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ASME B16.5 Flange

B16.5 Flange Forging

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ASME B16.5 Flange Dimensions

Normal Pipe Size	(O.D.) For Outer Dia.	Min. (WT) (T)	Diameter Of (RF) (R)	Bolt Hole No.	Holes Dia.	B.C.	(SORF) Bore (I.D.) (SO.B)	(WNRF) Bore (I.D.) (WN.B)	Dia. Of Hub Base (H.B.)	Dia. of Hub Top (H.T.)	Slip On Length (S.L.)	Weld Neck Length (W.L.)
¹⁄₂	3.50	0.38	1.38	4	0.62	2.38	0.88	0.62	1.19	0.84	0.56	1.81
³⁄₄	3.88	0.44	1.69	4	0.62	2.75	1.09	0.82	1.50	1.05	0.56	2.00
1	4.25	0.50	2.00	4	0.62	3.12	1.36	1.05	1.94	1.32	0.62	2.12
1¹⁄₄	4.62	0.56	2.50	4	0.62	3.50	1.70	1.38	2.31	1.66	0.75	2.19
1¹⁄₂	5.00	0.62	2.88	4	0.62	3.88	1.95	1.61	2.56	1.90	0.81	2.38
2	6.00	0.69	3.62	4	0.75	4.75	2.44	2.07	3.06	2.38	0.94	2.44
2¹⁄₂	7.00	0.81	4.12	4	0.75	5.50	2.94	2.47	3.56	2.88	1.06	2.69
3	7.50	0.88	5.00	4	0.75	6.00	3.57	3.07	4.25	3.50	1.12	2.69
3¹⁄₂	8.50	0.88	5.50	8	0.75	7.00	4.07	3.55	4.81	4.00	1.19	2.75
4	9.00	0.88	6.19	8	0.75	7.50	4.57	4.03	5.31	4.50	1.25	2.94
5	10.00	0.88	7.31	8	0.88	8.50	5.66	5.05	6.44	5.56	1.38	3.44
6	11.00	0.94	8.50	8	0.88	9.50	6.72	6.07	7.56	6.63	1.50	3.44
8	13.50	1.06	10.62	8	0.88	11.75	8.72	7.98	9.69	8.63	1.69	3.94
10	16.00	1.12	12.75	12	1.00	14.25	10.88	10.02	12.00	10.75	1.88	3.94
12	19.00	1.19	15.00	12	1.00	17.00	12.88	12.00	14.38	12.75	2.12	4.44
14	21.00	1.31	16.25	12	1.12	18.75	14.14	13.25	15.75	14.00	2.19	4.94
16	23.50	1.38	18.50	16	1.12	21.25	16.16	15.25	18.00	16.00	2.44	4.94
18	25.00	1.50	21.00	16	1.25	22.75	18.18	17.25	19.88	18.00	2.62	5.44
20	27.50	1.62	23.00	20	1.25	25.00	20.20	19.25	22.00	20.00	2.81	5.62
22	29.50	1.75	25.25	20	1.38	27.25	22.22	21.25	24.25	22.00	3.07	5.82
24	32.00	1.81	27.25	20	1.38	29.50	24.25	23.25	26.12	24.00	3.19	5.94

Types Of ASME B16.5 Flange

Stainless Steel Reducing Flange

Stainless Steel Weld Neck Flange

Spades Ring Spacers Flanges

Stainless Steel Blind Flange

Carbon Steel Orifice Flange

ASME B16.5 Square Flanges

Spectacle Blind Flanges

Stainless Steel Slip On Flange

Stainless Steel Plate Flange

Nipo Flange

Studding Flange

ASME B16.47 Flange

Flange Facing

Type A: Flat Face (FF)
Type B: Raised Face (RF)
Type C: Tongue Face (TF)
Type D: Grooved Face (GF)
1Type E: Spigo
Type F: Recess
Type G: Ring Recess
Type H: O-Ring Groove

ASME B16.5 Standard

API Flange

EN 1092-1 Flange

DIN 2633 Flange

Australian Standard Flanges

Korean Standard Flanges

Norwegian Standard Flanges

BS10 Table D Flange

MSS SP-44 Flange

UNI Flange

ASME B1Pipe Flange Material

Stainless steels
X2CrNi18-9	W.Nr. 1.4307
X2CrNiMo17-12-2	W.Nr. 1.4406
X2CrNiMo17-13-2	W.Nr. 1.4404
X2CrNiMoN22-5-3	W.Nr. 1.4462
X2CrNiMo17-13-3	W.Nr. 1.4429
X2CrNiMo25-7-4	W.Nr. 1.4410
X3CrNiMo13-4	W.Nr. 1.4313
X3CrNiMoN17-13-3	W.Nr. 1.4436
X6CrNiMoTi17-12-2	W.Nr. 1.4571
X6CrNiNb18-10	W.Nr. 1.4550
X5CrNi18-10	W.Nr. 1.4301
X5CrNiMo17-12-2	W.Nr. 1.4401
X6CrNi18-11	W.Nr. 1.4948

