102

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 Strengt h	Yeild Strength *	Elongatio n 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.

	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.

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