Materials Selection for Process Plants |
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Page 48
Phosphorus improves hardness and strength , but decreases ductility and
toughness ; it enhances resistance to atmospheric corrosion and promotes
machinability . Sulfur is very detrimental to surface quality , as it has a great
tendency to ...
Phosphorus improves hardness and strength , but decreases ductility and
toughness ; it enhances resistance to atmospheric corrosion and promotes
machinability . Sulfur is very detrimental to surface quality , as it has a great
tendency to ...
Page 58
The most economical hardness for machinability is around 250 Bhn . As the
hardness increases , however , the machinability decreases ; thus , the lower -
tensile gray irons are much more machinable than those of higher - tensile .
There is a ...
The most economical hardness for machinability is around 250 Bhn . As the
hardness increases , however , the machinability decreases ; thus , the lower -
tensile gray irons are much more machinable than those of higher - tensile .
There is a ...
Page 62
The carbon content is critical ; an increase in carbon increases the hardness . At
about 3 . 5 per cent carbon , the hardness is greater than 500 Bhn . The other
mechanical properties are quite different from those of gray iron . White iron has a
...
The carbon content is critical ; an increase in carbon increases the hardness . At
about 3 . 5 per cent carbon , the hardness is greater than 500 Bhn . The other
mechanical properties are quite different from those of gray iron . White iron has a
...
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