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Fittings beveling

Fittings Beveling

In the behavior, we make beveling after shot blasting, bevel ends are fully machined by advanced equipment Double Beveling Machine ensure the height, length, thickness, O.D. and I.D. are all qualified.

Welding Bevel acc. to

pipe elbow little
  • ASME B16.9, Factory-Made Wrought Steel Buttwelding Fittings
  • ASME B16.28, Buttwelding Short Radius Elbows and Returns
  • ANSI/ASME B16.25, Buttwelding Ends
  • MSS SP-97, Socket Welding, Threaded, and Buttwelding Ends

The ends of all buttweld fittings are bevelled, exceeding wall thickness 4 mm for austenitic stainless steel, or 5 mm for ferritic stainless steel. The shape of the bevel depending upon the actual wall thickness. This bevelled ends are needed to be able to make a “Butt weld”.

ASME B16.25 covers the preparation of buttwelding ends of piping components to be joined into a piping system by welding. It includes requirements for welding bevels, for external and internal shaping of heavy-wall components, and for preparation of internal ends (including dimensions and dimensional tolerances).

Our in-hourse R&D team developed bevel ends equipment are good using in thickness 2mm to 20mm pipe fittings, guarantee high efficiency and high quality.

pipe fittings welded end

These weld edge preparation requirements are also incorporated into the ASME standards (e.g., B16.9, B16.5, B16.34).

These weld edge preparation requirements are also incorporated into the ASME standards (e.g., B16.9, B16.5, B16.34).

Nominal wall Thickness : tEnd Preparation
t<5mm (for austenitic alloy steelCut square or slightly chamfer
t<4mm)at manufacturer ' s option
5 (4Plain Bevel as in sketch ( a ) above
t>22mmCompound Bevel as in sketch ( b ) above

Nominal pipeOutside Diameter at BevelCenter to End
DN sizeD1D2CM
Series ASeries BSeries ASeries B
20×1526.92521.3182929
25×2033.73226.9253838
25×1533.73221.3183838
32×2542.43833.7324848
32×2042.43826.9254848
32×1542.43821.3184848
40×3248.34542.4385757
40×2548.34533.7325757
40×2048.34526.7255757
40×1548.34521.3185757
50×4060.35748.3456460
50×3260.35742.4386457
50×2560.35733.7326451
50×2060.35726.9256444
65×5076.1(73)7660.3577670
65×4076.1(73)7648.3457667
65×3276.1(73)7642.4387664
65×2576.1(73)7633.7327657
80×6588.98976.1(73)768683
80×5088.98960.3578676
80×4088.98948.3458673
80×3288.98942.4388670
90×80101.6-88.9-9592
90×65101.6-76.1(73)-9589
90×50101.6-60.3-9583
90×40101.6-48.3-9579
100×90114.3-101.6-105102
100×80114.310888.98910598
100×65114.310876.1(73)7610595
100×50114.310860.35710589
100×40114.310848.34510586
125×100139.7133114.3108124117
125×90139.7-101.6-124114
125×80139.713388.989124111
125×65139.713376.1(73)76124108
125×5013360.357124105
150×125168.3159139.7133143137
150×100168.3159114.3108143130
150×90168.3-101.6-143127
150×80168.315988.989143124
150×65168.315976.1(73)76143121
200×150219.1219168.3159178168
200×125219.1219139.7133178162
200×100219.1219114.3108178156
200×90219.1-101.6-178152
200×200273273219.1219216208
200×150273273168.3159216194
200×125273273139.7133216191
200×100273273114.3108216184
300×250323.9325273273254241
300×200323.9325219.1219254229
300×150323.9325168.3159254219
300×125323.9325139.7133254216
350×300355.6377323.9325279270
350×250355.6377273273279257
350×200355.6377219.1219279248
350×150355.6377168.3159279238
400×350406.4426355.6377305305
400×300406.4426323.9325305295
400×250406.4426273273305283
400×200406.4426219.1219305273
400×150406.4426168.3159305264
450×400457.2478406.4426343330
450×350457.2478355.6377343330
450×300457.2478323.9325343321
450×250457.2478273273343308
450×200457.2478219.1219343298
500×450508529457.2478381368
500×100508529406.4426381356
500×350508529355.6377381356
500×300508529323.9325381346
500×250508529273273381333
500×200508529219.1219381324
550×500559-508-419406
550×450559-457-419394
550×400559-406-419381
600×550610-559-432432
600×550610630508530432432
600×450610630457480432419
650×600660-610-495483
650×550660-559-495470
650×500660-508-495457
700×650711-660-521521
700×600711720610630521508
700×550711-559-521495
750×700762-711-559546
750×650762-660-559546
750×600762-610-559533
800×750813-762-597584
800×700813820711720597572
800×650813-660-597572
850×800864-813-635622
850×750864-762-635610
850×700864-711-635597
900×850914-864-673660
900×800914920813820673648
900×750914-762-673635
950×900965-914-711711
950×850965-864-711698
950×800965-813-711686
1000×9501016-965-749749
1000×90010161020914920749737
1000×85001016-864-749724
1000×10001067-1016-762711
1050×9501067-965-762711
1050×9001067-914-762711
1100×10501118-1067-813762
1100×10001118112010161020813749
1100×9501118-965-813737
1150×11001168-1118-851800
1150×10501168-1067-851787
1150×10001168-1016-851775
1200×11501220-1168-889838
1200×11001220122011181120889838
1200×10501220-1067-889813

Nominal pipe sizeOutside Diameter at BevelCenter to End
DCM
DNINCHSeries ASeries B
151/221.31825
203/426.92529
25133.73238
321 1/442.43848
401 1/248.34557
50260.35764
652 1/276.1(73)7676
80388.98986
903 1/2101.695
1004114.3108105
1255139.7133124
1506168.3159143
2008219.1219178
25010273273216
30012323.9325254
35014355.6377279
40016406.4426305
45018457.2478343
50020508529381
55022559419
60024610630432
65026660495
70028711720521
75030762559
80032813820597
85034864635
90036914920673
95038965711
10004010161020749
1050421067762711
11004411181120813762
1150461168851800
12004812201220889838