COMMON MATERIAL PROPERTIES AND SELECTION

Materials & Manufacturing

materials comprise specific properties that can be selected for specific applications

INTRODUCTION

To match different material properties to an application, this Precision Point sheet can be used. After selection, this sheet can also be used for the mechanical properties of these materials.

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Selection
CategoryFunction / usage / property / comment(s)Material / Material code
AluminiumConstruction / ‘standard usage’ / non-magnetic / 6062-T6 is preferredEN-AW 6082-T6; 6061-T6
Construction / strong(er) / hardenable / copper in ally; corrosionEN-AW 7075-T6
Stainless SteelConstruction / ‘standard usage’ / non-magneticAISI 316; 1.4401
Construction / ‘standard usage’ / possibly magneticISI 304; 1.4301 (AISI 304L; 1.4306)
Normal springs / slightly magneticAISI 301; 1.4310
Construction / harder / magneticAISI 420; 12083
Non-magnetic: austenitic-pure / austenitic-annealed | Magnetic:feritic / cold deformed austeniticAustenitic AISI 300 series,Feritic AISI 400 series
Other MetalsConstruction-springs / large hardness - strongerStavax
Thermically dimension stable Invar
Construction / hard - very stiff / difficult to machine, http://www.plansee.com/en/Materials-Tungsten-403.htmTungsten (-carbide)
Construction / very strong-stiff-hard / very low-magnetic / treatments neccesary = expensiveInconel
Electrical - thermical conductor / soft / hard to machineCopper
Electrical - thermical conductor / good machining / grinding = toxicBeryllium Copper
Construction / antimagnetic / stiff / low thermical expansionTitanium
Low thermal expansion/ high thermal conductivityMolybdenum
Ceramic‘Standard usage’ / very strong / high temperture resistantAluminium Oxide
Thermal conductor / wear resistantSilicon Carbide
Construction / good to machineMacor
Ceramics are (very often) electrical and thermal insulators
GlassNo thermal expansion / no transmissive optics / extremely hard to machineZerodur
Low thermal expansion / good UV transmissionFused Silica
Transmissive optics / high thermal expansion / machinable / no load capacityN-BK7
ThermoplasticStrong - hard - tough / impact resistantPA-6.6 (Nylon)
Construction ‘technical plastic’ / dimensional stable PEEK
Construction / ‘standard usage’/ large thermal expansion / strong – stiff /POM (Delrin)
Excellent chemical resistance / strong - toughPP
Low friction (to metal) / small loads / use in vacuum (low outgassing) / non-glueable / UV resistantPTFE (Teflon)
Properties
Material

E [GPa]

ρ [kg/m3]σ0.2% [MPa]σmax [MPa]σfatigue [MPa]α [μm/m.K]C [J/kg.K]λ [W/m.K]
Aluminum 6082-T6

70

280026031070 ***23.2894237
Aluminum 7075-T6

70

2800460540160 ***23.6862130
Aluminum oxide

310 - 400

380035235288x7.2 - 8.288016 - 31
Brass (Messing)

110

870025043062x21380122
Copper

117

89005523018x16.8385390
Diamond

1200

350016002800533x1.3508165
Glue (Araldite 2030)

2

105020206x50-0.22
Granite

65 - 85

2700707023x7.48002.9 - 3.5
Inconel 718 (Annealed and aged)

214

820012001400225 ***13.243511.1
Invar

145

8100300450100x150016
Macor

66.9

2520949431x7.47901.46
Magnesium

45

180090 - 190165 - 30030x25.61000150
Molybdenum (Alloy 362)

320

10200825895275x5.2254142
N-BK7

81

2510707023x7.18581.1
Nickel

196

88805931719x12.746092
PA-6.6 (Nylon)

1.8

1130555518x8517000.2
PEEK

3.7

1300909030x4522000.25
Phosphor bronze

117

889076276114 ***17.8380208
POM Polyoxymethylene (Delrin)

4.5

1420656521x12031000.29
PP Polypropylene

1.4

900202011 - 16.6 **18018700.15
PTFE Polytetrafluorethene (Teflon)

0.5

21702331.57x1314000.124
Quartz (Crystal-)

80

2300727224x1071010
Silicon

130

232919519565x2.6713115
Silicon carbide

410

3200200 - 500390 - 100066x4.6670110
Silicon nitride

300

3260350 - 1000350116x3.270035
Stavax

210

775012901780430x10.546020
Steel (-carbon)

210

7850300550207 - 380 **1247052
Steel (-spring)

210

7800669550223x1650016
Steel (-stainless)

210

7900200 - 440450 - 880200 *1745016
Ti 6Al 4V (grade5)

114

4430880950510 **9.05806.6
Titanium (grade 2)

110

4600340430280 **8.750016.4
Tungsten

411

19400800 - 1250990 - 1640266x4.5134173
Tungsten carbide

650

15600600344200x5.821084
Zerodur

91

2530909030x0.058211.64

*1x10^6 repetitions. ** 1x10^7 repetitions. *** 5x10^8 repetitions. ^x\sigma _{0.2%} / 3.

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