Wikidata:WikiProject Materials/Properties

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This tab list the propreties that are usefull for materials. Feel free to add to this list.

A dedicated List of properties with sources Lua template that includes sources has been created on the subpage : Wikidata:WikiProject Materials/Properties/Properties list table model

Classification[edit]

property does not exist. Use "id=new" if it's to be created.

Title		 ID Data type Description Described by Examples Inverse
classP2308Itemclass: qualifier to define a property constraint in combination with "property constraint" (P2302) → Property talk:P2308-
subclass ofP279Itemsubclass of: this item is a subclass (subset) of that item; all instances of this item are instances of that item; different from P31 (instance of), e.g.: K2 is an instance of mountain; volcano is a subclass of mountain (and an instance of volcanic landform)apple <subclass of> fruit-
instance ofP31Iteminstance of: that class of which this subject is a particular example and member; different from P279 (subclass of); for example: K2 is an instance of mountain; volcano is a subclass of mountain (and an instance of volcanic landform)Nelson Mandela <instance of> human-
relationP2309Itemrelation and relation: qualifier to define a property constraint in combination with P2302. Possibly values are: "instance of", "subclass of" or "instance or subclass of". The qualifier to use with the property "relative" is "type of kinship" (P1039), not this → Property talk:P2309-
nameP2561Monolingual textname, full name and musical group name: name the subject is known by. If a more specific property is available, use that Giuseppe Garibaldi <name> Giuseppe Garibaldi and volcanic explosivity index <name> volcanic explosivity index-
has useP366Itemuse: main use of the subject (includes current and former usage)book <has use> reading-
related propertyP1659Propertyrelated property: used to indicate another property that might provide additional information about the subjectwebsite account on <related property> Twitter (X) username and Facebook username-
different fromP1889Itemdifferent from: item that is different from another item, with which it may be confused Kowalski <different from> Kowalskidifferent from
exact matchP2888URLexact match: URL used to link two items or properties, indicating a high degree of confidence that the concepts can be used interchangeablyasthma <exact match> http://purl.obolibrary.org/obo/DOID_2841-
replacesP1365Itemreplaced entity: person, state or item replaced. Use "structure replaces" (P1398) for structures. Use "follows" (P155) if the previous item was not replaced or predecessor and successor are identicalBarack Obama <replaces> George W. Bushreplaced by
replaced byP1366Itemreplacing entity: other person or item which continues the item by replacing it in its role. Use P156 ("followed by") if the item is not replaced nor identical, but adds to the series (e.g. books in a series).Ptolemy XII Auletes <replaced by> Cleopatrareplaces
named afterP138Itemeponym, memorial society and namesakes: entity or event that inspired the subject's name, or namesake (in at least one language). Qualifier "applies to name" (P5168) can be used to indicate which one Camembert <named after> Camembert-
microstructureP5589Itemmicrostructure: very small scale structure of a material, defined as the structure of a prepared surface of material as revealed by a microscope above 25× magnification duplex stainless steel <microstructure> austenite-
test1new  create, proposalQuantityEarth → Q3
-

Commercial[edit]

Title		 ID Data type Description Described by Examples Inverse
priceP2284Quantityprice: published price listed or paid for a product (use with unit of currency) Warfarin sodium 1 mg tab-cap <price> 1.18 United States dollar-
manufacturerP176Itemmanufacturer: (main or final) manufacturer or producer of this productAirbus A320 family <manufacturer> Airbusproduct or material produced or service provided
described by sourceP1343Itemsource of information: work where this item is describedVladimir K. Zworykin <described by source> Brockhaus Enzyklopädie (19 ed.)-
described at URLP973URLInternet research: item is described at the following URL Mona Lisa <described at URL> http://musee.louvre.fr/oal/joconde/indexFR.html-
has characteristicP1552Itemquality: inherent or distinguishing quality or feature of the entity. Use a more specific property when possible. human <has characteristic> gender-
side effectP1909Itemside effect and adverse drug reaction: effect of a medication or procedure, that occurs next to the desired effect influenza vaccine <side effect> sore throat-
industryP452Itemindustry and economic sector: specific industry of company or organization Red Hat <industry> software industry-

