Call us
9619440004

Monday-Saturday
08:00AM - 08:00PM

E-mail us
[email protected]

Weld Neck Flange

Weldneck flanges

Arcellor Controls has reputed name in metal industry as a Weld Neck Flange Manufacturers India with hogh quality material and standards. ANSI B16.5 Weld neck flanges have drilled wall thickness which is of equally same dimension existing for matching pipe. Bore will be larger if the pipe is lighter and opposite will be true if pipe is heavier and the bore will be small. There are two types of weld neck flanges, which are standard and long. Standard weld neck flanges are used in butt weld fittings. We are well known as Long weld neck flange manufacturers, used with vessel nozzles and equipment. ANSI B16.5 Reducing Weld Neck flanges are created to match the pipe’s inside diameter or fitting. The reason why it is bored to match is because it reduces the corrosion and turbulence that takes place inside of the pipe. Our offered Long weld neck flanges are called by this name due to their longer neck as compared to standard flanges. These Weld Neck Raised flanges are used in industrial applications as nozzles for columns or barrels. Arcellor Controls as well is significantly reduced in pipeline as bores of flange & pipe match. Due to these reasons weldneck flanges are chosen for critical applications where high pressure and hot-cold temperatures are prevalent. The different kinds of weldneck flanges available are:

Weld neck flanges – raised face
Weld neck flanges – flat face

Supplier Of BS10 Table E Weld Neck flange, Weld Neck Flange Schedule 10, Weld Neck Flange Flat Face Dimensions, Weld Neck Flange Raised Face Dimensions,Weld Neck Flange Suppliers UK

Weld Neck Flange Suppliers in UAE, Weld Neck Flange Malaysia, Weld Neck Ring Joint Flange, Weld Neck Flange Size chart, Weld Neck Flange Weight, Weld Neck Flange Schedule Chart

ANSI/ASME B16.5 Weld Neck Flange Specification

Dimensions	ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
Size	1/2″ (15 NB) to 48″ (1200NB)
Class	150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
DIN	DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636,DIN2637, DIN2638, DIN2673
BS	BS4504 , BS4504, BS1560, BS10
Coating/Surface Treatment	Antirust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized
Flange Face Type	Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Value Added Services	CNC Machining, Customised Flanges

Weld Neck Flange Material Specification

Stainless Steel Weld Neck Flanges : ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L Duplex & Super Duplex Steel Long Weld Neck Flanges : ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61 Carbon Steel Weld Neck Flanges : ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F706 Low Temperature Carbon Steel Long Weld Neck Flanges : ASTM A350, LF2, LF3 Alloy Steel Weld Neck Flanges : ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91 Copper Alloy Steel Weld Neck Flanges : ASTM SB 61 , SB62 , SB151 , SB152 UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200 Nickel Alloy Long Weld Neck Flanges : ASTM SB564, SB160, SB472, SB162 Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020)

ANSI/ASME B16.5 WELD NECK FLANGE DIMENSIONS, WELD NECK FLANGE SIZE CHART, WELD NECK FLANGE DIMENSIONS IN MM

ANSI B16.5 Long Weld Neck Flange Dimensions, PN16 Weld Neck Flange Dimensions, 4 Weld Neck flange Dimensions

ANSI B16.5 WNRF Flange Dimensions,Weld Neck Flange Raised Face Dimensions

Size in Inch	Size in mm	Outer Diameter	Flange Thickness	Hub OD	Weld Neck OD	Welding Neck Length	Bore	RF Diameter	RF Height	PCD	Weld Face
		A	B	C	D	E	F	G	H	I	J
1/2	15	90	9.6	30	21.3	46	Refer Note	34.9	2	60.3	1.6
3/4	20	100	11.2	38	26.7	51		42.9	2	69.9	1.6
1	25	110	12.7	49	33.4	54		50.8	2	79.4	1.6
1 1/4	32	115	14.3	59	42.2	56		63.5	2	88.9	1.6
1 1/2	40	125	15.9	65	48.3	60		73	2	98.4	1.6
2	50	150	17.5	78	60.3	62		92.1	2	120.7	1.6
2 1/2	65	180	20.7	90	73	68		104.8	2	139.7	1.6
3	80	190	22.3	108	88.9	68		127	2	152.4	1.6
3 1/2	90	215	22.3	122	101.6	70		139.7	2	177.8	1.6
4	100	230	22.3	135	114.3	75		157.2	2	190.5	1.6
5	125	255	22.3	164	141.3	87		185.7	2	215.9	1.6
6	150	280	23.9	192	168.3	87		215.9	2	241.3	1.6
8	200	345	27	246	219.1	100		269.9	2	298.5	1.6
10	250	405	28.6	305	273	100		323.8	2	362	1.6
12	300	485	30.2	365	323.8	113		381	2	431.8	1.6
14	350	535	33.4	400	355.6	125		412.8	2	476.3	1.6
16	400	595	35	457	406.4	125		469.9	2	539.8	1.6
18	450	635	38.1	505	457.2	138		533.4	2	577.9	1.6
20	500	700	41.3	559	508	143		584.2	2	635	1.6
24	600	815	46.1	663	610	151		692.2	2	749.3	1.6

