Fittings End 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.

Beveled 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".

Welding Bevel acc.to ASME / ANSI B16.9 and ASME / ANSI B16.28

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

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

Nominal pipe DN size	Outside Diameter at Bevel				Center to End
	D1		D2		C	M
	Series A	Series B	Series A	Series B
20×15	26.9	25	21.3	18	29	29
25×20 25×15	33.7 33.7	32 32	26.9 21.3	25 18	38 38	38 38
32×25 32×20 32×15	42.4 42.4 42.4	38 38 38	33.7 26.9 21.3	32 25 18	48 48 48	48 48 48
40×32 40×25 40×20 40×15	48.3 48.3 48.3 48.3	45 45 45 45	42.4 33.7 26.7 21.3	38 32 25 18	57 57 57 57	57 57 57 57
50×40 50×32 50×25 50×20	60.3 60.3 60.3 60.3	57 57 57 57	48.3 42.4 33.7 26.9	45 38 32 25	64 64 64 64	60 57 51 44
65×50 65×40 65×32 65×25	76.1(73) 76.1(73) 76.1(73) 76.1(73)	76 76 76 76	60.3 48.3 42.4 33.7	57 45 38 32	76 76 76 76	70 67 64 57
80×65 80×50 80×40 80×32	88.9 88.9 88.9 88.9	89 89 89 89	76.1(73) 60.3 48.3 42.4	76 57 45 38	86 86 86 86	83 76 73 70
90×80 90×65 90×50 90×40	101.6 101.6 101.6 101.6	- - - -	88.9 76.1(73) 60.3 48.3	- - - -	95 95 95 95	92 89 83 79
100×90 100×80 100×65 100×50 100×40	114.3 114.3 114.3 114.3 114.3	- 108 108 108 108	101.6 88.9 76.1(73) 60.3 48.3	- 89 76 57 45	105 105 105 105 105	102 98 95 89 86
125×100 125×90 125×80 125×65 125×50	139.7 139.7 139.7 139.7	133 - 133 133 133	114.3 101.6 88.9 76.1(73) 60.3	108 - 89 76 57	124 124 124 124 124	117 114 111 108 105
150×125 150×100 150×90 150×80 150×65	168.3 168.3 168.3 168.3 168.3	159 159 - 159 159	139.7 114.3 101.6 88.9 76.1(73)	133 108 - 89 76	143 143 143 143 143	137 130 127 124 121
200×150 200×125 200×100 200×90	219.1 219.1 219.1 219.1	219 219 219 -	168.3 139.7 114.3 101.6	159 133 108 -	178 178 178 178	168 162 156 152
200×200 200×150 200×125 200×100	273.0 273.0 273.0 273.0	273 273 273 273	219.1 168.3 139.7 114.3	219 159 133 108	216 216 216 216	208 194 191 184
300×250 300×200 300×150	323.9 323.9 323.9	325 325 325	273.0 219.1 168.3	273 219 159	254 254 254	241 229 219
300×125	323.9	325	139.7	133	254	216
350×300 350×250 350×200 350×150	355.6 355.6 355.6 355.6	377 377 377 377	323.9 273.0 219.1 168.3	325 273 219 159	279 279 279 279	270 257 248 238
400×350 400×300 400×250 400×200 400×150	406.4 406.4 406.4 406.4 406.4	426 426 426 426 426	355.6 323.9 273.0 219.1 168.3	377 325 273 219 159	305 305 305 305 305	305 295 283 273 264
450×400 450×350 450×300 450×250 450×200	457.2 457.2 457.2 457.2 457.2	478 478 478 478 478	406.4 355.6 323.9 273.0 219.1	426 377 325 273 219	343 343 343 343 343	330 330 321 308 298
500×450 500×100 500×350 500×300 500×250 500×200	508.0 508.0 508.0 508.0 508.0 508.0	529 529 529 529 529 529	457.2 406.4 355.6 323.9 273.0 219.1	478 426 377 325 273 219	381 381 381 381 381 381	368 356 356 346 333 324
550×500 550×450 550×400	559 559 559	- - -	508 457 406	- - -	419 419 419	406 394 381
600×550 600×550 600×450	610 610 610	- 630 630	559 508 457	- 530 480	432 432 432	432 432 419
650×600 650×550 650×500	660 660 660	- - -	610 559 508	- - -	495 495 495	483 470 457
700×650 700×600 700×550	711 711 711	- 720 -	660 610 559	- 630 -	521 521 521	521 508 495
750×700 750×650 750×600	762 762 762	- - -	711 660 610	- - -	559 559 559	546 546 533
800×750 800×700 800×650	813 813 813	- 820 -	762 711 660	- 720 -	597 597 597	584 572 572
850×800 850×750 850×700	864 864 864	- - -	813 762 711	- - -	635 635 635	622 610 597
900×850 900×800 900×750	914 914 914	- 920 -	864 813 762	- 820 -	673 673 673	660 648 635
950×900 950×850 950×800	965 965 965	- - -	914 864 813	- - -	711 711 711	711 698 686
1000×950 1000×900 1000×8500	1016 1016 1016	- 1020 -	965 914 864	- 920 -	749 749 749	749 737 724
1000×1000 1050×950 1050×900	1067 1067 1067	- - -	1016 965 914	- - -	762 762 762	711 711 711
1100×1050 1100×1000 1100×950	1118 1118 1118	- 1120 -	1067 1016 965	- 1020 -	813 813 813	762 749 737
1150×1100 1150×1050 1150×1000	1168 1168 1168	- - -	1118 1067 1016	- - -	851 851 851	800 787 775
1200×1150 1200×1100 1200×1050	1220 1220 1220	- 1220 -	1168 1118 1067	- 1120 -	889 889 889	838 838 813

Nominal pipe size		Outside Diameter at Bevel		Center to End
		D		C	M
DN	INCH	Series A	Series B
15	1/2	21.3	18	25
20	3/4	26.9	25	29
25	1	33.7	32	38
32	11/4	42.4	38	48
40	11/2	48.3	45	57
50	2	60.3	57	64
65	21/2	76.1(73)	76	76
80	3	88.9	89	86
90	31/2	101.6	―	95
100	4	114.3	108	105
125	5	139.7	133	124
150	6	168.3	159	143
200	8	219.1	219	178
250	10	273.0	273	216
300	12	323.9	325	254
350	14	355.6	377	279
400	16	406.4	426	305
450	18	457.2	478	343
500	20	508.0	529	381
550	22	559	―	419
600	24	610	630	432
650	26	660	―	495
700	28	711	720	521
750	30	762	―	559
800	32	813	820	597
850	34	864	―	635
900	36	914	920	673
950	38	965	―	711
1000	40	1016	1020	749
1050	42	1067	―	762	711
1100	44	1118	1120	813	762
1150	46	1168	―	851	800
1200	48	1220	1220	889	838