Regular Grade OFHC CDA 102
99.95 Cu | 20 Relative Machinability | "S" Weight Factor - 12.18
Physical Properties:
| Composition (Percent) | Copper (incl. Silver) 99.95 |
| Nearest Applicable ASTM Specifications | B68, B75, B88, B111, B188, B280, B359, B372, B395, B447, B640, B641 |
| 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 | 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: bus bars and bus conductors, and other electrical conductors, wave guides, copper to glass seals in electronic appliances.
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.
