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ESPECIALIDAD

GESTION DE CALIDAD TORQUE UNIONES BRIDADAS. PERNOS y ESPARRAGOS FERRITICOS. ASTM A 193 Gr. B7 / B16 o EQUIV. A320 Gr. L7. A 453 Gr. 660 Cl. A

OCTUBRE 2015

FECHA

150 Lbs. Diám. 1/2" 1/2" 1/2" 1/2" 1/2" 5/8" 5/8" 5/8" 5/8" 5/8" 3/4" 3/4" 3/4" 7/8" 7/8" 1" 1" 1.1/8" 1.1/8" 1.1/8"

Largo 2.1/4" 2.1/4" 2.1/2" 2.1/2" 2.3/4" 2.3/4" 3.1/2" 3.1/2" 3.1/2" 3.1/2" 3.3/4" 4" 4.1/4" 4.3/4" 4.3/4" 5.1/4" 5.1/2" 6" 6.1/4" 7"

300 Lbs. Cant. 4 4 4 4 4 4 4 4 8 8 8 8 8 12 12 12 16 16 20 20

Diám. 1/2" 5/8" 5/8" 5/8" 3/4" 3/4" 3/4" 3/4" 3/4" 3/4" 3/4" 3/4" 7/8" 1" 1.1/8" 1.1/8" 1.1/4" 1.1/4" 1.1/4" 1.1/2"

800 Lbs.

Largo Cant. Diám. Largo Cant. 2.1/2" 4 1/2" 3" 4 3" 4 5/8" 3.1/2" 4 3" 4 5/8" 3.1/2" 4 3.1/4" 4 5/8" 3.3/4" 4 3.1/2" 4 3/4" 4.1/4" 4 3.1/2" 4 5/8" 4.1/4" 8 4" 8 3/4" 4.3/4" 8 4.1/4" 8 3/4" 5" 8 4.1/4" 8 7/8" 5.1/2" 8 4.1/2" 8 7/8" 5.3/4" 8 4.3/4" 8 1" 6.1/2" 8 4.3/4" 12 1" 6.3/4" 12 5.1/2" 12 1.1/8" 7.3/4" 12 6.1/4" 16 1.1/4" 8.1/2" 16 6.3/4" 16 1.1/4" 8.3/4" 20 7" 20 1.3/8" 9.1/4" 20 7.1/2" 20 1.1/2" 10" 20 7.3/4" 24 1.5/8" 10.3/4" 20 8.1/4" 24 1.5/8" 11.1/2" 24 9.1/4" 24 1.7/8" 13" 24

900 Lbs. Diám. 3/4" 3/4" 7/8" 7/8" 1" 7/8" 1" 7/8" xxxx 1.1/8" 1.1/4" 1.1/8" 1.3/8" 1.3/8" 1.3/8" 1.1/2" 1.5/8" 1.7/8" 2" 2.1/2"

04

REVISION POR

VICTOR N. GUERRERO

TORQUE

CARACTERISTICAS DE PERNOS Diám.Nom. PIPING 1/2" 3/4" 1" 1.1/4" 1.1/2" 2" 2.1/2" 3" 3.1/2" 4" 5" 6" 8" 10" 12" 14" 16" 18" 20" 24"

PIPING / EQUIPOS

CONTRATISTA

1500 Lbs.

Largo Cant. Diám. Largo Cant. 4.1/4" 4 3/4" 4.1/4" 4 4.1/2" 4 3/4" 4.1/2" 4 5" 4 7/8" 5" 4 5" 4 7/8" 5" 4 5.1/2" 4 1" 5.1/2" 4 5.3/4" 8 7/8" 5.3/4" 8 6.1/4" 8 1" 6.1/4" 8 5.3/4" 8 1.1/8" 7" 8 xxxx xx xxxx xxxx xx 6.3/4" 8 1.1/4" 7.3/4" 8 7.1/2" 8 1.1/21" 9.3/4" 8 7.3/4" 12 1.3/8" 10.1/4" 12 8.3/4" 12 1.5/8" 11.1/2" 12 9.1/4" 16 1.7/8" 13.1/2" 12 10" 20 2" 15" 16 10.3/4" 20 2.1/4" 16.1/4" 16 11.1/4" 20 2.1/2" 17.3/4" 16 13" 20 2.3/4" 19.1/2" 16 13.3/4" 20 3" 21.1/2" 16 17.1/4" 20 3.1/2" 24.1/4" 16

2500 Lbs. Diám. 3/4" 3/4" 7/8" 1" 1.1/8" 1" 1.1/8" 1.1/4" xxxx 1.1/2" 1.3/4" 2" 2" 2.1/2" 2.3/4" xxxx xxxx xxxx xxxx xxxx