Note: Welding Neck bore is derived from the pipe schedule

CLASS 300 WELD NECK FLANGE DIMENSIONS

Size in Inch	Size in mm	Outer Diameter	Flange Thickness	Hub OD	Weld Neck OD	Welding Neck Length	Bore	RF Diameter	RF Height	PCD	Weld Face
		A	B	C	D	E	F	G	H	I	J
1/2	15	95	12.7	38	21.3	51	Refer Note	34.9	2	66.7	1.6
3/4	20	115	14.3	48	26.7	56		42.9	2	82.6	1.6
1	25	125	15.9	54	33.4	60		50.8	2	88.9	1.6
1 1/4	32	135	17.5	64	42.2	64		63.5	2	98.4	1.6
1 1/2	40	155	19.1	70	48.3	67		73	2	114.3	1.6
2	50	165	20.7	84	60.3	68		92.1	2	127	1.6
2 1/2	65	190	23.9	100	73	75		104.8	2	149.2	1.6
3	80	210	27	117	88.9	78		127	2	168.3	1.6
3 1/2	90	230	28.6	133	101.6	79		139.7	2	184.2	1.6
4	100	255	30.2	146	114.3	84		157.2	2	200	1.6
5	125	280	33.4	178	141.3	97		185.7	2	235	1.6
6	150	320	35	206	168.3	97		215.9	2	269.9	1.6
8	200	380	39.7	260	219.1	110		269.9	2	330.2	1.6
10	250	445	46.1	321	273	116		323.8	2	387.4	1.6
12	300	520	49.3	375	323.8	129		381	2	450.8	1.6
14	350	585	52.4	425	355.6	141		412.8	2	514.4	1.6
16	400	650	55.6	483	406.4	144		469.9	2	571.5	1.6
18	450	710	58.8	533	457	157		533.4	2	628.6	1.6
20	500	775	62	587	508	160		584.2	2	685.8	1.6
24	600	915	68.3	702	610	167		692.2	2	812.8	1.6

Note: Welding Neck bore is derived from the pipe schedule

WELD NECK FLANGE CLASS 400 DIMENSIONS

Size in Inch	Size in mm	Outer Diameter	Flange Thickness	Hub OD	Weld Neck OD	Welding Neck Length	Bore	RF Diameter	RF Height	PCD	Weld Face
		A	B	C	D	E	F	G	H	I	J
1/2	15	95	14.3	38	21.3	52	Refer Note	34.9	7	66.7	1.6
3/4	20	115	15.9	48	26.7	57		42.9	7	82.6	1.6
1	25	125	17.5	54	33.4	62		50.8	7	88.9	1.6
1 1/4	32	135	20.7	64	42.2	67		63.5	7	98.4	1.6
1 1/2	40	155	22.3	70	48.3	70		73	7	114.3	1.6
2	50	165	25.4	84	60.3	73		92.1	7	127	1.6
2 1/2	65	190	28.6	100	73	79		104.8	7	149.2	1.6
3	80	210	31.8	117	88.9	83		127	7	168.3	1.6
3 1/2	90	230	35	133	101.6	86		139.7	7	184.2	1.6
4	100	255	35	146	114.3	89		157.2	7	200	1.6
5	125	280	38.1	178	141.3	102		185.7	7	235	1.6
6	150	320	41.3	206	168.3	103		215.9	7	269.9	1.6
8	200	380	47.7	260	219.1	117		269.9	7	330	1.6
10	250	445	54	321	273	124		323.8	7	387.4	1.6
12	300	520	57.2	375	323.8	137		381	7	450.8	1.6
14	350	585	60.4	425	355.6	149		412.8	7	514.4	1.6
16	400	650	63.5	483	406.4	152		469.9	7	571.5	1.6
18	450	710	66.7	533	457	165		533.4	7	628.6	1.6
20	500	775	69.9	587	508	168		584.2	7	685.8	1.6
24	600	915	76.2	702	610	175		692.2	7	812.8	1.6

