1、CONDENSED METRIC PRACTICE GUIDE FOR CORROSIONA,BMultiply By To Convert to SI Units:AREAinch2645.2 millimetre2(mm2)inch26.452 centimetre2(cm2)foot20.092 90 metre2(m2)foot2929.0 centimetre2(cm2)yard20.836 1 metre2(m2)BENDING MOMENT (TORQUE)dyne centimetre 0.000 000 1 newton metre (Nm)pound-force inch
2、0.113 0 newton metre (Nm)pound-force foot 1.356 newton metre (Nm)CORROSION DATEmil per year (mpy) 0.025 40 millimetre per year (mm/y)Amil per year 25.40 micrometre per year (m/y)inch per year (ipy) 25.40 millimetre per year (mm/y)inch per month (ipm) 304.8 millimetre per year (mm/y)milligram per dec
3、imetre2day (mdd) 0.100 0 gram per metre2day (g/m2d)Amilligram per decimetre2day 0.004 167 gram per metre2hour (g/m2h)milligram per decimetre2day 100.0 milligram per metre2day (mg/m2d)CURRENT DENSITYmilliampere per millimetre21000. ampere per metre2(A/m2)milliampere per centimetre210.00 ampere per me
4、tre2(A/m2)microampere per centimetre20.010 00 ampere per metre2(A/m2)milliampere per metre20.001 000 ampere per metre2(A/m2)milliampere per millimetre2 1.000 ampere per metre2(A/m2)milliampere per foot210.76 milliampere per metre2(mA/m2)ampere per inch21 550. ampere per metre2(A/m2)ampere per foot21
5、0.76 ampere per metre2(A/m2)ampere per centimetre210 000. ampere per metre2(A/m2)ampere per decimetre2100.0 ampere per metre2(A/m2)ENERGYBritish thermal unit (Btu) (60F) 1055. joule (J)calorie (mean) 4.190 joule (J)foot-pound-force 1.356 joule (J)kilocalorie (mean) 4190. joule (J)kilowatt hour 3.600
6、 megajoule (MJ)FLOW, VOLUME PER UNIT TIMEfoot3per second 0.028 32 metre3per second (m3/s)foot3per second 2445. metre3per day (m3/d)foot3per minute 40.78 metre3per day (m3/d)gallon (U. S. liquid) per minute 5.451 metre3per day(m3/d)gallon (U. S. liquid) per hour 0.090 85 metre3per day (m3/d)gallon (U
7、. S. liquid) per day 0.003 785 metre3per day (m3/d)FORCEdyne 0.000 01 newton (N)kilogram-force 9.807 newton (N)ounce-force 0.278 0 newton (N)pound-force 4.448 newton (N)LENGTHangstrom 1 3 1010metre (m)angstrom 0.100 0 nanometre (nm)micron 0.001 0 millimetre (mm)micron 1.000 micrometre (m)mil 0.025 4
8、0 millimetre (mm)mil 25.40 micrometre (m)inch 2.540 centimetre (cm)inch 25.40 millimetre (mm)inch 25 400. micrometre (m)foot 0.304 8 metre (m)yard 0.914 4 metre (m)mile 1.609 kilometre (km)1CONDENSED METRIC PRACTICE GUIDE FOR CORROSIONA,BMultiply By To Convert to SI Units:MASSgrain 64.80 milligram (
9、mg)ounce 28.35 gram (g)pound 0.453 6 kilogram (kg)pound 453.6 gram (g)ton (short, 2000 lb) 907.2 kilogram (kg)MASS PER UNIT AREAounce-mass per foot2305.1 gram per metre2(g/m2)pound-mass per foot24.882 kilogram per metre2(kg/m2)pound-mass per foot24882. gram per metre2(g/m2)pound-mass per inch2703.1
10、kilogram per metre2(kg/m2)MASS PER UNIT VOLUME (DENSITY)gram per centimetre31000. kilogram per metre3(kg/m3)ounce (mass) per inch31730. kilogram per metre3(kg/m3)ounce (mass) per gallon (U. S. liquid) 7.489 kilogram per metre3(kg/m3)ounce (mass) per gallon (U. S. liquid) 7.489 gram per litre (g/l)po
11、und (mass) per foot316.02 kilogram per metre3(kg/m3)pound (mass) per gallon (U. S. liquid) 119.8 kilogram per metre3(kg/m3)POWERBtu (thermochemical) per second 1054. watt (W)horsepower (electric) 746.0 watt (W)kilocalorie (thermochemical) per second 4184. watt (W)PRESSURE OR STRESSatmosphere (normal
12、 5 760 torr) 101 300. pascal (Pa)centimetre of mercury (0C) 1 333. pascal (Pa)dyne per centimetre20.100 0 pascal (Pa)inch of mercury (60F) 3377. pascal (Pa)inch of water (60F) 248.8 pascal (Pa)kilogram-force per metre29.807 pascal (Pa)kip per inch26.895 megapascal (MPa)pound-force per inch26.895 kil
13、opascal (kPa)pound-force per foot247.88 pascal (Pa)STRESS INTENSITY(pound-force per inch2) inch1/20.034 75 newton per millimetre3/2(N/mm3/2)(kip per inch2) inch1/234.75 newton per millimetre3/2(N/mm3/2)(pound-force per inch2) inch1/20.001 099 megapascal metre1/2(MPam1/2)C(kip per inch2) inch1/21.099
14、 megapascal metre1/2(MPam1/2)ATEMPERATUREdegree Celsiusdegree FahrenheitTK5 TC+ 273.15TC5 (TF 32)/1.8kelvin (K)degree Celsius (C)TIMEhour (mean solar) 3600. second (s)day (mean solar) 86 400. second (s)month (calendar) 2.628 megasecond (Ms)year (calendar) 31.54 megasecond (Ms)VELOCITY (SPEED)inch pe
15、r second 25.40 millimetre per second (mm/s)foot per second 0.304 8 metre per second (m/s)inch per minute 0.423 3 millimetre per second (mm/s)mile per hour 1.609 kilometre per hour (km/h)mile per hour 0.447 0 metre per second (m/s)VOLUMEinch316.39 centimetre3(cm3)fluid ounce (U. S.) 29.57 centimetre3
16、(cm3)pint (U. S. liquid) 473.2 centimetre3(cm3)quart (U. S. liquid) 946.4 centimetre3(cm3)gallon (U. S. liquid) 0.003 785 metre3(m3)gallon (U. S. liquid) 3.785 litre (l)AThis condensed guide is under the jurisdiction of ASTM Committee G-1 on Corrosion of Metals.BThis guide is based on ASTM E 380 84, Standard for Metric Practice.CPreferred units.2
