mat-presets.json

/*
These are the material presets for the Coil wrapping and Wire Wizard calculators in the Steam Engine calculator suite.

The format of this file is a non-standard JSON with JavaScript style comments.

All materials must have the following properties:
* id : A short name consisting only of the letters a-z and the numbers 0-9.
* nm : The name of the wire material, optionally with the vendor name.
* rstv : The resistivity in Ω mm²/m. The resistivity needs to be accurate.
* hc : The heat capacity in J/g×K.
* dens : The density in g/cm³.

Some of the existing values for heat capacity and density are estimates. This is clearly not optimal, 
but it will have a smaller effect on the accuracy of most calculations than inaccuracies in resistivity would. 
Since these values are mandatory (at least for now), an estimate is better than nothing.
The values may be made optional in the future, and estimates removed.

Optional properties:
* tcr : Temperature coefficient of resistance, e.g. 0.006 for Ni200.
* tfr : Temperature factors of resistance. This is an array of temperature-factor pairs.

It is highly desirable to have a TCR or a TFR property for all new materials, even if the TCR is very low.

The source URL(s) for all new material can - and should - be be added as a JavaScript style comment. 
Any irregularities or assumptions in the data should also be pointed out and explained JavaScript style comments.
*/
[
	{
		"id": "ka1"
		,"nm": "Kanthal A1 / APM"
		,"rstv": 1.45
		,"hc": 0.46 // typical kanthal, and stated for ka1
		,"dens": 7.1
		,"tfr" : [[20,1], [100,1.0001], [400,1.001], [500,1.01], [600,1.02], [700,1.02], [800,1.03], [900,1.04], [1000,1.04], [1200,1.04], [1300,1.04], [1400,1.05]]
	},{
		"id": "ka"
		,"nm": "Kanthal A / AE / AF"
		,"rstv": 1.39
		,"hc": 0.4625 // guesstimate
		,"dens": 7.15
		,"tfr" : [[20,1], [100,1.001], [200,1.01], [300,1.015], [400,1.02], [500,1.03], [600,1.04], [700,1.045], [800,1.05], [900,1.055], [1000,1.06], [1300,1.065]]
	},{
		"id": "kd"
		,"nm": "Kanthal D"
		,"rstv": 1.35
		,"hc": 0.465 // guesstimate
		,"dens": 7.25
		,"tfr": [[20,1], [100,1.001], [200,1.01], [300,1.015], [400,1.02], [500,1.03], [600,1.04], [700,1.05], [800,1.06], [900,1.07], [1100,1.075], [1200,1.08], [1300,1.085]]
	},{
		"id": "n20"  // 20% Cr, 80% Ni
		,"nm": "Nichrome N20"
		,"rstv": 0.95
		,"hc": 0.447 // guesstimate - all the elements in Nichrome are between 0.444 and 0.449
		,"dens": 8.7 // guesstimate
	},{
		"id": "n40"
		,"nm": "Nichrome N40"
		,"rstv": 1.04
		,"hc": 0.447
		,"dens": 8.6 // interpolated
	},{
		"id": "n60"
		,"nm": "Nichrome N60 (C)"
		,"rstv": 1.11
		,"hc": 0.447
		,"dens": 8.5 // interpolated
		,"tcr": 0.0004
		,"tfr":[
			[20,1]
			,[93, 1.017]
			,[204, 1.035]
			,[315, 1.052]
			,[427, 1.069]
			,[538, 1.086]
			,[649, 1.092]
			,[760, 1.098]
			,[871, 1.102]
			,[985, 1.105]
		]
	},{
		"id": "n70"
		,"nm": "Nichrome N70 (B)"
		,"rstv": 1.18
		,"hc": 0.447
		,"dens": 8.4 // interpolated
	},{
		"id": "n80" // 80% Cr, 20% Ni
		,"nm": "Nichrome N80 (A)"
		,"rstv": 1.09
		,"hc": 0.447
		,"dens": 8.31
		,"tfr":[
			[20,1]
			,[93, 1.008]
			,[204, 1.02]
			,[315, 1.033]
			,[427, 1.048]
			,[538, 1.063] // above this point the resistivity dips down again
		]
   },{
        "id": "ss304"// http://dtic.mil/dtic/tr/fulltext/u2/a129160.pdf
        ,"nm": "SS 304"
        ,"rstv": 0.713 // http://dtic.mil/dtic/tr/fulltext/u2/a129160.pdf
        ,"hc": 0.5 // guesstimate
        ,"dens": 8 // guesstimate
        ,"tfr": [
			[-100,0.8412]
			,[20,1]
			,[100,1.0909]
			,[150,1.1426]
			,[200,1.1917]
			,[250,1.2388]
			,[300,1.2844]
			,[500,1.4445]
		]
   
