Group: Precision Alliance
Catalog excerpts
Properties of Plastic Screws ●● The Abbreviations, Names, and Heat Resistance Precautions for Plastic Screws Temperature of Plastics Name Heat Resistance Temperature Polyphenylene Sulfide Abbreviation VESPEL* Hard Polyvinyl Chloride Polyvinylidene Fluoride Perfluoroalkoxy Alkane While these plastics screws comply with JIS and ISO standards, there are some areas irrelevant to these screws as their manufacturing methods differ from that of metal screws. ●● The values in the mechanical properties chart are reference values. ●● Use a torque driver or torque wrench when tightening. ●● Always carry out tests under performance conditions similar to actual conditions in advance. ●● The color of machine screws, bolts, nuts, and washers may differ by lot. ●● Physical Properties H-PVC) ( Tensile Strength Charpy Impact Strength Vicat softening point Specific Gravity Values in chart are for reference only. They are not guaranteed values. Physical Properties PEEK GF30) ( RENY is a registered trademark of Mitsubishi Engineering-Plastics Corporation. Selection Criteria for Plastic Screws Tensile Elongation Flexural strength Flexural Modulus *VESPEL is a registered trademark of DuPont. with performance conditions such as tightening torque. Measurement condition Unit Test Method Tensile Strength Charpy Impact Strength(with Notch) Tensile modulus The heat resistance temperatures in the chart are for the plastic material. The max. operating temperature of the product changes Heat Resistance Chemical Resistance RENY>PPS>PEEK GF30>VESPEL SCP-5000) ( >PEEK>VESPEL SP-1) ( >PC>POM>PVDF>H-PVC>PP>PFA>PTFE From tensile strength data VESPEL SCP-5000) ( >VESPEL SP-1) ( >PEEK・PEEK GF30・PTFE・PFA>PPS>PVDF>PC>RENY>POM>PP>H-PVC From heat resistance temperature Volume Resistivity From chemical resistance data PTFE>PFA>PVDF>PP>H-PVC・PEEK・PEEK GF30>PPS>PC>VESPEL SCP-5000) ( >VESPEL SP-1) ( >RENY>POM Water Absorption Glass Fiber Content Physical Properties VESPEL VESPEL PEEK SP-1 SCP-5000 Test Unit Method Tensile Strength Tensile Elongation Flexural Strength Flexural Modulus Izot Impact (with Notch) D256 Rockwell Hardness Values in chart are for reference only. They are not guaranteed values. Deflection Temp. D648 under Load (1.82 MPa) Flame Class Dielectric Constant (106 Hz) Dielectric Loss Tangent (106 Hz) Volume Resistivity (×1014 ) Dielectric Breakdown Strength Specific Gravity Values in chart are for reference only. They are not guaranteed values. The recommended torque is 50% of the value in the chart. The value differs depending on the head shape of the screw. See the product page for details. Values in chart are for reference only. They are
Open the catalog to page 1Chemical Resistance Chemical Name VESPEL PEEK・ PTFE SCP-5000 PEEK GF30 Phosphoric Acid Formic Acid Phosphoric Acid Citric Acid Chromic Acid Boric Acid Methyl Alcohol Calcium Hydroxide Sulfur Dioxide Ammonium Nitrate Sodium Nitrate Calcium Carbonate Calcium Chloride Magnesium Chloride
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