Nickel steels
12Ni14	EN 10222-3
W.Nr. 1.5680	EN 10222-3

Carbon steel forging
C22	EN 10250-2
20Mn5	-
20Mn5N	-
20Mn5V	-
S235JRG2	W.Nr. 1.0038
S235J2G3	W.Nr. 1.0116

Alloy special steel
20MnMoNi4-5	EN 10250-3

Carbon steel for piping components
A105 And A105M	ASTM A105

Alloy steel forgings for pressure/ high temperature
A336 F1
A336 F5
A336 F5A
A336 F11
A336 F22
A336 F22V
A336 F9
A336 F91
A336 F92

ANSI B16.5 Flange Equivalent Grades

C22.8	P250GH	A105	SA105	-	-
15Mo3	16Mo3	-	-	-	-
13CrMo44	13CrMo4-5	A182F12	SA182F12	-	-
10CrMo910	11CrMo9-10	A182F22	SA182F22	-	-
1.4901	-	A182F92	SA182F92	-	X10CrWMoVNb9-2
1.4903	-	A182F91	SA182F91	-	X10CrMoVNb9-1
1.4905	E911	-	-	-	X11CrMoVWNb9-11
1.4910	-	-	-	-	X6CrNiMoN17-12-2
1.4922	-	-	-	-	X20CrMoV11-1
1.4923	-	-	-	-	X22CrMoV12-1
1.4948	-	-	-	-	X6CNi18-10
1.4981	-	-	-	-	X8CrNiMoNb16-6
1.4988	-	-	-	-	X8CrNiMoVNb16-13
1.6311	-	-	-	-	20MnMoNi45
1.6368	-	WB36	-	-	15NiCuMoNb5
W/TSTE355	P355	A350LF2	SA350LF2	-	-
W/TSTE420	P420	-	-	-	-
W/TSTE460	-	-	-	-	-
12CrMo19.5 (V/G)	-	A182/ F5	SA182/ F5	-	-
1.5637	-	-	-	-	12Ni14
1.7715	-	-	-	-	14MoV63
ST 52.3	S355J2 N	-	-	-	-
42CrMo4	-	-	-	-	-
25CrMo4	-	-	-	-	-
14MoV63	-	-	-	-	-
10Ni14 / 12Ni14	-	-	-	-	-
1.4021	-	-	-	-	X20Cr13
1.4057	-	-	-	-	X17CrNi16 2
1.4122	-	-	-	-	X39CrMo17 1
1.4301	-	A182/A479 304	SA182/SA479 304L	-	X5CrNi18 10
1.4305	-	-	-	-	X8CrNiS18 9
1.4306	-	A182/A479 304	SA182/SA479 304L	-	X2CrNi19 11
1.4307	-	-	-	-	X2CrNi18 9
1.4313	-	-	-	-	X3CrNiMo13 4
1.4401	-	-	-	-	X5CrNiMo17 12 2
1.4404	-	A182/A479 316	SA182/SA479 316L	-	X2CrNiMo17 12 2
1.4410	-	A182/A479 F53	SA182/SA479 F53	S 32750	X2CrNiMoN25 7 4
1.4435	-	-	-	S 31603	X2CrNiMo18 14 3
1.4439	-	-	-	S 31726	X2CrNiMoN17 13 5
1.4462	-	A182/A479 F51	SA182/SA479 F51	S 31803	X2CrNiMoN22 5 3
1.4501	-	A182/A479 F55	SA182/SA479 F55	S 32760	X2CrNiMoCuWN25 7 4
1.4529	-	-	-	-	X1NiCrMoCuN25 20
1.4539	-	-	-	-	X1NiCrMoCu25 20 5
1.4541	-	A182/A479 321	SA182/SA479 321	-	X6CrNiTi18 10
1.4550	-	A182/A479 347	SA182/SA479 347	-	X6CrNiNb18 10
1.4571	-	A182/A479 316Ti	SA182/SA479 316TI	-	X6CrNiMoTi17 12 2
1.4713	-	-	-	-	X10CrAlSi7
1.4742	-	-	-	-	X10CrAlSi25
1.4828	-	-	-	-	X15CrNiSi20 12
1.4876 H/HT	-	Alloy 800 H/HT	-	-	X10NiCrAlTi32 20
1.4841	-	A182/A479 F321H	-	-	X15CrNiSi25 21
1.4878	-	-	-	-	X8CrNiTi18 10
2.4360	-	Alloy 400	-	-	NiCu30Fe
2.4605	-	Alloy 59	-	-	NiCr23Mo16Al
2.4610	-	Hastelloy C4	-	-	NiMo16Cr16Ti
2.4617	-	Alloy B2	-	-	NiMo28
2.4660	-	Alloy 20	-	-	NiCr20CuMo
2.4663	-	Alloy 617	-	-	NiFe30Cr29Mo
2.4816	-	Alloy 600	-	-	NiCr15Fe
2.4819	-	Hastelloy C276	-	-	NiMo16Cr15W
2.4856	-	Alloy 625	-	-	NiCr22Mo9Nb
3.7035	-	Titan Grade2	-	-	Ti2