Note: Welding Neck bore is derived from the pipe schedule

WELD NECK FLANGE DIMENSIONS CLASS 600

Size in Inch	Size in mm	Outer Diameter	Flange Thickness	Hub OD	Weld Neck OD	Welding Neck Length	Bore	RF Diameter	RF Height	PCD	Weld Face
		A	B	C	D	E	F	G	H	I	J
1/2	15	95	14.3	38	21.3	52	Refer Note	34.9	7	66.7	1.6
3/4	20	115	15.9	48	26.7	57		42.9	7	82.6	1.6
1	25	125	17.5	54	33.4	62		50.8	7	88.9	1.6
1 1/4	32	135	20.7	64	42.2	67		63.5	7	98.4	1.6
1 1/2	40	155	22.3	70	48.3	70		73	7	114.3	1.6
2	50	165	25.4	84	60.3	73		92.1	7	127	1.6
2 1/2	65	190	28.6	100	73	79		104.8	7	149.2	1.6
3	80	210	31.8	117	88.9	83		127	7	168.3	1.6
3 1/2	90	230	35	133	101.6	86		139.7	7	184.2	1.6
4	100	275	38.1	152	114.3	102		157.2	7	215.9	1.6
5	125	330	44.5	189	141.3	114		185.7	7	266.7	1.6
6	150	355	47.7	222	168.3	117		215.9	7	292.1	1.6
8	200	420	55.6	273	219.1	133		269.9	7	349.2	1.6
10	250	510	63.5	343	273	152		323.8	7	431.8	1.6
12	300	560	66.7	400	323.8	156		381	7	489	1.6
14	350	605	69.9	432	355.6	165		412.8	7	527	1.6
16	400	685	76.2	495	406.4	178		469.9	7	603.2	1.6
18	450	745	82.6	546	457	184		533.4	7	654	1.6
20	500	815	88.9	610	508	190		584.2	7	723.9	1.6
24	600	940	101.6	718	610	203		692.2	7	838.2	1.6

WELD NECK FLANGE DIMENSIONS CLASS 900

Size in Inch	Size in mm	Outer Diameter	Flange Thickness	Hub OD	Weld Neck OD	Welding Neck Length	Bore	RF Diameter	RF Height	PCD	Weld Face
		A	B	C	D	E	F	G	H	I	J
1/2	15	120	22.3	38	21.3	60	Refer Note	34.9	7	82.6	1.6
3/4	20	130	25.4	44	26.7	70		42.9	7	88.9	1.6
1	25	150	28.6	52	33.4	73		50.8	7	101.6	1.6
1 1/4	32	160	28.6	64	42.2	73		63.5	7	111.1	1.6
1 1/2	40	180	31.8	70	48.3	83		73	7	123.8	1.6
2	50	215	38.1	105	60.3	102		92.1	7	165.1	1.6
2 1/2	65	245	41.3	124	73	105		104.8	7	190.5	1.6
3	80	240	38.1	127	88.9	102		127	7	190.5	1.6
4	100	290	44.5	159	114.3	114		157.2	7	235	1.6
5	125	350	50.8	190	141.3	127		185.7	7	279.4	1.6
6	150	380	55.6	235	168.3	140		215.9	7	317.5	1.6
8	200	470	63.5	298	219.1	162		269.9	7	393.7	1.6
10	250	545	69.9	368	273	184		323.8	7	469.9	1.6
12	300	610	79.4	419	323.8	200		381	7	533.4	1.6
14	350	640	85.8	451	355.6	213		412.8	7	558.8	1.6
16	400	705	88.9	508	406.4	216		469.9	7	616	1.6
18	450	785	101.6	565	457	229		533.4	7	685.8	1.6
20	500	855	108	622	508	248		584.2	7	749.3	1.6
24	600	1040	139.7	749	610	292		692.2	7	901.7	1.6

