ASME B16.5 Flanges, ANSI B16.5 Flange in India, United States, UAE

Name: Omaa Forged - Industrial Flanges and Round Bars
Rating: 5

ASME B16.5 Flanges

ASME B16.5 Socket Weld Flanges, ASME B16.5 Orifice Flange, ASME B16.5 weld neck Flange, ASME B16.5 slip on Flanges Supplier, ANSI B16.5 Threaded Flanges, ASME B16.5 Spectacle blind Flanges Manufacturer in India.

ANSI, ASME, and ASA B16.5 are all standards that specify the dimensions and technical requirements for flanges used in piping systems. Here is a brief overview of each standard:

ANSI B16.5: The American National Standards Institute (ANSI) B16.5 standard covers steel pipe flanges and flanged fittings from NPS 1/2 through NPS 24. It includes requirements for flange facings, bolting, gaskets, and tolerances.

ASME B16.5: The American Society of Mechanical Engineers (ASME) B16.5 standard is identical to ANSI B16.5 and covers the same range of sizes and types of flanges.

ASA B16.5: The American Standards Association (ASA) B16.5 standard is the precursor to ANSI B16.5 and is now obsolete. However, the term “ASA” is still sometimes used colloquially to refer to flanges that comply with ANSI B16.5.

All three standards specify flange dimensions in inches and use the same pressure-temperature ratings for class 150, 300, 600, 900, 1500, and 2500. However, there are some minor differences in the dimensions of the flange faces and bolt circles between the standards. It is important to use the correct standard when selecting flanges for a piping system to ensure proper compatibility and performance.

ASME B16.5 Flanges, ANSI B16.5 Flange in India, United States, UAE

Specifications Dimensions Weight Chart Tolerances Pressure Rating Applications

ASME B16 5 Ring Type Joint Orifice Flange, ASME B16.5 Class 300 Flanges, ANSI B16.5 Class 150 Flanges, Ready Stock of ASME B16.5 Socket Weld Flange, Suppliers of ASA B16.5 Welding Neck Flange, Check Sizes And Dimensions Of ASME B16.5 Forged Flanges.

ASME B16.5 Flange Specifications

Size Range

1/2" (15 NB) to 48" (1200NB) DN10~DN5000

Class / Pressure Rating

150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.

Standards / Dimensions

ANSI/ASME B16.5, B16.36, B16.48, BS4504, BS 10, EN-1092, DIN, BS, GOST, MSS SP-44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605

Connection Type

Ring Joint Flange (RTJ), Flat Face Flange (FF), Raised Face Flange (RF), Male and Female Flange (M & F), Lap Joint Flange, Large and Small Tongue-and-Groove Flange (T & G)

ASME B16.5 Flanges Dimensions

ASME B16.5 Flanges Class 150	ASME B16.5 Flanges Class 300
ASME B16.5 Flanges Class 400	ASME B16.5 Flanges Class 600
ASME B16.5 Flanges Class 900	ASME B16.5 Flanges Class 1500
ASME B16.5 Flanges Class 2500

ASME B16.5 CLASS 150 RTJ FACING FLANGES DIMENSIONS AND TECHNICAL DRAWINGS

NPS	N	P	E	F
1	15	47.63	6.35	8.74
1-1/4	17	57.15	6.35	8.74
1-1/2	19	65.07	6.35	8.74
2	22	82.55	6.35	8.74
2-1/2	25	101.60	6.35	8.74
3	29	114.30	6.35	8.74
3-1/2	33	131.78	6.35	8.74
4	36	149.23	6.35	8.74
5	40	171.45	6.35	8.74
6	43	193.68	6.35	8.74
8	48	247.65	6.35	8.74
10	52	304.80	6.35	8.74
12	56	381.00	6.35	8.74
14	59	396.88	6.35	8.74
16	64	454.03	6.35	8.74
18	68	517.53	6.35	8.74
20	72	558.80	6.35	8.74
22	80	615.95	6.35	8.74
24	76	673.10	6.35	8.74

