AUTO PIPE B31.3ASME B31.3

HOOP STRESSALLOWABLE STRESS

SHOOP=PDo-PYtred=tnom[1-(m/100)] -cAS=E*W*Sh2tredtred=0.628inAS=20900PsiSHOOP=20215Lb/Pulg2AS=1470(Kg/cm2)SHOOP=1422(Kg/cm2)E=0.95W=1Lb/Pulg2Sh=22000PsiP = Internal design pressure (gauge) of the pipe specified on the Operating Loads dialog for each defined operating load condition. (Presin mxima de operacin (Kg/cm2))91.501301.13W = Weld joint strength reduction factor which is temperature dependent (varies linearly from 1.0 at 950F(510C) and 0.5 and 1500F(815C) when Auto is used). [Long Weld W factor on the pipe properties screen]Do = outside diameter of the pipe (pulg)20.000tnom = Nominal wall thickness of the pipe. For BS 7159, tnom = td. (in)

0.860
AGUSTIN: ESPESOR MINIMO REQUERIDO PARA Pmax.

Y = The default value is 0.40 for the B31.1, B31.1-1967, B31.30.400E = Weld quality factor from tables A-1A and A-1B [Long Weld E factor on the pipe properties screen]m = Manufacturing, or mill tolerance (%) for the nominal pipe size (12.5%)12.500c = Pipe wall corrosion allowance (pulg).0.125
SOPORTE COMIMSA: CUANDO ES INSTALACION EN OPERACIN SE CONSIDERA "0" CORROSION POR SER ESPESOR MEDIDO. CUANDO ES PROYECTO ES DEACUERDO A LA SPEC0.125"/.0625"/ETC.Sh = The hot allowable stress is used in the calculation of code stress ratios. If the current pipe material is non-standard (NS) or a standard material (e.g., CS, HC, etc.), the default value is the cold allowable stress specified from the Pipe dialog. This field is closed to input for the following codes: ASME B31.4, ASME B31.8, BS 7159 and General.tred = Reduced (residual) wall thickness of the pipe (pulg)

RATION=0.97DiametroEspesor minimo (in) Espesor minimo (mm) Ratio42" D.N.1.65041.9100.9736" D.N.1.43036.3220.9724" D.N.1.00025.4000.9720" D.N.0.86021.8440.9718" D.N.0.78519.9390.9716" D.N.0.71518.1610.9714" D.N.0.64516.3830.9712" D.N.0.57014.4780.97

1.52738.786

AUTO PIPE B31.4ASME B31.4

HOOP STRESSALLOWABLE HOOP STRESS

SHOOP=PDo-PYtcor=tnom-cSE = 0.72*Ej*SyASTM A-106 Gr. B.2tCORZLZLtcor=0.688inSE=25200PsiSHOOP=6826Lb/Pulg2SE=1772(Kg/cm2)SHOOP=480(Kg/cm2)

Ej=1Lb/Pulg2Sy=35000PsiP = Internal design pressure (gauge) of the pipe specified on the Operating Loads dialog for each defined operating load condition. (Presin mxima de operacin (Kg/cm2))22.00312.84Ej= Weld joint quality (efficiency) factor. For Stoomwezen, this symbol represents the strength reduction coefficient.Do = outside diameter of the pipe (pulg)30.000Sy = Minimum yield stress of metal pipe material.tnom = Nominal wall thickness of the pipe. For BS 7159, tnom = td. (in)

0.750
AGUSTIN: ESPESOR MINIMO REQUERIDO PARA Pmax.

ZL = Weld efficiency factor for welded pipes and fittings having longitudinal or spiral welds. This factor is included in the calculation of hoop pressure stresses. Refer to weld factors for more information.1.000Y = Therefore, AutoPIPE defaults to Y = 0.0 when the "B31.4" code has been selected. 0c = Pipe wall corrosion allowance (pulg).0.0625
SOPORTE COMIMSA: CUANDO ES INSTALACION EN OPERACIN SE CONSIDERA "0" CORROSION POR SER ESPESOR MEDIDO. CUANDO ES PROYECTO ES DEACUERDO A LA SPEC0.125"/.0625"/ETC.tCOR = Corroded wall thickness of the pipe (= tnom - c). For BS 7159, tcor = td + tc. (pulg).

RATION=0.27DiametroEspesor minimo (in) Espesor minimo (mm) Ratio42" D.N.1.65041.9100.9736" D.N.1.43036.3220.9724" D.N.1.00025.4000.9720" D.N.0.86021.8440.9718" D.N.0.78519.9390.9716" D.N.0.71518.1610.9714" D.N.0.64516.3830.9712" D.N.0.57014.4780.97

1.52738.786

AUTO PIPE B31.8ASME B31.8

HOOP STRESSDiametroEspesor minimo (in) Espesor minimo (mm) Ratio42" D.N.0.0000.97Sh=PDSFEjT36" D.N.0.0000.972t24" D.N.0.0000.9720" D.N.0.0000.97Sh=26709Lb/Pulg226000Lb/Pulg218" D.N.0.0000.97Sh=1878(Kg/cm2)1828(Kg/cm2)16" D.N.0.0000.9714" D.N.0.0000.97RECHAZADO12" D.N.0.0000.97Lb/Pulg2P = Presin mxima de operacin (Kg/cm2)91.501301.131.50038.100Do = Nominal outside diameter of pipe, in.42.000Ej = Longitudinal joint weld factor from table 841.115A (Weld factor, result model options, Default = 1.0)

1.000

F = hoop stress design factor from table 841.114A (Design factor F, result model options, Default = 0.72 )0.500

S = Specified minimum yield strength, psi (defined on pipe properties dialog)52000T = Temperature rating factor from table 841.116A (result model options, Default = 1.0)1

t = Nominal wall thickness, in.1.023
AGUSTIN: AGUSTIN:ESPESOR MINIMO REQUERIDO PARA POP.

RATION=1.03