CLASS 1500 WELD NECK FLANGE DIMENSIONS

Size in Inch	Size in mm	Outer Diameter	Flange Thickness	Hub OD	Weld Neck OD	Welding Neck Length	Bore	RF Diameter	RF Height	PCD	Weld Face
		A	B	C	D	E	F	G	H	I	J
1/2	15	120	22.3	38	21.3	60	Refer Note	34.9	7	82.6	1.6
3/4	20	130	25.4	44	26.7	70		42.9	7	88.9	1.6
1	25	150	28.6	52	33.4	73		50.8	7	101.6	1.6
1 1/4	32	160	28.6	64	42.2	73		63.5	7	111.1	1.6
1 1/2	40	180	31.8	70	48.3	83		73	7	123.8	1.6
2	50	215	38.1	105	60.3	102		92.1	7	165.1	1.6
2 1/2	65	245	41.3	124	73	105		104.8	7	190.5	1.6
3	80	265	47.7	133	88.9	117		127	7	203.2	1.6
4	100	310	54	162	114.3	124		157.2	7	241.3	1.6
5	125	375	73.1	197	141.3	156		185.7	7	292.1	1.6
6	150	395	82.6	229	168.3	171		215.9	7	317.5	1.6
8	200	485	92.1	292	219.1	213		269.9	7	393.7	1.6
10	250	585	108	368	273	254		323.8	7	482.6	1.6
12	300	675	123.9	451	323.8	283		381	7	571.5	1.6
14	350	750	133.4	495	355.6	298		412.8	7	635	1.6
16	400	825	146.1	552	406.4	311		469.9	7	704.8	1.6
18	450	915	162	597	457	327		533.4	7	774.7	1.6
20	500	985	177.8	641	508	356		584.2	7	831.8	1.6
24	600	1170	203.2	762	610	406		692.2	7	990.6	1.6

Note: Welding Neck bore is derived from the pipe schedule

CLASS 2500 WELD NECK FLANGE DIMENSIONS

Size in Inch	Size in mm	Outer Diameter	Flange Thickness	Hub OD	Weld Neck OD	Welding Neck Length	Bore	RF Diameter	RF Height	PCD	Weld Face
		A	B	C	D	E	F	G	H	I	J
1/2	15	135	30.2	43	21.3	73	Refer Note	34.9	7	88.9	1.6
3/4	20	140	31.8	51	26.7	79		42.9	7	95.2	1.6
1	25	160	35	57	33.4	89		50.8	7	108	1.6
1 1/4	32	185	38.1	73	42.2	95		63.5	7	130.2	1.6
1 1/2	40	205	44.5	79	48.3	111		73	7	146	1.6
2	50	235	50.9	95	60.3	127		92.1	7	171.4	1.6
2 1/2	65	265	57.2	114	73	143		104.8	7	196.8	1.6
3	80	305	66.7	133	88.9	168		127	7	228.6	1.6
4	100	355	76.2	165	114.3	190		157.2	7	273	1.6
5	125	420	92.1	203	141.3	229		185.7	7	323.8	1.6
6	150	485	108	235	168.3	273		215.9	7	368.3	1.6
8	200	550	127	305	219.1	318		269.9	7	438.2	1.6
10	250	675	165.1	375	273	419		323.8	7	539.8	1.6
12	300	760	184.2	441	323.8	464		381	7	619.1	1.6