Physics[edit]

Title		 ID Data type Description Described by Examples Inverse
densityP2054Quantitydensity: density of a substance with phase of matter and temperature as qualifiers acetophenone <density> 1.0281 gram per cubic centimetre-
crystal systemP556Itemcrystal system: type of crystal for minerals and/or for crystal compounds sodium chloride <crystal system> cubic crystal system-

Mechanical[edit]

Title		 ID Data type Description Described by Examples Inverse
tensile modulus of elasticityP5480QuantityYoung's modulus: material proprety linking the elastic deformation to the yield strengh. SAE 316L stainless steel <tensile modulus of elasticity> 200 gigapascal-
ultimate tensile strengthP5479Quantityultimate tensile strength: material property measuring the tensil strengh at break glass fiber <ultimate tensile strength> 360 megapascal-
yield strengthP5529Quantityelastic limit: material proprety measuring the stress above which materials begin to permanently deform A36 steel <yield strength> 250 megapascal-
hardnessP5483Quantityhardness: measure of how resistant solid matter is to various kinds of permanent shape change when a force is applied → Property talk:P5483-
kinematic viscosityP2118Quantitykinematic viscosity: viscosity of a substance, with phase of matter (P515) and temperature (P2076) as qualifiersmethanol <kinematic viscosity> 0.0084 stokes-
dynamic viscosityP3070Quantitydynamic viscosity: viscosity of a substance, with phase of matter (P515) and temperature (P2076) as qualifiersacetic acid <dynamic viscosity> 1.056 millipascal second-
toughnessP5520Quantitytoughness: material property measuring the ability of a material to absorb energy and plastically deform without fracturing SAE 316L stainless steel <toughness> 325 joule-
Poisson's ratioP5593QuantityPoisson's ratio: the negative of the ratio of (signed) transverse strain to (signed) axial strain copper <Poisson's ratio> 0.33-
coefficient of frictionP5575Quantitycoefficient of friction: dimensionless scalar value which describes the ratio of the force of friction between two bodies and the force pressing them togetheraluminium <coefficient of friction> 0.61-
speed of soundP2075Quantityspeed of sound: speed of sound waves in a material. Use qualifiers to specify the measurement conditions. methanol <speed of sound> 1,123 metre per second-
fatigue limitP5608Quantityfatigue limit: amplitude (or range) of cyclic stress that can be applied to the material without causing fatigue failure SAE 316L stainless steel <fatigue limit> 290 megapascal-
compressive strengthP5669Quantitycompressive strength: capacity of a material or structure to withstand loads tending to reduce size concrete <compressive strength> 30 megapascal-
bulk modulusP5668Quantitybulk modulus: measure of how resistant to compressibility that substance is diamond <bulk modulus> 443 gigapascal-
flexural modulusP5681Quantityflexural modulus: ratio of stress to strain in flexural deformation polyamid 66 - 30% glass fiber reinforced <flexural modulus> 9.5 gigapascal-
flexural strengthP5677Quantityflexural modulus: the stress in a material just before it yields in a flexure test polyamid 66 - 30% glass fiber reinforced <flexural strength> 275 megapascal-
shear modulusP5673Quantityshear modulus: ratio of shear stress to the shear strain diamond <shear modulus> 478 gigapascal-
tear resistanceP5685Quantityshear strength: measure of how well a material can withstand the effects of tearing → Property talk:P5685-
abrasion resistanceP5709Quantityabrasion and corrosion: resistance to the process of scuffing, scratching, wearing down, marring, or rubbing away PurePolycarbonate® Abrasion Resistant Grades <abrasion resistance> 35 percent-
forceP5708Quantityforce: quantitative value of the interaction between two objects → Property talk:P5708-
shear strengthP5706Quantityshear strength: strength of a material or component against the type of yield or structural failure when the material or component fails in shear → Property talk:P5706-
elongation at breakP5811Quantityelongation at break: material property; the ratio between changed length and initial length after breakage of the test specimen. It expresses the capability of a material to resist changes of shape without crack formation.SAE 316L stainless steel <elongation at break> 55 percent-
compressive modulus of elasticityP5993QuantityYoung's modulus: the ratio of mechanical stress to strain in an elastic material when that material is being compressed 6061 aluminium alloy <compressive modulus of elasticity> 60 gigapascal-
flexural strain at breakP6014Quantityflexural strain at break: the strain of material specimen after break in a flexural test polycarbonate <flexural strain at break> 4 percent-