ANSI B16 5 Class 900 Flange Dimensions

(Nominal Size Of Steel Pipe)	Outer Diameter (O.D.)	Min. (WT)	RF Dia. Of (R)	Bolts Holes Number	Flanges Hole Dia.	Bolt Circle As Per ASME B16.5	Slip On (SO) Bore I.D.	* WN (Weld Neck) Bore I.D.	Hub Base Diameter	Hub Top Diameter	SO (Slip On) Length	WN (Weld Neck) Length
3	9.50	1.50	5.00	8	1.00	7.50	3.57	*	5.00	3.50	2.12	4.00
4	11.50	1.75	6.19	8	1.25	9.25	4.57	*	6.25	4.50	2.75	4.50
5	13.75	2.00	7.31	8	1.38	11.00	5.66	*	7.50	5.56	3.12	5.00
6	15.00	2.19	8.50	12	1.25	12.50	6.72	*	9.25	6.63	3.38	5.50
8	18.50	2.50	10.63	12	1.50	15.50	8.72	*	11.75	8.63	4.00	6.38
10	21.50	2.75	12.75	16	1.50	18.50	10.88	*	14.50	10.75	4.25	7.25
12	24.00	3.12	15.00	20	1.50	21.00	12.88	*	16.50	12.75	4.63	7.88
14	25.25	3.38	16.25	20	1.63	22.00	14.14	*	17.75	14.00	5.12	8.38
16	27.75	3.50	18.50	20	1.75	24.25	16.16	*	20.00	16.00	5.25	8.50
18	31.00	4.00	21.00	20	2.00	27.00	18.18	*	22.25	18.00	6.00	9.00
20	33.75	4.25	23.00	20	2.13	29.50	20.20	*	24.50	20.00	6.25	9.75
24	41.00	5.50	27.25	20	2.63	35.50	24.25	*	29.50	24.00	8.00	11.50

ANSI B16 5 Class 1500 Flange Dimensions

(Nominal Size Of Steel Pipe)	Outer Diameter (O.D.)	Min. (WT)	RF Dia. Of (R)	Bolts Holes Number	Flanges Hole Dia.	Bolt Circle As Per ASME B16.5	So Bore I.D. Of (SB)	Hub Base Diameter	Hub Top Diameter	SO (Slip On) Length	WN (Weld Neck) Length	* WN Bore Inside Daimeter (WB)
¹⁄₂	4.75	0.88	1.38	4	0.88	3.25	0.88	1.50	0.84	1.25	2.38	*
³⁄₄	5.12	1.00	1.69	4	0.88	3.50	1.09	1.75	1.05	1.38	2.75	*
1	5.88	1.12	2.00	4	1.00	4.00	1.36	2.06	1.32	1.62	2.88	*
1¹⁄₄	6.25	1.12	2.50	4	1.00	4.38	1.70	2.50	1.66	1.62	2.88	*
1¹⁄₂	7.00	1.25	2.88	4	1.12	4.88	1.95	2.75	1.90	1.75	3.25	*
2	8.50	1.50	3.63	8	1.00	6.50	2.44	4.12	2.38	2.25	4.00	*
2¹⁄₂	9.62	1.62	4.13	8	1.12	7.50	2.94	4.88	2.88	2.50	4.12	*
3	10.50	1.88	5.00	8	1.25	8.00	-	5.25	3.50	-	4.62	*
4	12.25	2.12	6.19	8	1.38	9.50	-	6.38	4.50	-	4.88	*
5	14.75	2.88	7.31	8	1.63	11.50	-	7.75	5.56	-	6.12	*
6	15.50	3.25	8.50	12	1.50	12.50	-	9.00	6.63	-	6.75	*
8	19.00	3.62	10.63	12	1.75	15.50	-	11.50	8.63	-	8.38	*
10	23.00	4.25	12.75	12	2.00	19.00	-	14.50	10.75	-	10.00	*
12	26.50	4.88	15.00	16	2.12	22.50	-	17.75	12.75	-	11.12	*
14	29.50	5.25	16.25	16	2.38	25.00	-	19.50	14.00	-	11.75	*
16	32.50	5.75	18.50	16	2.63	27.75	-	21.75	16.00	-	12.25	*
18	36.00	6.38	21.00	16	2.88	30.50	-	23.50	18.00	-	12.88	*
20	38.75	7.00	23.00	16	3.12	32.75	-	25.25	20.00	-	14.00	*
24	46.00	8.00	27.25	16	3.63	39.00	-	30.00	24.00	-	16.00	*

