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  • ANSI B16.5 – ½” – 24” Forged Flanges Weight Chart

ANSI B16.5 – ½” – 24” Forged Flanges Weight Chart

CLASSNominal Pipe SizeSlip OnThreadedSocket WeldLap JointBlindWeld Neck
150 lb½112122
¾222222
1222223
333333
333344
2555556
8888710
39999911.5
111211111312
4131313131716.5
5151515152021
6191919192726
8303030304742
10434343437054
126464646412388
14909090105140114
161069898140180140
18130130130160220165
20165165165195285197
22185185185245355225
24220220220275430268
CLASSNominal Pipe SizeSlip OnThreadedSocket WeldLap JointBlindWeld Neck
300 lb½223222
¾333333
1333344
4.54.544.565
6.56.566.577
2777789
101010101212
313141314.51618
171717172120
423.52422242826.5
5293128283736
6393939395045
8585858588169
1081818191124100
12115115115140185142
14165165165190250206
16210220190234315250
18253280250305414320
20315325315375515400
22370370370435640465
24490490475550800580
CLASSNominal Pipe SizeSlip OnThreadedSocket WeldLap JointBlindWeld Neck
400 lb½222223
¾333333.5
13.53.53.53.544
4.54.54.54.564.5
6.56.56.56.588
288881010
121212111514
3151515142018
212121202926
4262626253335
5313131294443
6444444426157
86767676410089
10919191110155125
12130130130152226175
14191191191210310233
16253253253280398295
18310310310345502360
20378378378420621445
22405405405455720505
24539539539615936640
CLASSNominal Pipe SizeSlip OnThreadedSocket WeldLap JointBlindWeld Neck
600 lb½222233
¾333344
1444444
555566
777788
299991012
131313121518
3161616152023
212121202926
4373737364142
5636363636868
6808080788681
8115115115112140120
10177177177195231190
12215215215240295226
14259259259290378347
16366366366400527481
18476476476469665555
20612612612604855690
225905905906701000720
248768768768661250977
CLASSNominal Pipe SizeSlip OnThreadedSocket WeldLap JointBlindWeld Neck
900 lb½666647
¾666667
17.57.57.57.598.5
101010101010
141414141414
2222222212524
313131253231
3363636293536
4535353515453
5838383818786
6110110110105115110
8172172172190200187
10245245245277290268
12326326326371415372
14400400400415520562
16459459459488619685
18647647647670880924
2079279279286811071164
24148014801480165920992107
CLASSNominal Pipe SizeSlip OnThreadedSocket WeldLap JointBlindWeld Neck
1500 lb½666647
¾666667
1888899
101010101010
141414141414
2252525252525
363636353536
3484848474848
4737373757373
5132132132140140132
6165165165170160165
8260260260286302275
10436436436485510455
12667667667749775690
14940940940890975940
16125012501250125013001250
18162516251625147517501625
20205020502050177522252050
24282528252825282536253325
CLASSNominal Pipe SizeSlip OnThreadedSocket WeldLap JointBlindWeld Neck
2500 lb½….7….778
¾….9….8109
1….12….121213
….18….171820
….25….242528
2….38….373942
….55….535652
3….83….808694
4….127….122133146
5….210….204223244
6….323….314345378
8….485….471533576
10….925….89710251068
12….1300….126214641608

 

ANSI B16.5 Weights PDF (for printing).