NPS	r	G	h	L
1	0.8	63.5	4	75
1-1/4	0.8	73.0	4	85
1-1/2	0.8	82.5	4	85
2	0.8	102	4	95
2-1/2	0.8	121	4	100
3	0.8	133	4	100
3-1/2	0.8	154	4	100
4	0.8	171	4	100
5	0.8	194	4	110
6	0.8	219	4	115
8	0.8	273	4	120
10	0.8	330	4	125
12	0.8	406	4	135
14	0.8	425	3	145
16	0.8	483	3	145
18	0.8	546	3	160
20	0.8	597	3	170
22	0.8	648	3	185
24	0.8	711	3	185

ASME B16.5 CLASS 300 RTJ FACING FLANGES DIMENSIONS AND TECHNICAL DRAWINGS

NPS	Groove No.	P	E	F
1/2	11	34.14	5.54	7.14
3/4	13	42.88	6.35	8.74
1	16	50.80	6.35	8.74
1-1/4	18	60.33	6.35	8.74
1-1/2	20	68.27	6.35	8.74
2	23	82.55	7.92	11.91
2-1/2	26	101.60	7.92	11.91
3	30	117.48	7.92	11.91
3-1/2	34	131.78	7.92	11.91
4	37	149.23	7.92	11.91
5	41	180.98	7.92	11.91
6	45	211.12	7.92	11.91
8	49	269.88	7.92	11.91
10	53	323.85	7.92	11.91
12	57	381.00	7.92	11.91
14	61	419.10	7.92	11.91
16	65	469.90	7.92	11.91
18	69	533.40	7.92	11.91
20	73	584.20	9.53	13.49
22	81	635.00	11.13	15.09
24	77	629.15	11.13	16.66

NPS	r	G	h	L
1/2	0.8	51.0	3	75
3/4	0.8	63.5	4	90
1	0.8	70.0	4	90
1-1/4	0.8	79.5	4	95
1-1/2	0.8	90.5	4	100
2	0.8	108	6	100
2-1/2	0.8	127	6	115
3	0.8	146	6	120
3-1/2	0.8	159	6	125
4	0.8	175	6	125
5	0.8	210	6	135
6	0.8	241	6	140
8	0.8	302	6	150
10	0.8	356	6	170
12	0.8	413	6	185
14	0.8	457	6	190
16	0.8	508	6	205
18	0.8	575	6	210
20	1.5	635	6	220
22	1.5	686	6	255
24	1.5	749	6	255

Find the largest ready stock of ASME B16.5 Class 900 Flanges, ASME B16.5 Slip On Flanges Dealer, Check Availability of B16.5 Threaded Flanges, ASME B16.5 Flange Price List, ASME B16.5 Reducing Flanges Stockist, ASME B16.5 RF Flanges Supplier, ASME B16.5 Forged Flanges in Mumbai, India.

ASME B16.5 CLASS 400 RTJ FACING FLANGES DIMENSIONS AND TECHNICAL DRAWINGS

NPS	Groove No.	P	E	F
1/2	11	34.14	5.54	7.14
3/4	13	42.88	6.35	8.74
1	16	50.80	6.35	8.74
1-1/4	18	60.33	6.35	8.74
1-1/2	20	68.27	6.35	8.74
2	23	82.55	7.92	11.91
2-1/2	26	101.60	7.92	11.91
3	30	117.48	7.92	11.91
3-1/2	34	131.78	7.92	11.91
4	37	149.23	7.92	11.91
5	41	180.98	7.92	11.91
6	45	211.12	7.92	11.91
8	49	269.88	7.92	11.91
10	53	323.85	7.92	11.91
12	57	381.00	7.92	11.91
14	61	419.10	7.92	11.91
16	65	469.90	7.92	11.91
18	69	533.40	7.92	11.91
20	73	584.20	9.53	13.49
22	81	635.00	11.13	15.09
24	77	692.15	11.13	16.66