Multidirectional mechanical properties[edit]

Type at break at yied
Tensile
Flexural
Shear
Linear compression
  • Compression strengh at break : compressive strength (P5669)
  • Compression strain at break (longitudinal) :
  • Compression strain at break (transversal) :
Isostatic pressing
  • Isostatic pressure at break :
  • Isostatic pressing strain at break :
  • Isostatic pressing modulus : bulk modulus (P5668)
  • Isostatic pressure at yield :
  • Isostatic pressing strain at yield :

Heat treating[edit]

See : Wikidata:Requests for comment/How to handle heat treating as a qualifier for material properties ?

Title		 ID Data type Description Described by Examples Inverse
heat treatingP6212Itemheat treatment: Industrial and metalworking processes used to alter the physical, and sometimes chemical, properties of a material. → Property talk:P6212-
Heat treating curvenew  create, proposalCommons media fileTime/Temperature curve describing the heat treating-
Cooling innew  create, proposalItemWater, Oil, Air...-
Cooling ratenew  create, proposalQuantity°C/s-
Quenching athmospherenew  create, proposalItemVaccum, Nitrogen, Neutral gaz...-
Quenching temperaturenew  create, proposalQuantityGenerally around 800~1100°C for steels-
Quenching durationnew  create, proposalQuantityxxx-
Cryogenic treatment durationnew  create, proposalQuantitygenerally at least 1/2H for steels-
Cryogenic treatment temperaturenew  create, proposalQuantityxxx-
Tempering athmospherenew  create, proposalItemxxx-
Tempering temperaturenew  create, proposalQuantityxxx-
Tempering durationnew  create, proposalQuantityxxx-
Annealing athmospherenew  create, proposalItemxxx-
Annealing temperaturenew  create, proposalQuantityxxx-
Annealing durationnew  create, proposalQuantityxxx-
Precipitation hardening athmospherenew  create, proposalItemxxx-
Precipitation hardening temperaturenew  create, proposalQuantityxxx-
Precipitation hardening durationnew  create, proposalItemxxx-
Temperature stepnew  create, proposalQuantityxxx-
Temperature step durationnew  create, proposalQuantityxxx-
Surface hardeningnew  create, proposalItemxxx-

Thermal[edit]

