| Show Hard and Soft Salt Solders Solder Soldering operations are cl classified according to the composition of the alloy alloy al al- loy used as either soft soldering or hard soldering Solders of low meltIng melting melt melt- Ing points composed mainly of lead and tin In varying amounts are known as soft soft solders while those of high melting points composed of varying amounts of copper brass zinc silver er and gold are known as hard solders Th The soft solder commonly used Is made up of half lead and half hal tin and melts at a temperature o of degrees grecs Fahrenheit The more lead there theme Is In Inthis Inthis inthis this alloy the higher Is Its melting point and an alloy composed of one part tin and two parts lead melts ut at degrees Fahrenheit |