NPS	r	G	h	L
1/2	0.8	51.0	3	75
3/4	0.8	63.5	4	90
1	0.8	70.0	4	90
1-1/4	0.8	79.5	4	95
1-1/2	0.8	90.5	4	110
2	0.8	108	5	110
2-1/2	0.8	127	5	120
3	0.8	146	5	125
3-1/2	0.8	159	5	140
4	0.8	175	6	140
5	0.8	210	6	145
6	0.8	241	6	150
8	0.8	302	6	170
10	0.8	356	6	190
12	0.8	413	6	205
14	0.8	457	6	210
16	0.8	508	6	220
18	0.8	575	6	230
20	1.5	635	6	250
22	1.5	686	6	260
24	1.5	749	6	280

ASME B16.5 CLASS 600 RTJ FACING FLANGES DIMENSIONS AND TECHNICAL DRAWINGS

NPS	Groove No.	P	E	F
1/2	11	34.14	5.54	7.14
3/4	13	42.88	6.35	8.74
1	16	50.80	6.35	8.74
1-1/4	18	60.33	6.35	8.74
1-1/2	20	68.27	6.35	8.74
2	23	82.55	7.92	11.91
2-1/2	26	101.60	7.92	11.91
3	30	117.48	7.92	11.91
3-1/2	34	131.78	7.92	11.91
4	37	149.23	7.92	11.91
5	41	180.98	7.92	11.91
6	45	211.12	7.92	11.91
8	49	269.88	7.92	11.91
10	53	323.85	7.92	11.91
12	57	381.00	7.92	11.91
14	61	419.10	7.92	11.91
16	65	469.90	7.92	11.91
18	69	533.40	7.92	11.91
20	73	584.20	9.53	13.49
22	81	635.00	11.13	15.09
24	77	692.15	11.13	16.66

NPS	r	G	h	L
1/2	0.8	51.0	3	75
3/4	0.8	63.5	4	90
1	0.8	70.0	4	90
1-1/4	0.8	79.5	4	95
1-1/2	0.8	90.5	4	110
2	0.8	108	5	110
2-1/2	0.8	127	5	120
3	0.8	146	5	125
3-1/2	0.8	159	5	140
4	0.8	175	5	145
5	0.8	210	5	165
6	0.8	241	5	170
8	0.8	302	5	195
10	0.8	356	5	215
12	0.8	413	5	220
14	0.8	457	5	235
16	0.8	508	5	255
18	0.8	575	5	275
20	1.5	635	5	290
22	1.5	686	6	310
24	1.5	749	6	335

ASME B16.5 CLASS 900 RTJ FACING FLANGES DIMENSIONS AND TECHNICAL DRAWINGS

NPS	Groove No.	P	E	F
1/2	12	39.67	6.35	8.74
3/4	14	44.45	6.35	8.74
1	16	50.80	6.35	8.74
1-1/4	18	60.33	6.35	8.74
1-1/2	20	68.27	6.35	8.74
2	24	95.25	7.92	11.91
2-1/2	27	107.95	7.92	11.91
3	31	123.83	7.92	11.91
4	37	149.23	7.92	11.91
5	41	180.98	7.92	11.91
6	45	211.12	7.92	11.91
8	49	269.88	7.92	11.91
10	53	323.85	7.92	11.91
12	57	381.00	7.92	11.91
14	62	419.10	11.13	16.66
16	66	469.90	11.13	16.66
18	70	533.40	12.70	19.84
20	74	584.20	12.70	19.84
24	78	692.15	15.88	26.97

NPS	r	G	h	L
1/2	0.8	60.5	4	110
3/4	0.8	66.5	4	115
1	0.8	71.5	4	125
1-1/4	0.8	81.0	4	125
1-1/2	0.8	92.0	4	140
2	0.8	124	3	145
2-1/2	0.8	137	3	160
3	0.8	156	4	145
4	0.8	181	4	170
5	0.8	216	4	190
6	0.8	241	4	195
8	0.8	308	4	220
10	0.8	362	4	235
12	0.8	419	4	255
14	1.5	467	4	280
16	1.5	524	4	290
18	1.5	594	5	335
20	1.5	648	5	360
24	2.4	772	6	455