Title		 ID Data type Description Described by Examples Inverse
melting pointP2101Quantitymelting point: temperature at which a solid changes its state from solid to liquid at atmospheric pressure lead <melting point> 327.462 degree Celsius-
boiling pointP2102Quantityboiling point: temperature at which a substance changes its phase from liquid to gas (indicate the corresponding pressure as qualifier) benzene <boiling point> 80.08 degree Celsius-
thermal conductivityP2068Quantitythermal conductivity: property of a material that describes how efficiently heat is conducted gold <thermal conductivity> 318 watt per metre kelvin-
flash pointP2128Quantityflash point: lowest temperature at which it can vaporize to form an ignitable mixture in air. Add qualifier for measurement method (P459): open cup or closed cup. Not equal to fire point. undecane <flash point> 69 degree Celsius-
specific heat capacityP2056Quantityspecific heat capacity: specific heat capacity of a substance, with phase of matter and temperature as qualifiers gold <specific heat capacity> 129.1 joule per kilogram kelvin difference-
autoignition temperatureP2199Quantityautoignition temperature: lowest temperature at which it will spontaneously ignite in a normal atmosphere without an external source of ignition → Property talk:P2199-
sublimation temperatureP2113Quantitysublimation temperature: temperature at which a substance changes directly from solid to gaseous (indicate corresponding pressure qualifier)carbon dioxide <sublimation temperature> −78.5 degree Celsius-
operating temperatureP5066Quantityoperating temperature: temperature at which a device operates. Use qualifier "criterion used" (P1013) and values such as "maximum" (Q10578722), "minimum" (Q10585806), etc. iPhone <operating temperature> 36 degree Celsius-
emissivityP1295Quantityemissivity: ability of a substance to radiate thermal energy from its surface cement <emissivity> 0.54-
NFPA FireP994StringNFPA 704: NFPA rating for a chemical's flammability (red quadrant in fire diamond) dichlorine <NFPA Fire> 0-
linear thermal expansion coefficientP5672Quantitylinear expansion coefficient: measures the fractional change in size per degree change in temperature at a constant pressure aluminium <linear thermal expansion coefficient> 23-
glass transition temperatureP5670Quantityglass-transition temperature: transition in amorphous materials from a hard and relatively brittle "glassy" state into a viscous or rubbery state as the temperature is increased acrylonitrile butadiene styrene <glass transition temperature> 105 degree Celsius-
heat deflection temperatureP5682Quantityheat deflection temperature: temperature at which a polymer or plastic sample deforms under a specified load → Property talk:P5682-
thermal diffusivityP5674Quantitythermal diffusivity: measures the rate of transfer of heat of a material from the hot side to the cold side nylon <thermal diffusivity> 0.09 square millimetre per second-
Vicat softening pointP5947QuantityVicat softening point: the temperature at which the specimen is penetrated to a depth of 1 mm by a flat-ended needle with a 1 mm2 circular or square cross-section poly(methyl methacrylate) <Vicat softening point> 116 degree Celsius-

Chemical[edit]

Title		 ID Data type Description Described by Examples Inverse
solventP2178Itemsolvent: qualifier to show which substance is the solvent in a solution-process (use with P2177) → Property talk:P2178-
InChIP234External identifierInternational Chemical Identifier: International Chemical Identifier benzene <InChI> InChI=1S/C6H6/c1-2-4-6-5-3-1/h1-6H-
chemical structureP117Commons media filechemical structure and structural formula: image of a representation of the structure for a chemical compound methane <chemical structure> Methan Keilstrich.svg-
chemical formulaP274Stringchemical formula: description of chemical compound giving element symbols and counts water <chemical formula> H₂O-
has part(s)P527Itemhas part, consist of and meronymy: part of this subject; inverse property of "part of" (P361). See also "has parts of the class" (P2670).United States Congress <has part(s)> United States Senate and United States House of Representativespart of
part ofP361Itempart: object of which the subject is a part (if this subject is already part of object A which is a part of object B, then please only make the subject part of object A), inverse property of "has part" (P527, see also "has parts of the class" (P2670))ear <part of> headhas part(s)
upper limitP5448Quantityupper limit of a range or an interval; (qualifier) used with a dummy value which specifies the type of the range or intervalred blood cell count <upper limit> 5.55 trillion cells per litre-
lower limitP5447Quantitylower limit of a range or an interval; (qualifier) used with a dummy value which specifies the type of the range or intervalred blood cell count <lower limit> 4.35 trillion cells per litre-
proportionP1107Quantityproportion: to be used as a qualifier, value must be between 0 and 1mayonnaise <proportion> 0.7-
moisture absorptionP5594Quantitymoisture and absorption of water: quantity of moisture a material would absorb in given conditions nylon 6 <moisture absorption> 2.7 percent-
polymer ofP4600Itempolymer: monomer of which this polymer compose polyethylene <polymer of> ethylenemonomer of
monomer ofP4599Itemmonomer: polymer composed of this monomer subunits ethylene <monomer of> polyethylenepolymer of
permeabilityP6073Quantitypermeability: the penetration of a permeate (such as a liquid, gas, or vapor) through a solidsilicone <permeability> 600 Barrer-
pitting resistance equivalent numberP5624QuantityPitting Resistance Equivalent Number: predictive measurement of a stainless steels resistance to localized pitting corrosion SAE 304 stainless steel <pitting resistance equivalent number> 19-