ASME B16.5 Class 2500 Pressure Rating

(Nominal Size Of Steel Pipe)	Outer Diameter (O.D.)	Min. (WT)	RF Dia. Of (R)	Bolts Holes Number	Flanges Hole Dia.	Bolt Circle As Per ASME B16.5	Hub Base Diameter	Hub Top Diameter	SO (Slip On) Length	WN (Weld Neck) Length	* WN (Weld Neck) Bore I.D.
¹⁄₂	5.25	1.19	1.38	4	0.88	3.50	1.69	0.84	1.56	2.88	*
³⁄₄	5.50	1.25	1.69	4	0.88	3.75	2.00	1.05	1.69	3.12	*
1	6.25	1.38	2.00	4	1.00	4.25	2.25	1.32	1.88	3.50	*
1¹⁄₄	7.25	1.50	2.50	4	1.12	5.13	2.88	1.66	2.06	3.75	*
1¹⁄₂	8.00	1.75	2.88	4	1.25	5.75	3.12	1.90	2.38	4.38	*
2	9.25	2.00	3.63	8	1.12	6.75	3.75	2.38	2.75	5.00	*
2¹⁄₂	10.50	2.25	4.13	8	1.25	7.75	4.50	2.88	3.12	5.62	*
3	12.00	2.62	5.00	8	1.38	9.00	5.25	3.50	–	6.62	*
4	14.00	3.00	6.19	8	1.63	10.75	6.50	4.50	–	7.50	*
5	16.50	3.62	7.31	8	1.88	12.75	8.00	5.56	–	9.00	*
6	19.00	4.25	8.50	8	2.12	14.50	9.25	6.63	–	10.75	*
8	21.75	5.00	10.63	12	2.12	17.25	12.00	8.63	–	12.50	*
10	26.50	6.50	12.75	12	2.63	21.25	14.75	10.75	–	16.50	*
12	30.00	7.25	15.00	12	2.88	24.38	17.38	12.75	–	18.25	*

ANSI B16.5 Class 300 Flange Pressure Rating

Temperature (in F°)	ASME/ ANSI B16.5 Class 300 Flanges
100	740
200	680
300	655
400	635
500	605
600	570
650	550
700	530
750	505
800	410
850	320
900	230
950	135
1000	85

ASME B16.5 Flange Sizes

Normal Pipe Size	DN
1/2	15
3/4	20
1	25
1 1/4	32
1 1/2	40
2	50
2 1/2	65
3	80
4	100