ASME B16.5 CLASS 1500 RTJ FACING FLANGES DIMENSIONS AND TECHNICAL DRAWINGS

NPS	Groove No.	P	E	F
1/2	12	39.67	6.35	8.74
3/4	14	44.45	6.35	8.74
1	16	50.80	6.35	8.74
1-1/4	18	60.33	6.35	8.74
1-1/2	20	68.27	6.35	8.74
2	24	95.25	7.92	11.91
2-1/2	27	107.95	7.92	11.91
3	35	136.53	7.92	11.91
4	39	161.93	7.92	11.91
5	44	193.68	7.92	11.91
6	46	211.14	9.53	13.49
8	50	269.88	11.13	16.66
10	54	323.85	11.13	16.66
12	58	381.00	14.27	23.01
14	63	419.10	15.88	26.97
16	67	469.90	17.48	30.18
18	71	533.40	17.48	30.18
20	75	584.20	17.48	33.32
24	79	692.15	20.62	36.53

NPS	r	G	h	L
1/2	0.8	60.5	4	110
3/4	0.8	66.5	4	115
1	0.8	71.5	4	125
1-1/4	0.8	81.0	4	125
1-1/2	0.8	92.0	4	140
2	0.8	124	3	145
2-1/2	0.8	137	3	160
3	0.8	168	3	180
4	0.8	194	3	195
5	0.8	229	3	250
6	1.5	248	3	265
8	1.5	318	4	300
10	2.4	371	4	345
12	2.4	438	5	385
14	2.4	489	6	425
16	2.4	546	8	470
18	2.4	613	8	525
20	2.4	673	10	565
24	2.4	794	11	650

ASME B16.5 CLASS 2500 RTJ FACING FLANGES DIMENSIONS AND TECHNICAL DRAWINGS

NPS	Groove No.	P	E	F
1/2	13	42.88	6.35	8.74
3/4	16	50.80	6.35	8.74
1	18	60.33	6.35	8.74
1-1/4	21	72.23	7.92	11.91
1-1/2	23	82.55	7.92	11.91
2	26	101.60	7.92	11.91
2-1/2	28	111.13	9.53	13.49
3	32	127.00	9.53	13.49
4	38	157.18	11.13	16.66
5	42	190.50	12.70	19.84
6	47	228.60	12.70	19.84
8	51	279.40	14.27	23.01
10	55	342.90	17.48	30.18
12	60	406.40	17.48	33.32

NPS	r	G	h	L
1/2	0.8	65.0	4	120
3/4	0.8	73.0	4	125
1	0.8	82.5	4	140
1-1/4	0.8	102	3	150
1-1/2	0.8	114	3	170
2	0.8	133	3	180
2-1/2	1.5	149	3	205
3	1.5	168	3	230
4	1.5	203	4	260
5	1.5	241	4	310
6	1.5	279	4	355
8	1.5	340	5	395
10	2.4	425	6	510
12	2.4	495	8	560