Safety[edit]

Title		 ID Data type Description Described by Examples Inverse
UN numberP695External identifierfour-digit number that identify hazardous substances and articles in the framework of international transportsodium azide <UN number> 1687-
RTECS numberP657External identifierchemical identifier from the Registry of Toxic Effects of Chemical Substancesberyllium <RTECS number> DS1750000-
NFPA InstabilityP995StringNFPA 704: NFPA rating for chemical or physical reactivity (yellow quadrant in fire diamond) dichlorine <NFPA Instability> 0-
NFPA HealthP993StringNFPA 704: NFPA rating for a chemical's hazard to health (blue quadrant in fire diamond) dichlorine <NFPA Health> 4-
NFPA InstabilityP995StringNFPA 704: NFPA rating for chemical or physical reactivity (yellow quadrant in fire diamond) dichlorine <NFPA Instability> 0-
NFPA SpecialP877StringNFPA 704: NFPA code for a chemical's other hazards in white (bottom) quadrant dichlorine <NFPA Special> OX-
safety classification and labellingP4952Itemsafety classification: classification data for the identification and labelling of chemical risks associated with a productdichlorine <safety classification and labelling> NFPA 704: Standard System for the Identification of the Hazards of Materials for Emergency Response-
GHS hazard pictogramP5040ItemGHS hazard pictogram: qualifier for P4952 for GHS hazard pictograms carbachol <GHS hazard pictogram> GHS06: skull and crossbones-
GHS signal wordP1033ItemGHS signal word: please use with items "warning" (Q15350847) and "danger" (Q15221217)carbachol <GHS signal word> danger-
GHS hazard statementP5041ItemGHS hazard statement and supplemental GHS hazard statement (European Union): qualifier for P4952 for GHS H-statements (also EUH-statements, AUH-statements) carbachol <GHS hazard statement> H300-
GHS precautionary statementP5042ItemGHS precautionary statement: qualifier for P4952 for GHS P-statements carbachol <GHS precautionary statement> P264 and P301+P310-
limiting oxygen indexP5929Quantitylimiting oxygen index: the minimum concentration of oxygen, expressed as a percentage, that will support combustion of a polymer poly(methyl methacrylate) <limiting oxygen index> 17.3 percent-

Electric and Magnetic[edit]

Title		 ID Data type Description Described by Examples Inverse
electrical conductivityP2055Quantityelectrical conductivity: electrical conductivity of a substance with phase of matter and temperature as qualifiers gold <electrical conductivity> 45,500,000 ampere per volt metre-
electrical resistivityP5679Quantityelectrical resistivity: quantifies how strongly a given material opposes the flow of electric current drinking water <electrical resistivity> 20 ohm metre-
relative permittivityP5675Quantityrelative permittivity: measure of capacitance that is encountered when forming an electric field in a particular medium expressed as a ratio relative to the permittivity of vacuum vacuum <relative permittivity> 1-
relative permeabilityP5676Quantityrelative permeability: measure of the ability of a material to support the formation of a magnetic field within itself iron <relative permeability> 200,000-

Manufacturing[edit]