Note: Welding Neck bore is derived from the pipe schedule

JIS Weld Neck Flange Dimensions

JIS 16K Weld Neck Flange Dimensions, JIS 20K Weld Neck Flange Dimensions

Nominal	Outside	Inside	Outside	Sectional Dimensions of Flange							Bolt Hole			Nominal	Approx.
Dia. of	Dia. of	Dia. of	Dia. of	t	T	Dia. of Hub		r	Dia. of	Dia. of	Bolt.	Number	Hole	Bolt	Weight
Flange	Steel	Flange	Flange			a	b		Face	Raised Face	Circle	of Bolt	Dia.	Size	(kg)
	Pipe	do	D			a	b		f	g	Dia	Holes	h		BL	SOH
10	17.3	17.8	90	12	16	26	28	4	1	46	65	4	15	M12	0.53	0.52
15	21.7	22.2	95	12	16	30	32	4	1	51	70	4	15	M12	0.6	0.58
20	27.2	27.7	100	14	20	38	42	4	1	56	75	4	15	M12	0.79	0.75
25	34	34.5	125	14	20	46	50	4	1	67	90	4	19	M16	1.22	1.16
32	42.7	43.2	135	16	22	56	60	5	2	76	100	4	19	M16	1.66	1.53
40	48.6	49.1	140	16	24	62	66	5	2	81	105	4	19	M16	1.79	1.64
50	60.5	61.1	155	16	24	76	80	5	2	96	120	8	19	M16	2.09	1.83
65	76.3	77.1	175	18	26	94	98	5	2	116	140	8	19	M16	3.08	2.58
80	89.1	90	200	20	28	108	112	6	2	132	160	8	23	M20	4.41	3.61
-90	101.6	102.6	210	20	30	120	124	6	2	145	170	8	23	M20	4.92	3.89
100	114.3	115.4	225	22	34	134	138	6	2	160	185	8	23	M20	6.29	4.87
125	139.8	141.2	270	22	34	164	170	6	2	195	225	8	25	M22	9.21	7.09
150	165.2	166.6	305	24	38	196	202	6	2	230	260	12	25	M22	12.7	9.57
200	216.3	218	350	26	40	244	252	6	2	275	305	12	25	M22	18.4	12
250	267.4	269.5	430	28	44	304	312	6	2	345	380	12	27	M24	30.4	20.1
300	318.5	321	480	30	48	354	364	8	3	395	430	16	27	M24	40.5	24.3
350	355.6	358.1	540	34	52	398	408	8	3	440	480	16	33	M30×3	57.5	34.4
400	406.4	409	605	38	60	446	456	10	3	495	540	16	33	M30×3	81.7	47.4
450	457.2	460	675	40	64	504	514	10	3	560	605	20	33	M30×3	107	61.8
500	508	511	730	42	68	558	568	10	3	615	660	20	33	M30×3	132	73.7
-550	558.8	562	795	44	70	612	622	10	3	670	720	20	39	M36×3	163	87.9
600	609.6	613	845	46	74	666	676	10	3	720	770	24	39	M36×3	192	98.4
650	660.4	664	895	48	77	704	726	10	5	770	820	24	39	M36×3	–	–
700	711.2	715	960	50	80	754	776	10	5	820	875	24	42	M39×3	–	–
750	762	766	1020	52	83	806	832	10	5	880	935	24	42	M39×3	–	–
800	812.8	817	1085	54	86	865	885	10	5	930	990	24	48	M45×3	–	–
850	863.6	868	1135	56	89	916	936	10	5	980	1040	24	48	M45×3	–	–
900	914.4	919	1185	58	93	968	986	10	5	1030	1090	28	48	M45×3	–	–
1000	1016	1021	1320	62	99	1070	1098	12	5	1140	1210	28	56	M52×3	–	–
1100	1117.6	1123	1420	66	105	1180	1200	12	15	1240	1310	32	56	M52×3	–	–
1200	1219.2	1225	1530	70	112	1282	1302	12	5	1350	1420	32	56	M52×3	–	–
1300	1320.8	1326	1645	74	–	–	–	–	5	1450	1530	32	62	M56×3	–	–
1350	1371.6	1377	1700	76	–	–	–	–	5	1510	1590	32	62	M56×3	–	–
1400	1422.4	1428	1755	78	–	–	–	–	5	1560	1640	36	62	M56×3	–	–
1500	1524	1529	1865	80	–	–	–	–	5	1670	1750	36	62	M56×3	–	–