ASME B16.5 Flanges Weight Chart

CLASS	Nominal Pipe Size	Slip On	Threaded	Socket Weld	Lap Joint	Blind	Weld Neck
150 lb	½	1	1	2	1	2	2
	¾	2	2	2	2	2	2
	1	2	2	2	2	2	3
	1¼	3	3	3	3	3	3
	1½	3	3	3	3	4	4
	2	5	5	5	5	5	6
	2½	8	8	8	8	7	10
	3	9	9	9	9	9	11.5
	3½	11	12	11	11	13	12
	4	13	13	13	13	17	16.5
	5	15	15	15	15	20	21
	6	19	19	19	19	27	26
	8	30	30	30	30	47	42
	10	43	43	43	43	70	54
	12	64	64	64	64	123	88
	14	90	90	90	105	140	114
	16	106	98	98	140	180	140
	18	130	130	130	160	220	165
	20	165	165	165	195	285	197
	22	185	185	185	245	355	225
	24	220	220	220	275	430	268
CLASS	Nominal Pipe Size	Slip On	Threaded	Socket Weld	Lap Joint	Blind	Weld Neck
300 lb	½	2	2	3	2	2	2
	¾	3	3	3	3	3	3
	1	3	3	3	3	4	4
	1¼	4.5	4.5	4	4.5	6	5
	1½	6.5	6.5	6	6.5	7	7
	2	7	7	7	7	8	9
	2½	10	10	10	10	12	12
	3	13	14	13	14.5	16	18
	3½	17	17	17	17	21	20
	4	23.5	24	22	24	28	26.5
	5	29	31	28	28	37	36
	6	39	39	39	39	50	45
	8	58	58	58	58	81	69
	10	81	81	81	91	124	100
	12	115	115	115	140	185	142
	14	165	165	165	190	250	206
	16	210	220	190	234	315	250
	18	253	280	250	305	414	320
	20	315	325	315	375	515	400
	22	370	370	370	435	640	465
	24	490	490	475	550	800	580
CLASS	Nominal Pipe Size	Slip On	Threaded	Socket Weld	Lap Joint	Blind	Weld Neck
400 lb	½	2	2	2	2	2	3
	¾	3	3	3	3	3	3.5
	1	3.5	3.5	3.5	3.5	4	4
	1¼	4.5	4.5	4.5	4.5	6	4.5
	1½	6.5	6.5	6.5	6.5	8	8
	2	8	8	8	8	10	10
	2½	12	12	12	11	15	14
	3	15	15	15	14	20	18
	3½	21	21	21	20	29	26
	4	26	26	26	25	33	35
	5	31	31	31	29	44	43
	6	44	44	44	42	61	57
	8	67	67	67	64	100	89
	10	91	91	91	110	155	125
	12	130	130	130	152	226	175
	14	191	191	191	210	310	233
	16	253	253	253	280	398	295
	18	310	310	310	345	502	360
	20	378	378	378	420	621	445
	22	405	405	405	455	720	505
	24	539	539	539	615	936	640
CLASS	Nominal Pipe Size	Slip On	Threaded	Socket Weld	Lap Joint	Blind	Weld Neck
600 lb	½	2	2	2	2	3	3
	¾	3	3	3	3	4	4
	1	4	4	4	4	4	4
	1¼	5	5	5	5	6	6
	1½	7	7	7	7	8	8
	2	9	9	9	9	10	12
	2½	13	13	13	12	15	18
	3	16	16	16	15	20	23
	3½	21	21	21	20	29	26
	4	37	37	37	36	41	42
	5	63	63	63	63	68	68
	6	80	80	80	78	86	81
	8	115	115	115	112	140	120
	10	177	177	177	195	231	190
	12	215	215	215	240	295	226
	14	259	259	259	290	378	347
	16	366	366	366	400	527	481
	18	476	476	476	469	665	555
	20	612	612	612	604	855	690
	22	590	590	590	670	1000	720
	24	876	876	876	866	1250	977
CLASS	Nominal Pipe Size	Slip On	Threaded	Socket Weld	Lap Joint	Blind	Weld Neck
900 lb	½	6	6	6	6	4	7
	¾	6	6	6	6	6	7
	1	7.5	7.5	7.5	7.5	9	8.5
	1¼	10	10	10	10	10	10
	1½	14	14	14	14	14	14
	2	22	22	22	21	25	24
	2½	31	31	31	25	32	31
	3	36	36	36	29	35	36
	4	53	53	53	51	54	53
	5	83	83	83	81	87	86
	6	110	110	110	105	115	110
	8	172	172	172	190	200	187
	10	245	245	245	277	290	268
	12	326	326	326	371	415	372
	14	400	400	400	415	520	562
	16	459	459	459	488	619	685
	18	647	647	647	670	880	924
	20	792	792	792	868	1107	1164
	24	1480	1480	1480	1659	2099	2107
CLASS	Nominal Pipe Size	Slip On	Threaded	Socket Weld	Lap Joint	Blind	Weld Neck
1500 lb	½	6	6	6	6	4	7
	¾	6	6	6	6	6	7
	1	8	8	8	8	9	9
	1¼	10	10	10	10	10	10
	1½	14	14	14	14	14	14
	2	25	25	25	25	25	25
	2½	36	36	36	35	35	36
	3	48	48	48	47	48	48
	4	73	73	73	75	73	73
	5	132	132	132	140	140	132
	6	165	165	165	170	160	165
	8	260	260	260	286	302	275
	10	436	436	436	485	510	455
	12	667	667	667	749	775	690
	14	940	940	940	890	975	940
	16	1250	1250	1250	1250	1300	1250
	18	1625	1625	1625	1475	1750	1625
	20	2050	2050	2050	1775	2225	2050
	24	2825	2825	2825	2825	3625	3325
CLASS	Nominal Pipe Size	Slip On	Threaded	Socket Weld	Lap Joint	Blind	Weld Neck
2500 lb	½	….	7	….	7	7	8
	¾	….	9	….	8	10	9
	1	….	12	….	12	12	13
	1¼	….	18	….	17	18	20
	1½	….	25	….	24	25	28
	2	….	38	….	37	39	42
	2½	….	55	….	53	56	52
	3	….	83	….	80	86	94
	4	….	127	….	122	133	146
	5	….	210	….	204	223	244
	6	….	323	….	314	345	378
	8	….	485	….	471	533	576
	10	….	925	….	897	1025	1068
	12	….	1300	….	1262	1464	1608