Title		 ID Data type Description Described by Examples Inverse
source of materialP2647Itemsource of material: place the material used was mined, quarried, found, or producedMells War Memorial <source of material> Doulting Stone Quarry-
fabrication methodP2079Itemlist of manufacturing processes, production, process and building method: method, process or technique used to grow, cook, weave, build, assemble, manufacture the item silk <fabrication method> sericulture-
made from materialP186Itemmaterial: material the subject or the object is made of or derived from (do not confuse with P10672 which is used for processes) chocolate <made from material> cocoa bean-

Optical properties[edit]

Title		 ID Data type Description Described by Examples Inverse
colorP462Itemcolor: color of subject charcoal <color> black-
refractive indexP1109Quantityrefractive index: refractive index of a substance with wavelength and temperature as qualifiers undecane <refractive index> 1.4164-

Several categories[edit]

Title		 ID Data type Description Described by Examples Inverse
attenuation coefficientP5992Quantityattenuation coefficient: Characterizes how easily a volume of a material can be penetrated by a beam of light, sound, particles, or other energy or matter. Beam type is to be secified using P1013. → Property talk:P5992-


Environement[edit]

Title		 ID Data type Description Described by Examples Inverse
water footprintP6000Quantitywater footprint: total volume of fresh water used to produce the goods and services consumed by the individual or community or produced by the business SAE 316L stainless steel <water footprint> 150 litre per kilogram-
recycling codeP5994Stringrecycling code: used to identify the material from which an item is made, to facilitate easier recycling or other reprocessing polyethylene terephthalate <recycling code> 01-
carbon footprintP5991Quantitycarbon footprint: total emissions caused by an individual, event, organisation, or product, expressed as carbon dioxide equivalent; has to be calculated via a scientificly proven methodology SAE 316L stainless steel <carbon footprint> 3.9 kilogram of carbon dioxide equivalent per kilogram-
embodied energyP6075Quantityembodied energy: sum of all the energy required to produce any goods or services, considered as if that energy was incorporated or 'embodied' in the product itself concrete <embodied energy> 1.11 megajoule per kilogram-
biobased content weight percentageP6076Quantitybiobased product: weight percentage of content coming from the biomass polylactic acid <biobased content weight percentage> 100 percent-

Visual appearance[edit]

Title		 ID Data type Description Described by Examples Inverse
imageP18Commons media fileillustration and image: image of relevant illustration of the subject; if available, also use more specific properties (sample: coat of arms image, locator map, flag image, signature image, logo image, collage image) Douglas Adams <image> Douglas adams portrait cropped.jpg-
Commons galleryP935StringCommons gallery: name of the Wikimedia Commons gallery page(s) related to this item (is suitable to allow multiple links to more gallery pages)Charles Square <Commons gallery> Karlovo náměstí (Prague)-
Commons categoryP373StringCommons category: name of the Wikimedia Commons category containing files related to this item (without the prefix "Category:")Calosoma reticulatum <Commons category> Calosoma reticulatum-
colorP462Itemcolor: color of subject charcoal <color> black-

Qualifiers[edit]

See Help:Qualifiers for more information on how using the Qualifiers.

invalid 'id' parameter should be a number or 'new', is P828 invalid 'id' parameter should be a number or 'new', is P1542