Largo Cant. 4.3/4" 4 5" 4 5.1/2" 4 6" 4 6.3/4" 4 7" 8 7.3/4" 8 8.3/4" 8 xxxx xx 10" 8 12" 8 13.3/4" 8 15.1/4" 12 19.1/4" 12 21.1/4" 12 xxxx xx xxxx xx xxxx xx xxxx xx xxxx xx

Diám. Perno 3/8" 7/16" 1/2" 9/16" 5/8" 3/4" 7/8" 1" 1.1/8" 1.1/4" 1.3/8" 1.1/2" 1.5/8" 1.3/4" 1.7/8" 2" 2.1/4" 2.1/2" 2.3/4" 3"

Medida Llave 11/16" 3/4" 7/8" 15/16" 1.1/16" 1.1/4" 1.7/16" 1.5/8" 1.13/16" 2" 2.3/16" 2.3/8" 2.9/16" 2.3/4" 2.15/16" 3.1/8" 3.1/2" 3.7/8" 4.1/4" 4.5/8"

1. Valores basados en pernos lubricados con Chesterton tipo 772 o 735

(Lbs. Pie) Min.

Máx.

Ex. Fl.

30 45 60 100 160 250 370 500 700 800 1100 1500 1900 2300 3200 4250

60 90 120 200 320 500 740 1000 1400 1600 2200 3000 3800 4500 6400 8500

100 150 200 350 570 860 1280 1770 2400 3170 4100 5150 6400 7850 11340 14200

PARA TORQUES EN

2. Para Pernos A 193 B8: Reduzca el torque indicado tabla, multiplicando por un factor de 0.44 para pernos Cl1 y por 0.75 (LURGI) para Cl. 2 (endurecidos por deform.)

Kg. Mt.

0.8 para pernos A-453 Gr. 660 Cl A (LURGI) 3. Torques especificado, produce tensión teórica cerca de 3870/Kg/cm2, lo que llevaría a una tensión real de 3165 Kg/cm2, esto debido a pérdidas de fricción y relajación.

Nw.Mt. Multipl.

8 Pernos 12 Pernos 16 Pernos 20 Pernos 24 Pernos 28 Pernos 32 Pernos 36 Pernos 40 Pernos 44 Pernos 48 Pernos 56 Pernos 60 Pernos

Divida

1-5-3-7-2-6-4-8 1-5-9-3-7-11-2-6-10-4-8-12 1-9-5-13-3-11-7-15-2-10-6-14-4-12-8-16 1-13-5-17-9-3-15-7-19-11-2-14-6-18-10-4-16-8-20-12 1-9-17-5-13-21-3-11-19-7-15-23-2-10-18-6-14-22-4-12-20-8-16-24 1-23-27-9-5-18-14-3-22-26-7-12-16-19-2-24-28-10-6-17-13-4-21-25-8-11-15-20 1-24-27-14-5-9-29-22-3-18-26-15-8-12-32-20-2-23-28-13-6-10-30-21-4-17-25-16-7-11-31-19 1-34-17-13-29-5-25-9-15-3-31-15-35-7-24-28-12-22-2-33-18-14-30-3-26-10-20-4-32-16-36-8-23-27-11-21 1-40-36-32-28-24-20-16-12-8-3-37-33-29-25-21-17-13-9-5-2-39-35-31-27-23-19-15-11-7-4-38-34-30-26-22-18-14-10-6 1-41-17-13-25-37-5-29-34-9-19-3-24-43-15-39-7-28-31-12-35-22-2-42-18-14-26-38-6-30-33-10-20-4-23-44-16-40-8-27-32-11-36-21 1-25-17-13-44-40-5-36-32-9-24-28-3-45-19-15-41-37-7-33-29-12-48-22-2-26-18-14-43-39-6-35-31-10-23-27-4-46-20-16-42-38-8-34-30-11-47-21 1-31-48-9-35-23-39-5-43-20-53-16-50-29-3-25-33-12-48-22-37-7-42-17-51-13-55-28-2-32-47-10-36-24-40-6-44-19-54-15-49-30-4-26-34-11-45-21-38-8-41-15-52-14-56-27 1-55-28-39-9-43-17-35-5-31-50-13-58-21-54-3-60-25-46-16-42-30-8-34-20-48-12-38-24-52-6-56-27-40-10-44-18-36-6-32-49-14-57-22-53-4-59-26-45-15-41-29-7-33-1-47-11-37-23-51

7.2 1.35