itself possesses the valuable properties of high electrical conductivity, high thermal conductivity, reasonable strength, great maUeabUity, and an excellent resistance to the corrosive action of the atmosphere, sea water, and many chemical media.Copper can be alloyed readUy Avith many other metals and in commercial practice such alloying is resorted to extensively where it is desired to improve certain of the basic properties of copper itself and where such an improvement can be effected with the sacrifice only of such other properties as are of limited significance in the application intended.Although many variations in properties are obtained through a control of alloy constituents, there are further controllable variations that are introduced in each case by the method of fabrication.It is necessary that the engineer or technician in contemplating the use of copper-base alloys or in specifying the properties of a specific alloy for a given use be fully aware of the limitations to which the specific aUoy is subject as well as of the interrelationship that exists between properties.It is equally essential that the fabricator have data at hand by which to establish alloying, working, and annealing schedules directed toward the production of material to meet a particular specification. Commercial Bronze, Red Brass, Low Brass, Spring Brass, Spinning Brass, 70-30 Brass, Deep-drawing Brass, Common High Brass, Common Brass, and Muntz Metal. CHAPTER III The Leaded Brasses 89 Physical and Mechanical Properties of Hardware Bronze, • Lancashire Brass, Leaded High Brass, Brass Rod (Leaded), Heavy Leaded Sheet, Engraver's Brass, Riveting and Turning Rod, Free-cutting Brass Rod, Low-leaded Brass Rod, Deep-drilling Rod, Forging Rod, Extruded Shapes Rod, Architectural Bronze, and Red Brass. CHAPTER IV The Tin Brasses 132 Physical and Mechanical Properties of Bearing Bronze, Chain Bronze, Pen Metal, Admiralty Metal, Tobin Bronze, Government Naval Brass, Hard Naval Brass, Low-leaded Naval Brass, Medium-leaded Naval Brass, High-leaded Naval Brass, Manganese Bronze, and Modified Manganese Bronze.