Title		 ID Data type Description Described by Examples Inverse
temperatureP2076Quantitytemperature: qualifier to indicate at what temperature something took place water <temperature> 4 degree Celsius-
under pressureP2077Quantitypressure: qualifier to indicate at what pressure something took place speed of sound <under pressure> 1 standard atmosphere-
determination methodP459Itemdetermination method: how a value is determined, or the standard by which it is declaredInterchange Bad Neuenahr-Ahrweiler <determination method> Normalhöhennull-
directionP560Itemdirection and road: qualifier to indicate the direction of the object relative to the subject item (for direction to the object, see P654) Oklahoma State Highway 74 <direction> north-
ISO standardP503External identifierISO standard: numeric identifier of this ISO standardISO 9000 series <ISO standard> 9000-
complies withP5009Itemcompliance: the product or work complies with a certain norm or passes a testMercedes-Benz OM646 engine <complies with> EURO3-
criterion usedP1013Itemcriterion: property by which a distinction or classification is madenorth <criterion used> direction-
named byP3938Itemperson or organisation that coined the name; use as qualifier for P2561 and its subproperties→ Property talk:P3938-
alternative nameP4970Stringsynonym and non-preferred term: qualifier for alternative name(s), given for a subject in a database entry, or preserved in references (even these are no longer the preferred name) handkerchief <alternative name> hankies-
diameterP2386Quantitydiameter: diameter of a circular or spherical object London Eye <diameter> 120 metre-
thicknessP2610Quantitythickness: extent from one surface to the opposite1 Krona - Gustaf V <thickness> 1 millimetre-
shapeP1419Itemobject form: shape of an object pyramid <shape> pyramid-
durationP2047Quantityduration: length of time of an event or processLa Grande Vadrouille <duration> 132 minute-
fabrication methodP2079Itemlist of manufacturing processes, production, process and building method: method, process or technique used to grow, cook, weave, build, assemble, manufacture the item silk <fabrication method> sericulture-
together withP1706Itemqualifier to specify the item that this property is shared with→ Property talk:P1706-
upper limitP5448Quantityupper limit of a range or an interval; (qualifier) used with a dummy value which specifies the type of the range or intervalred blood cell count <upper limit> 5.55 trillion cells per litre-
lower limitP5447Quantitylower limit of a range or an interval; (qualifier) used with a dummy value which specifies the type of the range or intervalred blood cell count <lower limit> 4.35 trillion cells per litre-
proportionP1107Quantityproportion: to be used as a qualifier, value must be between 0 and 1mayonnaise <proportion> 0.7-
durationP2047Quantityduration: length of time of an event or processLa Grande Vadrouille <duration> 132 minute-
together withP1706Itemqualifier to specify the item that this property is shared with→ Property talk:P1706-
speedP2052Quantityspeed: magnitude of the velocity of the item light <speed> 299,792,458 metre per second-
applies to partP518Itempart, aspect, or form of the item to which the claim appliesLady with an Ermine <applies to part> painting support-
relative toP2210Itemreference point: qualifier: what a statement value is relative to Zugspitze <relative to> Normalhöhennull-
ofP642Item(This property is being deprecated, see details at WD:P642) qualifier stating that a statement applies within the scope of a particular item→ Property talk:P642-
definition domainP1568Itemdomain of a function: set of "input" or argument values for which a mathematical function is defined square function <definition domain> set of real numbers-
relative humidityP5596Quantityrelative humidity: ratio of the partial pressure of water vapor to the equilibrium vapor pressure of water at a given temperature nylon 6 <relative humidity> 50 percent-
phase of matterP515Itemstate of matter: state or phase of the matter at which the measure was made pyrrole <phase of matter> liquid-
forceP5708Quantityforce: quantitative value of the interaction between two objects → Property talk:P5708-
moisture absorptionP5594Quantitymoisture and absorption of water: quantity of moisture a material would absorb in given conditions nylon 6 <moisture absorption> 2.7 percent-
work hardening strainP5893Quantitywork hardening: the strengthening of a material by the specified ratio of plastic deformation SAE 301 stainless steel <work hardening strain> 0 percent-


Other usefull propreties[edit]

Title		 ID Data type Description Described by Examples Inverse
properties for this typeP1963Propertywhen this subject is used as object of “instance of”, the following properties normally applybridge <properties for this type> number of spans and longest span-
property constraintP2302Itemproperty constraint: constraint applicable to a Wikidata property IMDb ID <property constraint> distinct-values constraint-
inverse propertyP1696Propertyinverse: links a property to its inverse property (which relates the subject and object in reverse order) part of <inverse property> has part(s)-
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