ASME B16.5 Flanges Tolerances

DIMENSIONAL TOLERANCES ■ ASME B16.5

WELDING NECK FLANGES

0	Outside Diameter	When 0 is 24″ or less	±0.06″	±1.6 mm
0	Outside Diameter	When O is over 24”	±0.12″	±3.2 mm
R	Diameter of Contact Face	0.06” (1.6 mm) raised face	±0.03″	±0.8 mm
R	Diameter of Contact Face	0.25″ (6.4 mm) raised face	±0.02″	±0.5 mm
A	Diameter of Hub at Point of Welding	NPS 5 and smaller	+0.09″, -0.03″	+2.4 mm, -0.8 mm
A	Diameter of Hub at Point of Welding	NPS 6 and larger	+0.16″, -0.03″	+4.0 mm, -0.8 mm
B	Inside Diameter	NPS 10 and smaller	±0.03″	±0.8 mm
		NPS 12 to 18, inclusive	±0.06″	±1.6 mm
		NPS 20 and larger	+0.12″, -0.06”	+3.2 mm, -1.6 mm
X	Diameter of Hub at Base	When Hub Base is 24″ or less	±0.06″	±1.6 mm
X	Diameter of Hub at Base	When Hub Base is over 24″	±0.12″	±3.2 mm
c	Thickness	NPS 18 and smaller	+0.12″, -0.00″	+3.2 mm, -0.0 mm
c	Thickness	NPS 20 and larger	+0.19″, -0.00″	+4.8 mm, -0.0 mm
	Drilling	Bolt Circle Diameter	±0.06″	±1.6 mm
	Drilling	Bolt Hole Spacing	±0.03″	±0.8 mm
	Eccentricity of Bolt Circle and Facing with Respect to Bore	NPS 21/2 and smaller	±0.03″	±0.8 mm
	Eccentricity of Bolt Circle and Facing with Respect to Bore	NPS 3 and larger	±0.06″	±1.6 mm
	Length Through Hub	NPS 10 and smaller	±0.06″	±1.6 mm
	Length Through Hub	NPS 12 and larger	±0.12″	±3.2 mm

