Materials Selection for Process Plants |
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Page 243
elevated temperatures promotes softening of the rubber , loss of tensile value ,
and cracking at stressed points . Natural rubber readily supports combustion .
The electrical resistance qualities are considered good ; conductive rubbers are ...
elevated temperatures promotes softening of the rubber , loss of tensile value ,
and cracking at stressed points . Natural rubber readily supports combustion .
The electrical resistance qualities are considered good ; conductive rubbers are ...
Page 244
TABLE 19 . 2 . TYPICAL PROPERTIES OF HARD RUBBER psi % 4 , 000 – 10 ,
000 1 - 5 . 5 65 - 95 Shore D Tensile strength Elongation Hardness Service
temperatures a . Intermittent b . Continuous c . Minimum Specific gravity 270 220
35 1 .
TABLE 19 . 2 . TYPICAL PROPERTIES OF HARD RUBBER psi % 4 , 000 – 10 ,
000 1 - 5 . 5 65 - 95 Shore D Tensile strength Elongation Hardness Service
temperatures a . Intermittent b . Continuous c . Minimum Specific gravity 270 220
35 1 .
Page 246
Styrene Rubber ( SBR ) During World War II , styrene rubbers were developed as
general purpose rubbers to replace natural rubber . They were called Buna S
and GR - S . The present terminology is SBR . These rubbers are copolymers of ...
Styrene Rubber ( SBR ) During World War II , styrene rubbers were developed as
general purpose rubbers to replace natural rubber . They were called Buna S
and GR - S . The present terminology is SBR . These rubbers are copolymers of ...
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abrasion acid addition alkalies alloys aluminum annealed anode applications atmospheres attack austenitic base brasses carbon carbon steel cast iron cause cements cent characteristics chemical resistance chloride cleaning coat combination common COMPANY compounds concentrations conductivity construction containing continuous cooling copper corrosion corrosion resistance cost cracking ductility effect electrical elevated Elongation environments equipment excellent exposure fabrication film given grades gray greater handled hardness heat heat-treatment improved increase industries lead limited lining lower machining material maximum mechanical properties metal method Monel natural nickel nitric normally occurs operating organic oxidizing paint performed physical pipe plastic prevent protection range readily recommended reducing removed rubber salts severe silicon sodium hypochlorite solutions solvents stainless steels stress structure suitable sulfuric acid superior surface Table temperature tensile strength thermal tion titanium Type Typical welding widely wrought zinc