    },{
        "id": "ss316"// source: http://dtic.mil/dtic/tr/fulltext/u2/a129160.pdf
        ,"nm": "SS 316"
        ,"rstv": 0.771 // http://dtic.mil/dtic/tr/fulltext/u2/a129160.pdf
        ,"hc": 0.5 // guesstimate
        ,"dens": 8 // guesstimate
        ,"tfr": [
			[-100,0.8646]
			,[20,1]
			,[100,1.0795]
			,[150,1.1258]
			,[200,1.1678]
			,[250,1.2075]
			,[300,1.2463]
			,[500,1.3844]
		]
	},{
		"id": "ss316l"
		,"nm": "SS 316L / Elite"
		,"rstv": 0.75
		,"hc": 0.5
		,"dens": 8
		,"tfr": [
			[-183,0.7588]
			,[-173,0.7717]
			,[-123,0.8366]
			,[-73,0.8962]
			,[-23,0.9546]
			,[0, 0.978]
			,[20, 1]
			,[100, 1.08]
			,[105, 1.084]
			,[110, 1.089]
			,[115, 1.094]
			,[120, 1.099]
			,[125, 1.103]
			,[130, 1.108]
			,[135, 1.112]
			,[140, 1.117]
			,[145, 1.121]
			,[150, 1.126]
			,[155, 1.13]
			,[160, 1.134]
			,[165, 1.139]
			,[170, 1.143]
			,[175, 1.147]
			,[180, 1.151]
			,[185, 1.156]
			,[190, 1.16]
			,[195, 1.164]
			,[200, 1.168]
			,[205, 1.172]
			,[210, 1.176]
			,[215, 1.18]
			,[220, 1.184]
			,[225, 1.188]
			,[230, 1.192]
			,[235, 1.196]
			,[240, 1.2]
			,[245, 1.204]
			,[250, 1.207]
			,[255, 1.211]
			,[260, 1.215]
			,[265, 1.219]
			,[270, 1.223]
			,[275, 1.227]
			,[280, 1.231]
			,[285, 1.235]
			,[290, 1.239]
			,[295, 1.242]
			,[300, 1.246]
			,[327,1.2672]
			,[427,1.3372]
			,[527,1.4008]
			,[627,1.454]
			,[727,1.5006]
		]
	},{
		"id": "ss317l"
		,"nm": "SS 317L / Haywire"
		,"rstv": 0.81 // Or 0.87? Or 0.79? Conflicting information.
		,"hc": 0.5
		,"dens": 7.9
		,"tcr": 0.00094
	},{
		"id": "ss430"
		,"nm": "SS 430"
		,"rstv": 0.6 // http://www.aksteel.com/pdf/markets_products/stainless/ferritic/430_Data_Sheet.pdf
		,"hc": 0.46 // http://www.matweb.com/search/datasheet.aspx?matguid=a3ab430905ca4c5a925e7fbf68826140&ckck=1
		,"dens": 7.74 // http://www.aksteel.com/pdf/markets_products/stainless/ferritic/430_Data_Sheet.pdf
		,"tcr": 0.00138
	},{
		"id": "ti1"
		,"nm": "Titanium 1"
		,"rstv": 0.47
		,"hc": 0.523
		,"dens": 4.43
		,"tcr": 0.0035
		,"tfr": [
			[20,1]
			,[24,1.022177419]
			,[37,1.066532258]
			,[53,1.120967742]
			,[66,1.169354839]
			,[78,1.213709677]
			,[94,1.272177419]
			,[106,1.3125]
			,[120,1.366935484]
			,[134,1.41733871]
			,[147,1.463709677]
			,[159,1.510080645]
			,[176,1.572580645]
			,[189,1.622983871]
			,[221,1.739919355]
			,[233,1.782258065]
			,[247,1.836693548]
			,[258,1.872983871]
			,[270,1.915322581]
			,[287,1.97983871]
			,[301,2.028225806]
			,[323,2.106854839]
			,[339,2.163306452]
			,[353,2.20766129]
			,[364,2.245967742]
			,[374,2.278225806]
			,[392,2.336693548]
			,[404,2.379032258]
			,[419,2.425403226]
			,[431,2.465725806]
			,[445,2.510080645]
			,[460,2.556451613]
			,[479,2.614919355]
			,[497,2.665322581]
			,[513,2.709677419]
			,[541,2.788306452]
			,[557,2.828629032]
			,[574,2.870967742]
			,[594,2.921370968]
			,[609,2.959677419]
			,[630,3.006048387]
			,[646,3.04233871]
			,[669,3.090725806]
			,[683,3.116935484]
			,[702,3.153225806]
			,[720,3.189516129]
			,[739,3.219758065]
			,[753,3.243951613]
			,[770,3.27016129]
			,[794,3.306451613]
			,[812,3.330645161]
			,[830,3.352822581]
			,[843,3.370967742]
		]
		