SLIP-ON, LAP JOINT, SOCKET WELDING, THREADED and BLIND FLANGES

O	Outside Diameter	When O is 24″ or less When O is over 24″	±0.06″ ±0.12″	±1.6 mm ±3.2 mm
R	Diameter of Contact Face	0.06″ (1.6 mm) raised face 0.25″ (6.4 mm) raised face	±0.03″ ±0.02″	±0.8 mm ±0.5 mm
B	Inside Diameter at Face of Socket Welding Flanges Inside Diameter of Slip-On, Lap Joint, and Socket Welding	NPS 10 and smaller NPS 12 through 18, inclusive NPS 20 and larger	±0.03″ ±0.06″ +0.12″, -0.06″	±0.8 mm ±1.6 mm +3.2 mm, -1.6 mm
B		NPS 10 and smaller NPS 12 and larger	+0.03″, -0.00″ +0.06″, -0.00″	+0.8 mm, -0.0 +1.6 mm, -0.0 mm
Q	Counterbore, Threaded Flanges	NPS 10 and smaller NPS 12 and larger	+0.03″, -0.00″ +0.06″, -0.00″	+0.8 mm, -0.0 + 1.6 mm, -0.0 mm
X	Diameter of Hub at Base	NPS 12 and smaller NPS 14 and larger	+0.09″, -0.06″ ±0.12″	+2.4 mm, -1.6 ±3.2 mm
c	Thickness	NPS 18 and smaller NPS 20 and larger	+0.12″, -0.00″ +0.19″, -0.00″	+3.2 mm, -0.0 +4.8 mm, -0.0 mm
	Drilling	Bolt Circle Diameter Bolt Hole Spacing	±0.06″ ±0.03″	±1.6 mm ±0.8 mm
	Eccentricity of Bolt Circle and Facing with Respect to Bore	NPS 2V2 and smaller NPS 3 and larger	±0.03″ ±0.06″	±0.8 mm ±1.6 mm
	Overall Length Through Hub	NPS 18 and smaller NPS 20 and larger	+0.12”, -0.03” +0.19”, -0.03”	+3.2 mm, -0.8 mm +4.8 mm, -1.6 mm

ASME B16.5 Flanges Pressure And Temperature Ratings

Working Pressure (bar)
Temperature (°C)	Class
Temperature (°C)	150	300	400	600	900	1500	2500
-29 – 38	19.8	51.7	68.9	103.4	155	259	431
50	19.5	51.7	68.9	103.4	155	259	431
100	17.7	51.5	68.7	103.0	155	258	429
150	15.8	50.2	66.8	100.3	151	251	418
200	13.8	48.6	64.8	97.2	146	243	405
250	12.1	46.3	61.7	92.7	139	232	386
300	10.2	42.9	57.0	85.7	129	214	357
325	9.3	41.4	55.0	82.6	124	207	344
350	8.4	40.0	53.4	80.0	120	200	334
375	7.4	37.8	50.4	75.7	114	189	315
400	6.5	34.7	46.3	69.4	104	174	290
425	5.5	28.8	38.4	57.5	86.3	144	240
450	4.6	23.0	30.7	46.0	69.0	115	192
475	3.7	17.1	22.8	34.2	51.3	85.4	142
500	2.8	11.6	15.4	23.2	34.7	57.9	96.5
538	1.4	5.9	7.9	11.8	17.7	29.5	49.2

Pressure and Temperature Ratings – Group 1.1

Working Pressure (bar)
Temperature (°C)	Class
Temperature (°C)	150	300	400	600	900	1500	2500
-29 – 38	19.6	51.1	68.1	102.1	153.2	255.3	425.5
50	19.2	50.1	66.8	100.2	150.4	250.6	417.7
100	17.7	46.6	62.1	93.2	139.8	233.0	388.3
150	15.8	45.1	60.1	90.2	135.2	225.4	375.6
200	13.8	43.8	58.4	87.6	131.4	219.0	365.0
250	12.1	41.9	55.9	83.9	125.8	209.7	349.5
300	10.2	39.8	53.1	79.6	119.5	199.1	331.8
325	9.3	38.7	51.6	77.4	116.1	193.6	322.6
350	8.4	37.6	50.1	75.1	112.7	187.8	313.0
375	7.4	36.4	48.5	72.7	109.1	181.8	303.1
400	6.5	34.7	46.3	69.4	104.2	173.6	289.3
425	5.5	28.8	38.4	57.5	86.3	143.8	239.7
450	4.6	23.0	30.7	46.0	69.0	115.0	191.7
475	3.7	17.4	23.2	34.9	52.3	87.2	145.3
500	2.8	11.8	15.7	23.5	35.3	58.8	97.9
538	1.4	5.9	7.9	11.8	17.7	29.5	49.2

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ASME B16.5 Flanges Applications

