443

Physical Properties:

Composition (Percent)	Copper 70 Min 73 Max, Lead .07 Max, Iron .06 Max, Tin 1.2 max, AS .06 max, Sb or P .10 max.
Nearest Applicable ASTM Specifications	B111, B359, B395
Melting Point (Liquidus)	1720 F
Density	.308 lb / cu in. @ 68 F
Specific Gravity	8.53
Cold Working Capacity	Excellent
Hot Forming Capacity	Fair
Hot Forgeability Rating	n/a (Forging Brass = 100)
Hot Working Temperature	1200 - 1450 F or 650 - 800 C
Annealing Temperature	800 - 1100 F or 425 - 600 C
Machinability Rating	30 (Free Cutting Brass = 100)


	Mechanical Properties for 1.00 OD x .065 Wall Tubing:

Temper	Tensile Strengt h	Yeild Strength*	Elongation in 2 in.	Rockwell Hardness (F)	Rockwell Hardness (B)	Rockwell Hardness (30T)	Shear Strength
.025 mm	53.0 ksi	22.0 ksi	65 %	75	---	37	---


	* (.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: Condenser, evaporator and heat exchanger tubes, distiller tubes, ferrules..

	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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