	},{
		"id": "ti2"  // R50400
		,"nm": "Titanium 2 (R50400)"
		,"rstv": 0.56
		,"hc": 0.54 // guesstimate
		,"dens": 4.51
		,"tfr": [ // from ECF user vapealone
			[20, 1]
			,[27, 1.027237354]
			,[44, 1.091439689]
			,[61, 1.145914397]
			,[76, 1.210116732]
			,[95, 1.262645914]
			,[109, 1.317120623]
			,[128, 1.383268482]
			,[146, 1.443579767]
			,[163, 1.505836576]
			,[181, 1.56614786]
			,[199, 1.630350195]
			,[217, 1.694552529]
			,[233, 1.750972763]
			,[247, 1.80155642]
			,[266, 1.86770428]
			,[287, 1.939688716]
			,[311, 2.027237354]
			,[328, 2.087548638]
			,[343, 2.13618677]
			,[360, 2.190661479]
			,[387, 2.274319066]
			,[413, 2.357976654]
			,[430, 2.406614786]
			,[456, 2.492217899]
			,[475, 2.542801556]
			,[495, 2.605058366]
			,[521, 2.673151751]
			,[535, 2.710116732]
			,[555, 2.760700389]
			,[569, 2.793774319]
			,[591, 2.842412451]
			,[606, 2.879377432]
			,[628, 2.929961089]
			,[641, 2.957198444]
			,[658, 2.990272374]
			,[672, 3.019455253]
			,[693, 3.058365759]
			,[719, 3.10311284]
			,[743, 3.142023346]
			,[755, 3.175097276]
			,[772, 3.196498054]
			,[800, 3.219844358]
			,[836, 3.26459144]
		]
	},{
		"id": "tie" // "Titanium ready" from e-SmokeGuru
		,"nm": "Titanium ready (e-SG)"
		/*
		- 0.18mm wire at 33.4 Ω/m gives 0.85 Ω mm²/m,
		- 0.20mm wire at 22.5 Ω/m gives 0.71 Ω mm²/m,
		- 0.25mm wire at 19.5 Ω/m gives 0.96 Ω mm²/m,
		- 0.32mm wire at 13.3 Ω/m gives 1.07 Ω mm²/m,
		- 0.40mm wire at 6.8 Ω/m gives 0.85 Ω mm²/m.				
		*/
		,"rstv": 0.85
		,"hc": 0.56 // guesstimate
		,"dens": 4.75 // guesstimate
	},{
		"id": "nio"
		,"nm": "Niobium alloy"
		,"rstv": 1.46809443507 // Niobium has a resistivity of 1.01247892074 times that of Kanthal A1 at the same gauge, according to StealthVape.
		,"hc": 0.45 // wild guess
		,"dens": 7.5 // wild guess
	},{
		"id": "ni200lin"
		,"nm": "Nickel Ni200 (linear TCR)"
		,"rstv": 0.096
		,"hc": 0.456
		,"dens": 8.89
		,"tcr": 0.006
	},{
		"id": "ni200"
		,"nm": "Nickel Ni200  (TFR curve)"
		,"rstv": 0.096
		,"hc": 0.456
		,"dens": 8.89
		,"tcr": 0.006
		,"tfr": [ // from Evolv
			[-73.3333333333333333333, 0.620729625225067]
			,[-17.7777777777777777778, 0.827668249607086]
			,[20,1]
			,[21.1111111111111111111, 1.00000214576721]
			,[93.3333333333333333333, 1.31032383441925]
			,[204.4444444444444444444, 1.94822633266449]
			,[315.5555555555555555556, 2.82758617401123]
			,[426.6666666666666666667, 3.51726651191711]
		]
	},{
		"id": "nife30"
		,"nm": "NiFe30 (Resistherm)"
		,"rstv": 0.33 // http://www.abcpol.pl/en/our-offer/resistance-alloys
