Contact Us Distributor Site Map Manuals Products Home
Navigation image map
Service
Customer Service
Calibration Service
Literature Request
Reference
   Software
Manuals
Technical Reference

Featured Products

Award Winning Products

NEWPORT Table of Total Emissivity


The following tables are presented for use as a guide when making infrared temperature measurements with NEWPORT or other infrared pyrometers. The total emissivity (e) for Metals, Non-metals and Common Building Materials are given.

Since the emissivity of a material will vary as a function of temperature and surface finish, the values in these tables should be used only as a guide for relative or delta measurements. The exact emissivity of a material should be determined when absolute measurements are required.

NON-METALS

METALS
Material Temperature (F) (C) E-Emissivity
ALLOYS: 20-Ni, 24-CR, 55-FE, Oxid. 392 200 .90
20-Ni, 24-CR, 55-FE, Oxid.. 932 500 .97
60-Ni , 12-CR, 28-FE, 518 270 .89
60-Ni , 12-CR, 28-FE,. 1040 560 .82
80-Ni, 20-CR, Oxidized 212 100 .87
80-Ni, 20-CR, Oxidized 1112 600 .87
80-Ni, 20-CR, Oxidized 2372 1300 .89
ALUMINUM: Unoxidized 77 25 .02
Unoxidized 212 100 .03
Unoxidized 932 500 .06
Oxidized 390 199 .11
Oxidized 1110 599 .19
Oxidized at 599C 390 199 .20
Oxidized at 599C 1110 599 .31
Heavily Oxidized 200 93 .09
Heavily Oxidized 940 504 .18
Highly Polished 212 100 .09
Roughly Polished 212 100 .04
Commercial Sheet 212 100 .06
Highly Polished Plate 440 227 .04
Highly Polished Plate 1070 577 .05
Bright Rolled Plate 338 170 .04
Bright Rolled Plate 932 500 .05
Alloy A3003, Oxidized 600 316 .40
Alloy A3003, Oxidized 900 482 .40
Alloy 1100-0 200-800 93-427 .05
Alloy 24ST 75 24 .09
Alloy 24ST, Polished 75 24 .09
Alloy 75ST 75 24 .11
Alloy 75ST, Polished 75 24 .08
Alloy 75ST, Polished 176 80 .34
Bismuth, Unoxidized 77 25 .05
Bismuth, Unoxidized 212 100 .06
BRASS: 73% Cu, 27% Zn, Polished 476 247 .03
73% Cu, 27% Zn, Polished 674 357 .03
62% Cu, 37% Zn, Polished 494 257 .03
62% Cu, 37% Zn, Polished 710 377 .04
83% Cu, 17% Zn, Polished 530 277 .03
MATT 68 20 .07
Burnished to Brown Colour 68 20 .40
Cu-Zn, Brass Oxidized 392 200 .61
Cu-Zn, Brass Oxidized 752 400 .60
Cu-Zn, Brass Oxidized 1112 600 .61
Unoxidized 77 25 .04
Unoxidized 212 100 .04
Cadmium 77 25 .02
CARBON: Lampblack 77 25 .95
Unoxidized 77 25 .81
Unoxidized 212 100 .81
Unoxidized 932 500 .79
Candle Soot 250 121 .95
Filament 500 260 .95
Graphitized 212 100 .76
Graphitized 572 300 .75
Graphitized 932 500 .71
Chromium 100 38 .08
Chromium 1000 538 .26
Chromium, Polished 302 150 .06
Cobalt, Unoxidized 932 500 .13
Cobalt, Unoxidized 1832 1000 .23
Columbium, Unoxidized 1500 816 .19
Columbium, Unoxidized 2000 1093 .24
COPPER: Cuprous Oxide 100 38 .87
Cuprous Oxide 500 260 .83
Cuprous Oxide 1000 538 .77
Black, Oxidized 100 38 .78
Etched 100 38 .09
Matte 100 38 .22
Roughly Polished 100 38 .07
Polished 100 38 .03
Highly Polished 100 38 .02
Rolled 100 38 .64
Rough 100 38 .74
Molten 1000 538 .15
Molten 1970 1077 .16
Molten 2230 1221 .13
Nickel Plated 100-500 38-260 .37
Dow Metal 0.4-600 -18-316 .15
GOLD: Enamel 212 100 .37
Plate on .0005 Silver 200-750 93-399 .11-.14
Plate on .0005 Nickel 200-750 93-399 .07-.09
Polished 100-500 38-260 .02
Polished 1000-2000 538-1093 .03
HAYNES ALLOY C: Oxidized 600-2000 316-1093 .90-.96
HAYNES ALLOY 25: Oxidized 600-2000 316-1093 .86-.89
HAYNES ALLOY X: Oxidized 600-2000 316-1093 .85-.89
Inconel Sheet 1000 538 .28
Inconel Sheet 1200 649 .42
Inconel Sheet 1400 760 .58
Inconel X, Polished 75 24 .19
Inconel B, Polished 75 24 .21
IRON: Oxidized 212 100 .74
Oxidized 930 499 .84
Oxidized 2190 1199 .89
Unoxidized 212 100 .05
Red Rust 77 25 .70
