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heat deflection temperature test

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Published: 15 May 2022
Fig. 49 Loading geometry for ASTM D648 heat-deflection temperature test More
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Published: 01 January 2000
Fig. 16 Apparatus used in test for heat deflection temperature under load (460 or 1820 kPa, or 65 or 265 psi) More
Image
Published: 15 May 2022
Fig. 14 Apparatus used in test for heat-deflection temperature under stress (460 or 1820 kPa, or 65 or 265 psi) More
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003256
EISBN: 978-1-62708-176-4
... of plastics include the short-term tensile test, the compressive strength test, the flexural strength test, and the heat deflection temperature test. The most commonly used tests for impact performance of plastics are the Izod notched-beam test, the Charpy notched-beam test, and the dart penetration test. Two...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002477
EISBN: 978-1-62708-194-8
... of heat resistance is the heat distortion temperature (HDT). For this test, bending specimen 127 by 12.7 mm (5 by 0.5 in.) with a thickness ranging from 3.2 to 12.7 mm (0.125 to 0.5 in.) is placed on supports 102 mm (4 in.) apart, and a load producing an outer fiber stress of 0.46 or 1.82 MPa (66 or 264...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002389
EISBN: 978-1-62708-193-1
... the compact specimen geometry. The test procedure involves heating precracked specimens to the prescribed test temperature and applying a constant load until significant crack extension or specimen failure occurs. During the test, the crack length and load-line deflection are constantly monitored with time...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003037
EISBN: 978-1-62708-200-6
..., in MIL-C-7438G for aluminum alloys, and in MIL-C-21275C for metallic, heat-resistant core materials. Honeycomb test methods Table 1 Honeycomb test methods Test MIL-STD-401B paragraph No. ASTM test method Density 5.1.1 C 271 Specific gravity 5.1.1 C 271 Water absorption 5.1.2...
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Published: 15 May 2022
Fig. 31 Heat-deflection temperature at 1.8 MPa (0.264 ksi) of thermoplastics according to thermomechanical testing; 5 °C/min (9 °F/min) in flexure. HDPE, high-density polyethylene; LDPE, low-density polyethylene; PC, polycarbonate; PVC, polyvinyl chloride. More
Book Chapter

By Loren Godfrey
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001019
EISBN: 978-1-62708-161-0
... and formulas are available to aid in the design of springs. electroplating elevated temperatures extension springs fatigue testing hot-wound springs mechanical properties residual stresses steel springs leaf spring STEEL SPRINGS are made in many types, shapes, and sizes, ranging from...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003007
EISBN: 978-1-62708-200-6
..., such as those requiring impact or other mechanical properties, as opposed to those requiring only electrical insulation. Heat Deflection Temperature Heat deflection temperature (also known as deflection temperature under load) is an often misused characteristic. In the standard ASTM test (D 648...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006928
EISBN: 978-1-62708-395-9
... of a material. Fig. 13 Example of tool for shear-strength testing of plastics Deflection Temperature under Load (ASTM D648, ISO 75-1, ISO 75-2) Another measure of plastic rigidity under load is the deflection temperature under load (DTUL) test, also known as the heat-deflection temperature (HDT...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003478
EISBN: 978-1-62708-195-5
... are tailored to produce a dense material with the required properties. The processes typically include fabricating some type of organic composite preform, heating that preform to high temperature to decompose the organic material to carbon (referred to as carbonization), and then infiltrating the composite...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005611
EISBN: 978-1-62708-174-0
... on the applications of high-frequency multibeam processes, namely, selective surface treatment, multiple-pool welding, and pre- and post-heat treating. computer-aided design dynamic beam deflection electron beam electron beam direct manufacturing system high-frequency multibeam process multiple-pool...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005817
EISBN: 978-1-62708-165-8
... Abstract Electron beam hardening (EBH), with some special characteristics in comparison to other heat treatment technologies, allows beam deflection frequencies of up to 100 kHz. This article illustrates the principles of different thermal electron beam technologies, including beam-deflection...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006923
EISBN: 978-1-62708-395-9
... temperatures. Typical thermal properties for various plastics are summarized in Tables 1 and 2 . Thermal properties of selected resins Table 1 Thermal properties of selected resins Thermoplastic resins Heat-deflection temperature at 1.82 MPa (0.264 ksi) UL index (a) Thermal conductivity...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003023
EISBN: 978-1-62708-200-6
... 200 390 0.17 30 Polysulfone (PSU) 174 345 140 285 0.26 0.15 31 Styrene-maleic anhydride (S/MA) terpolymer 103 215 80 175 … … … Thermoset resins (neat) Heat deflection temperature at 1.82 MPa (0.264 ksi) Continuous service temperature Thermal conductivity...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003974
EISBN: 978-1-62708-185-6
... or volume, (c) the die temperature, (d) the amount of heat generated by deformation and friction, and (e) the contact time under pressure t p . The velocity of the slide under pressure V p determines mainly t p and the deformation rate ε ¯ ˙ . The number of strokes per minute under...
Book Chapter

By Eugene Shapiro
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003268
EISBN: 978-1-62708-176-4
... specifies a bend test to determine the modulus of elasticity in bending. Japanese Industrial Standard JIS 3130 specifies two tests to determine the elastic limit of spring plate or strip: the repeated deflection spring test and the moment type spring test. bend testing ductility strength specimen...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003008
EISBN: 978-1-62708-200-6
... classified as grade 8 differ from one another in flow and heat-deflection temperatures. Physical properties of various unmodified polymethyl methacrylate Table 3 Physical properties of various unmodified polymethyl methacrylate Property Flow grade (a) Test method Grade 5 Grade 6 Grade 8...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006909
EISBN: 978-1-62708-395-9
... temperature at which the material can support a load for any appreciable time). The HDT (or temperature of deflection) tests detect the onset of excessive deformation as a function of increasing temperature. ISO 75-1, 2, and 3 and ASTM D648 specify test procedures for determining the HDT of plastic materials...