		,"hc": 0.45 // guesstimate
		,"dens": 8.2 // guesstimate
		,"tcr": 0.0032
	},{
		"id": "reactor"
		,"nm": "NiFe (Reactor Wire)"
		,"rstv": 0.4334
		,"hc": 0.45 // guesstimate
		,"dens": 8.2 // guesstimate
		,"tcr": 0.004
	},{
		"id": "nife30stealth"
		,"nm": "NiFe30 (StealthVape)"
		,"rstv": 0.21
		,"hc": 0.45 // guesstimate
		,"dens": 8.5
		,"tcr": 0.005
   },{
        "id": "nidh" // http://kanthal.com/en/products/material-datasheets/wire/resistance-heating-wire-and-resistance-wire/100-nickel/
        ,"nm": "Nickel DH"
        ,"rstv": 0.09 // http://kanthal.com/en/products/material-datasheets/wire/resistance-heating-wire-and-resistance-wire/100-nickel/
        ,"hc":  0.48// http://kanthal.com/en/products/material-datasheets/wire/resistance-heating-wire-and-resistance-wire/100-nickel/
        ,"dens": 8.9 // http://kanthal.com/en/products/material-datasheets/wire/resistance-heating-wire-and-resistance-wire/100-nickel/
        ,"tfr": [
			[-100,0.6]
			,[20,1]
			,[100,1.4]
			,[150,1.6941]
			,[200,2.08]
			,[250,2.5092]
			,[300,2.97]
			,[500,4.23]
		]
    },{
        "id": "nft70" // http://kanthal.com/en/products/material-datasheets/wire/resistance-heating-wire-and-resistance-wire/nifethal-70/
        ,"nm": "Nifethal 70 (Alloy120)"
        ,"rstv": 0.2 // http://kanthal.com/en/products/material-datasheets/wire/resistance-heating-wire-and-resistance-wire/nifethal-70/
        ,"hc": 0.52 // http://kanthal.com/en/products/material-datasheets/wire/resistance-heating-wire-and-resistance-wire/nifethal-70/
        ,"dens": 8.45 // http://kanthal.com/en/products/material-datasheets/wire/resistance-heating-wire-and-resistance-wire/nifethal-70/
        ,"tfr": [
			[-100,0.576]
			,[20,1]
			,[100,1.42]
			,[150,1.68]
			,[200,1.91]
			,[250,2.19]
			,[300,2.47]
			,[500,3.66]
		]
    },{
        "id": "nft52" // http://kanthal.com/en/products/material-datasheets/wire/resistance-heating-wire-and-resistance-wire/nifethal-52/
        ,"nm": "Nifethal 52 (Alloy52)"
        ,"rstv": 0.37 // http://kanthal.com/en/products/material-datasheets/wire/resistance-heating-wire-and-resistance-wire/nifethal-52/
        ,"hc": 0.5 // http://kanthal.com/en/products/material-datasheets/wire/resistance-heating-wire-and-resistance-wire/nifethal-52/
        ,"dens": 8.2 // http://kanthal.com/en/products/material-datasheets/wire/resistance-heating-wire-and-resistance-wire/nifethal-52/
        ,"tfr": [
			[-100,0.664]
			,[20,1]
			,[100,1.33]
			,[150,1.53]
			,[200,1.73]
			,[250,1.93]
			,[300,2.13]
			,[500,2.77]
		]
	}
]