Rusted 77 25 .65
Liquid 2760-3220 1516-1771 .42-.45
CAST IRON: Oxidized 390 199 .64
Oxidized 1110 599 .78
Oxidized 212 100 .21
Strong Oxidation 40 104 .95
Strong Oxidation 482 250 .95
Liquid 2795 1535 .29
WROUGHT IRON: Dull 77 25 .29
Dull 660 349 .94
Smooth 100 38 .94
Polished 100 38 .35
LEAD: Polished 100-500 38-260 .28
Rough 100 38 .07--.13
Oxidized 100 38 .16-.20
Oxidized at 1100F 100 38 .9
Gray Oxidized 100 38 .10
Magnesium 100-500 38-260 .10
Magnesium Oxide 1880-3140 1027-1727 .12
Mercury 32 0 .09
" 77 25 .10
" 100 38 .10
" 212 100 .12
" Oxidized at 1000F 600 316 .80
" Oxidized at 1000F 700 371 .84
" Oxidized at 1000F 800 427 .84
" Oxidized at 1000F 900 482 .83
" Oxidized at 1000F 1000 538 .82
Monel, Ni-Cu 392 200 .41
Monel, Ni-Cu 752 400 .44
Monel, Ni-Cu 1112 600 .46
Monel, Ni-Cu Oxidized 68 20 .43
Monel, Ni-Cu Oxid. at 1110F 1110 599 .46
NICKEL: Polished 100 38 .05
Oxidized 100-500 38-260 .31-.46
Unoxidized 77 25 .05
Unoxidized 212 100 .06
Unoxidized 932 500 .12
Unoxidized 1832 100 .19
Electrolytic 100 38 .04
Electrolytic 500 260 .06
Electrolytic 1000 538 .10
Electrolytic 2000 1093 .16
Nickel Oxide 1000-2000 538-1093 .59-.86
Palladium Plate (.00005 on .0005 silver) 200-750 38 .16-.17
Platinum 100 38 .05
Platinum 500 260 .05
Platinum 100 538 .10
Platinum, Black 100 38 .93
Platinum, Black 500 260 .96
Platinum, Black 2000 1093 .97
" Oxidized at 1100F 500 260 .07
" Oxidized at 1100F 1000 538 .11
Rhodium Flash (0.0002on 0.0005 Ni) 200-700 93-371 .10-.18
SILVER: Plate (0.0005 on Ni) 200-700 93-371 .06-.07
Polished 100 38 .01
Polished 500 260 .02
Polished 1000 538 .03
Polished 2000 1093 .03
STEEL: Cold Rolled 200 93 .75-.85
Ground Sheet 1720-2010 938-1099 .55-.61
Polished Sheet 100 38 .07
Polished Sheet 500 260 .10
Polished Sheet 1000 538 .14
Mild Steel, Polished 75 24 .10
Mild Steel, Smooth 75 24 .12
Mild Steel,Liquid 2910-3270 1599-1793 .28
Steel, Unoxidized 212 100 .08
Steel, Oxidized 77 25 .80
STEEL ALLOYS: Type 301, Polished 75 24 .27
Type 301, Polished 450 232 .57
Type 301, Polished 1740 949 .55
Type 303, Oxidized 600-2000 600-2000 316-1093 .74-.87
Type 310, Rolled 1500-2100 1500-2100 816-1149 .56-.81
Type 316, Polished 75 24 .28
Type 316, Polished 450 232 .57
Type 316, Polished 1740 949 .66
Type 321 200-800 93-427 .27-.32
Type 321 300-1500 149-815 .18-.49
Type 321 w/BK Oxide 200-800 93-316 .66-.76
Type 347, Oxidized 600-2000 149-815 .87-.91
Type 350 200-800 316-1093 .18-.27
Type 350 Polished 300-1800 149-982 .11-.35
Type 446 300-1500 149-815 .15-.37
Type 17-7 PH 200-600 93-316 .44-.51
Type 17-7 PH Polished 300-1500 149-815 .09-.16
Type C1020, Oxidized 600-2000 316-1093 .87-.91
Type PH-15-7 MO 300-1200 149-649 .07-.19
Tantalum, Unoxidized 1340 727 .14
Tantalum, Unoxidized 2000 1093 .19
Tantalum, Unoxidized 3600 1982 .26
Tantalum, Unoxidized 5306 2930 .30
Tin, Unoxidized 77 25 .04
Tin, Unoxidized 212 100 .05
Tinned Iron Bright 76 24 .05
Tinned Iron Bright 212 100 .08
Titanium Alloy c110M Polished 300-1200 149-649 .08-.19
" Oxidized at 538C (1000F) 200-800 93-427 .51-.61
" Oxidized at 538C (1000F) 200-800 93-427 .35-.48
Anodized into SS 200-600 93-316 .96-.82
TUNGSTEN: Unoxidized 77 25 .02
Tungsten Unoxidized 212 100 .03
Tungsten Unoxidized 932 500 .07
Tungsten Unoxidized 1832 1000 .15
Tungsten Unoxidized 2732 1500 .23
Tungsten Unoxidized 3632 2000 .28
Filament (Aged) 100 38 .03
Filament (Aged) 1000 583 .11
Filament (Aged) 5000 2760 .35
Uranium Oxide 1880 1027 .79
ZINC: Bright Galvanized 100 38 .23
Commercial 99.1% 500 260 .05
Galvanized 100 38 .28
Oxidized 500-1000 260-538 .11
Polished 100 38 .02
Polished 500 260 .03
Polished 1000 538 .04
Polished 2000 1093 .06


Go to Next Page

Back to Last Page