We stock in India and export to the following countries

Australia, Afghanistan, Algeria, Angola, Argentina, Armenia, Azerbaijan, Bahrain, Bangladesh, Benin,
Bhutan, Botswana, Brazil, Brunei, Burkina Faso, Cambodia, Cameroon, Canada, Central Africa Republic,
Chad, Chile, Colombia, Cuba, Cyprus, DRC, Djibouti, Egypt, Equatorial Guinea, Eritrea, Eswatini,
Ethiopia, Fiji, Finland, France, Georgia, Germany, Ghana, Greece, Hungary, Iceland, Indonesia, Iran,
Iraq, Ireland, Israel, Italy, Japan, Jordan, Kazakhstan, Kenya, Kuwait, Kyrgyzstan, Laos, Lebanon,
Lesotho, Liberia, Libya, Lithuania, Madagascar, Malawi, Malaysia, Maldives, Mali, Mexico, Morocco,
Mozambique, Mauritania, Myanmar, Namibia, Nepal, Netherlands, New Zealand, Nigeria, Norway, Oman,
Panama, Peru, Philippines, Poland, Portugal, Palestine, Qatar, Russia, Rwanda, Romania, Saudi Arabia,
Senegal, Sierra Leone, Singapore, Slovakia, Somalia, South Africa, South Korea, South Sudan, Spain,
Sri Lanka, Sweden, Switzerland, Syria, Taiwan, Tajikistan, Tanzania, Tasmania, Thailand, The Gambia,
Timor-Leste, Togo, Tunisia, Turkey, Turkiye, Turkmenistan, Uganda, Uzbekistan, United Arab Emirates (UAE),
United Kingdom (UK), United States (US), Venezuela, Vietnam, Yemen, Zambia, Zimbabwe

We stock in Mumbai and supply to the following cities

Abu Dhabi, Amsterdam, Abuja, Accra, Addis Ababa, Ahmedabad, Algiers, Amman, Ankara, Antananarivo,
Ashgabat, Asmara, Astana, Athens, Baghdad, Baku, Bamako, Bandar Seri Begawan, Bangkok, Bangui,
Banjul, Beirut, Bengaluru, Berlin, Bishkek, Bloemfontein, Bogotá, Bern, Brasília, Bratislava,
Bucharest, Budapest, Buenos Aires, Cairo, Canberra, Cape Town, Caracas, Chennai, Coimbatore, Dakar,
Damascus, Dhaka, Dili, Djibouti city, Dodoma, Doha, Dublin, Dushanbe, Freetown, Gaborone, Ghaziabad,
Guwahati, Hanoi, Harare, Havana, Helsinki, Hobart, Hyderabad, Indore, Jaipur, Jakarta, Jerusalem,
Juba, Jurong East, Kabul, Kampala, Kanpur, Kathmandu, Kigali, Kinshasa, Kochi, Kolkata, Kuala Lumpur,
Kuwait City, Lisbon, Lilongwe, Lima, Lobamba, Lomé, London, Luanda, Lucknow, Lusaka, Malabo, Madrid,
Malé, Mexico City, Manama, Moscow, Manila, Maputo, Maseru, Mbabane, Mogadishu, Monrovia, Mumabi,
Muscat, Nagpur, Nairobi, New Delhi, Niamey, Nicosia, Noida, Nouakchott, N’Djamena, Oslo, Ottawa,
Ouagadougou, Panama City, Paris, Patna, Phnom Penh, Porto-Novo, Pretoria, Pune, Rabat, Reykjavík,
Riyadh, Rome, Sana’a, Santiago, Sri Jayawardenepura Kotte, Stockholm, Seoul, Singapore, Surat,
Suva, Taipei City, Tashkent, Tokyo, Tbilisi, Tehran, Thimphu, Tripoli, Tunis, Vientiane, Vilnius,
Visakhapatnam, Warsaw, Washington D.C., Wellington, Windhoek, Yaoundé, Yerevan, Naypyidaw

ASME B16.5 Flanges Price

Omaa Metal Sources is ANSI/ASME B16.5 Flanges Exporters and Suppliers in the US, UK, South Africa, Saudi Arabia, Singapore, UAE, Oman, South Korea, Turkey, Bahrain, Malaysia, Philippines, Thailand, Norway, Indonesia, Iraq, Yemen, Bangladesh, Nigeria, Egypt, Peru, Ghana, Morocco, Etc.