ANSI B16.5 Weld Neck Flange Schedule Chart, Weld Neck Flange Thickness Chart

WELDING NECK FLANGES BORES (in inches)
Nom Pipe Size	Outside Diam	Sched 10	Sched 20	Sched 30	Std. Wall	Sched 40	Sched 60	Extra Strong	Sched 80	Sched 100	Sched 120	Sched 140	Sched 160	Double Extra Strong
1/2”	0.840	0.674	–	–	0.622	0.622	–	0.546	0.546	–	–	–	0.464	0.252
3/4”	1.050	0.884	–	–	0.824	0.824	–	0.742	0.742	–	–	–	0.612	0.434
1”	1.315	1.097	–	–	1.049	1.049	–	0.957	0.957	–	–	–	0.815	0.599
1.1/4”	1.660	1.442	–	–	1.380	1.380	–	1.278	1.278	–	–	–	1.160	0.896
1.1/2”	1.900	1.682	–	–	1.610	1.610	–	1.500	1.500	–	–	–	1.338	1.100
2”	2.375	2.157	–	–	2.067	2.067	–	1.939	1.939	–	–	–	1.687	1.503
2.1/2”	2.875	2.635	–	–	2.469	2.469	–	2.323	2.323	–	–	–	2.125	1.771
3”	3.500	3.260	–	–	3.068	3.068	–	2.900	2.900	–	–	–	2.624	2.300
3-1/2”	4.000	3.760	–	–	3.548	3.548	–	3.364	3.364	–	–	–	–	2.728
4”	4.500	4.260	–	–	4.026	4.026	–	3.826	3.826	–	3.624	–	3.438	3.152
5”	5.563	5.295	–	–	5.047	5.047	–	4.813	4.813	–	4.563	–	4.313	4.063
6”	6.625	6.357	–	–	6.065	6.065	–	5.761	5.761	–	5.501	–	5.187	4.897
8”	8.625	8.329	8.125	8.071	7.981	7.981	7.813	7.625	7.625	7.437	7.187	7.001	6.813	6.875
10”	10.750	10.420	10.250	10.136	10.020	10.020	9.750	9.750	9.562	9.312	9.062	8.750	8.500	8.750
12”	12.750	12.390	12.250	12.090	12.000	11.938	11.626	11.750	11.374	11.062	10.750	10.500	10.126	10.750
14”	14.000	13.500	13.376	13.250	13.250	13.124	12.812	13.000	12.500	12.124	11.814	11.500	11.188	–
16”	16.000	15.500	15.376	15.250	15.250	15.000	14.688	15.000	14.312	13.938	13.564	13.124	12.812	–
18”	18.000	17.500	17.376	17.124	17.250	16.876	16.500	17.000	16.124	15.688	15.250	14.876	14.438	–
20”	20.000	19.500	19.250	19.000	19.250	18.812	18.376	19.000	17.938	17.438	17.000	16.500	16.062	–
24”	24.000	23.500	23.250	22.876	23.250	22.624	22.062	23.000	21.562	20.938	20.376	19.876	19.312	–
30”	30.000	29.376	29.000	28.750	29.250	–	–	29.000	–	–	–	–	–	–
36”	36.000	35.376	35.000	34.750	35.250	34.500	–	35.000	–	–	–	–	–	–
42”	42.000	–	–	–	41.250	–	–	41.000	–	–	–	–	–	–

Weld Neck Flange Weight, Weld Neck Flange Weight in KG

ANSI B16.5 WELD NECK FLANGES WEIGHT (KGS)
Nom Pipe Size	150#			300#			600#			900#			1500#			2500#
	WN	S/O	B/K	WN	S/O	B/K	WN	S/O	B/K	WN	S/O	B/K	WN	S/O	B/K	WN	S/O	B/K
1/2”	0.7	0.4	0.5	0.8	0.7	0.8	0.9	0.8	0.8	2.1	1.8	1.9	2.1	1.8	1.9	3.2	3	3
3/4”	0.8	0.7	0.8	1.4	1.2	1.2	1.6	1.4	1.4	2.7	2.4	2.7	2.7	2.4	2.7	3.6	4	4.5
1”	1.1	0.8	0.9	1.7	1.4	1.5	1.9	1.7	1.7	3.9	3.6	3.7	3.9	3.6	3.7	5.4	5	5
1.1/4”	1.5	1.2	1.3	2.2	1.8	2	2.6	2.1	2.4	4.5	4.1	4.3	4.5	4.1	4.3	7.8	8	8
1.1/2”	1.8	1.4	1.6	3.2	2.7	2.9	3.6	3.1	3.4	6.2	5.4	5.9	6.2	5.4	5.9	11.5	11	11
2”	2.7	2.2	2.6	3.6	3.2	3.5	4.7	3.9	4.4	11.3	10.5	11.3	11.3	10.5	11.3	19	17	17
2.1/2”	4.4	3.5	4.1	5.4	4.5	5.3	4.8	5.4	6.8	16.3	15.8	16	16.3	15.8	16	24	25	25
3”	5.2	3.8	5.1	7.3	5.9	7.2	8.7	7.3	8.9	15	12.3	16.8	21	21.5	19.5	42.6	38	39
3-1/2”	6.4	5	6.5	8.9	7.5	9.2	11.6	9	12.7	–	–	–	–	–	–	–	–	–
4”	7.5	5.6	7.5	11.8	10	12.2	18.4	16.5	18.6	24	23.2	24.5	31.8	31	33	64	58	60
5”	9.2	6.5	9.2	16	12.5	16	31	28.5	30.8	38.5	37.5	39.5	59	58.8	60	111	95	101
6”	11.0	8.1	11.8	20.2	16.5	22	37	36.2	38	50	48.3	51.5	72	74	75	171	146	156
8”	18.4	13	20.4	31.2	25.5	36	54.5	51.5	62.2	85	75	89	124	112	125	261	220	242
10”	25.5	18.4	31	44.3	35	55	98.5	76.2	102	123	110	131	207	184	215	485	420	465
12”	37	28.5	47	63.5	52	82.5	105	89.5	132	168	146	187	306	264	316	698	590	665
14”	51	37.5	60	86	73	108	150	102	158	198	172	224	416	–	–	–	–	–
16”	61.5	44.5	61	112	88	139	177	150	225	225	192	259	567	–	–	–	–	–
18”	71.5	54	93	141	115	178	228	180	285	318	272	383	736	–	–	–	–	–
20”	85	72	127	173	139	228	285	231	365	376	330	482	929	–	–	–	–	–
24”	119	95	190	248	212	350	372	330	532	680	632	905	1504	–	–	–	–	–

