent) Copper (incl. Silver) 99.99 Min. Phosphorus .0003 Max. Tellurium .0010 Max.
Nearest Applicable ASTM Specifications B68, B75, B188, B280, B372, B447, B641, F68
Melting Point (Liquidus) 1981 F
Density .323 lb / cu in. @ 68 F
Specific Gravity 8.94
Cold Working Capacity Excellent
Hot Forming Capacity Excellent
Hot Forgeability Rating 65 (Forging Brass = 100)
Hot Working Temperature 1400 - 1600 F or 750 - 875 C
Annealing Temperature 700 - 1200 F or 375 - 650 C
Machinability Rating 20 (Free Cutting Brass = 100)

Mechanical Properties for 1.00 OD x .065 Wall Tubing:

Temper Tensile Strength Yield Strength * Elongation in 2 in. Rockwell Hardness (F) Rockwell Hardness (B) Rockwell Hardness (30T) Shear Strength
.050 mm 32.0 ksi 10.0 ksi 45 % 40 --- --- 22.0 ksi
.025 mm 34.0 ksi 11.0 ksi 45 % 45 --- --- 23.0 ksi
Light Drawn 40.0 ksi 32.0 ksi 25 ksi 77 35 45 26.0 ksi
Hard Drawn 55.0 ksi 50.0 ksi 8 % 95 60 63 29.0 ksi

* (.5% Ext. under Load)

Drawn - General Purpose (H58)Temper is used for general purpose tube only, usually where there is no real requirement for high strength or hardness on the one hand or for bending qualities on the other.

Hard Drawn (H80)Temper is used only where there is need for a tube as hard or as strong as is commercially feasible for the size in question.

Light Drawn - Bending (H55)Temper is used only where a tube of some stiffness, but yet capable of readily being bent (or otherwise moderately cold worked) is needed.

Typical Uses: Electrical and Electronic; bus bars, bus conductors and other conductors, wave guides, hollow conductors, lead-in wires and anodes for vacuum tubes, vacuum seals, transistor components, glass to metal seal, coaxial cable and coaxial tubes, klystrons, micro-wave tubes, automotive rectifiers.

Skin Hard: Unique temper produced on an annealed tube during cross rolled straightening. The rigid out surface promotes easy handling but sort internal structure allows for easy expansion of the tube.

NOTE: The values listed above represent reasonable approximations suitable for general engineering use. They should not be used for specification purposed. See applicable A.S.T.M specification references.

Special arrangement can be made to provide alloys not shown.