ANSI B16.5 Weld Neck Flange Tolerances

Dimension	Flange	Tolerance
A	Outside Diameter	When O.D. is 24″ or less: ±1/16″ (1.6mm) When O.D. is over 24″: ±1/8″ (3.2mm)
D	Inside Diameter	10″ and smaller: ±1/32″ (0.8mm) 12″ thru 18″: +1/8″ (3.2mm) 20″ and larger: -1/16″ (1.6mm)
B	Diameter of contact face	1/16″ raised face: ±1/32″ (0.8mm) 1/4″ Raised Face, Tongue & Groove (male & female): ±1/64″ (0.4mm)
J	Diameter of hub at base	When hub base is 24″ or smaller: ±1/16″ (1.6mm) When hub base is over 24″: ±1/8″ (3.2mm)
H	Diameter of hub at point of welding	5″ and smaller: +3/32″ (2.4mm), -1/32″ (0.8mm) 6″ and larger: +5/32″ (4.0mm), -1/32 (0.8mm)
P	Drilling	Bolt circle: ±1/16″ (1.6mm) Bolt hole spacing: ±1/32″ (0.8mm)
	Eccentricity of bolt circle with respect to facing	2 1/2″ and smaller ±1/32″ (0.8mm) max. 3″ and larger ±1/16″ (1.6mm) max.
C	Thickness	18″ and smaller: ±1/8″ (3.2mm), -0″ 20″ and larger: ±3/16″ (4.8mm), -0″
K	Length of hub	10″ and smaller: ±1/16″ (1.6mm) 12″ and larger: ±1/8″ (3.2mm)

Weld Neck Flange Uses

Our offered ANSI B16.5 Weld neck flanges are used in various industrial applications where the conditions are critical and severe. Some of these conditions include high temperature, high pressure, wide fluctuations in temperature and pressure, fluids that are hazardous and volatile, and temperatures in the sub-zero range.

ASME B16.5 Weld Neck Flange Price List

Long Weld Neck Flange Price: $15.45 / each ANSI B16.5 WNRF Flange Price: $20.14 / each Reducing Weld Neck Flange Price: $18.35 / each

ASME/ANSI B16.5 Weld Neck Flange Supplying to Following Regions & Countries:

AFRICA Nigeria Algeria Angola Tanzania Libya Egypt Sudan Equatorial Guinea The Republic Of Congo Gabon NORTH AMERICA Usa Canada Mexico Costa Rica Trinidad And Tobago Jamaica Denmark

MIDDLE EAST ASIA Saudi Arabia Iran Iraq Uae Qatar Bahrain Oman Kuwait Turkey Jordan SOUTH AMERICA Argentina Bolivia Brazil Chile Venezuela Colombia Ecuador Guyana Paraguay Uruguay

EUROPE Norway Germany France Italy Uk Spain Netherland Belgium Greece Czech Republic Portugal Hungary SOUTH AFRICA

ASIA India Singapore Malaysia Indonesia Thailand Vietnam South Korea Japan Sri Lanka Maldives Bangladesh Mayanmar Taiwan Cambodia

Call Now

Weld Neck Flange

Weld Neck Flange

Our Coverage

You may also Like