ANSI B16.5 Material

Stainless Steel Flanges Grade

Stainless Steel 304 Flanges

Stainless Steel 304L Flanges

Stainless Steel 304H Flanges

Stainless Steel 310 Flanges

Stainless Steel 316 Flanges

Stainless Steel 316L Flanges

Stainless Steel 321 Flanges

Stainless Steel 347 Flanges

Stainless Steel 410 Flanges

Carbon Steel Flanges Grades

ASTM A105 Flange

ASTM A350 LF1 Flanges

ASTM A350 LF2 Flanges

ASTM A350 LF3 Flanges

ASTM A350 LF5 Flanges

ASTM A350 LF6 Flanges

ASTM A350 LF 787 Flanges

ASTM A694 F42 Flange

ASTM A694 F46 Flange

Alloy Steel Flanges Grades

ASTM A182 F1 Flange

ASTM A182 F5 Flange

ASTM A182 F9 Flange

ASTM A182 F22 Flange

ASTM A182 F91 Flange

ASTM A182 F92 Flange

ASTM A707 L3 CL3 Flanges

ASTM A182 F11 Flange

B16.5 Flange Dimensions Tolerance

Type Of ASME/ ANSI B16.5 Pipe Flange	Diameter	Tolerance Chart
(A)	(Outer Diameter)	When Outer Diameter is 24 Inch or less: ±1/16" (1.6 mm) When Outer Diameter is over 24": ±1/8" (3.2 mm)
(D)	(Inner Diameter)	10 Inches and smaller: ±1/32" (0.8 in mm) 12 Inches thru 18": +1/8" (3.2 in mm) 20 Inches and larger: -1/16" (1.6 in mm)
(B)	Contact Face	1/16" (RF): ±1/32" (0.8 mm) 1/4" (RF), Tongue And Groove (male And female): ±1/64" (0.4 mm)
(J)	Hub At Base Dai.	When hub base is 24 inches or smaller: ±1/16" (1.6 millimeter) When hub base is over 24": ±1/8" (3.2 millimeter)
(H)	Diameter of hub at point of welding	5 inch or smaller: +3/32" (2.4 mm), -1/32" (0.8 millimeter) 6 inch or larger: +5/32" (4.0 millimeter), -1/32 (0.8 mm)
(P)	Drilling	(B.C.): ±1/16" (1.6 mm) (B.H.) spacing: ±1/32" (0.8 mm)
	Eccentricity of (bc) with respect to facing	2 1/2" or smaller ±1/32" (0.8 mm) max. 3" or larger ±1/16" (1.6 mm) max.
(C)	(W.T.)	18 inch or smaller: ±1/8" (3.2 mm), -0" 20 inch or larger: ±3/16" (4.8 mm), -0"
(K)	hub Length	10 Inch or smaller: ±1/16" (1.6 millimeter) 12 Inch or larger: ±1/8" (3.2 millimeter)

Flange Application

ASME B16.5 Ff Flange Dimensions

Normal Size Of Pipe	Pipes Diameter		Inner Diameter	flanges holes Number	Diameter Of Flange	Wall Flange Thickness	B.C. Diameter	B. H. Diameter	Weight In Kilogram
(DN)	(ISO)	(DIN)	(D5)	(BN)	(D)	(b)	(K)	(d2)	(Kilogram)
10	–	14	14.5	4	90	16	60	14	0.7
10	17.2	–	17.7	4	90	16	60	14	0.69
15	–	20	21	4	95	16	65	14	0.77
15	21.3	–	22	4	95	16	65	14	0.77
20	–	25	26	4	105	18	75	14	1.06
20	26.9	–	27.6	4	105	18	75	14	1.05
25	–	30	31	4	115	18	85	14	1.27
25	33.7	–	34.4	4	115	18	85	14	1.25
32	–	38	39	4	140	18	100	18	1.86
32	42.4	–	43.1	4	140	18	100	18	1.83
40	–	44.5	45.5	4	150	18	110	18	2.12
40	48.3	–	49	4	150	18	110	18	2.09
50	–	57	58.1	4	165	20	125	18	2.78
50	60.3	–	61.1	4	165	20	125	18	2.74
65	76.1	–	77.1	8	185	22	145	18	3.48
80	88.9	–	90.3	8	200	24	160	18	4.33
100	–	108	109.6	8	235	24	190	22	5.82
100	114.3	–	115.9	8	235	24	190	22	5.61
125	–	133	134.8	8	270	26	220	26	7.91
125	139.7	–	141.6	8	270	26	220	26	7.6
150	–	159	161.1	8	300	28	250	26	10.12
150	168.3	–	170.5	8	300	28	250	26	9.58
175	193.7	–	196.1	12	350	32	295	30	14.45
200	219.1	–	221.8	12	375	34	320	30	16.9
250	–	267	270.2	12	450	38	385	33	27.28
250	273	–	276.2	12	450	38	385	33	26.51
300	323.9	–	327.6	16	515	42	450	33	36.38
350	355.6	–	359.7	16	580	46	510	36	52.83
350	–	368	372.2	16	580	46	510	36	50.24
400	406.4	–	411	16	660	50	585	39	74.71
400	–	419	423.7	16	660	50	585	39	71.44
500	508	–	513.6	20	755	52	670	42	86.87

ANSI B16.5 Flange Surface Finish Chart

Normal Pipe Size	(A)	(B)
1/2	3.0	1.5
3/4	3.0	1.5
1	3.0	1.5
1-1/4	3.0	1.5
1-1/2	3.0	1.5
2	3.0	1.5
2-1/2	3.0	1.5
3	4.5	1.5
3-1/2	6.0	3.0
4	6.0	3.0
5	6.0	3.0
6	6.0	3.0
8	8.0	4.5
10	8.0	4.5
12	8.0	4.5
14	8.0	4.5
16	10.0	4.5
18	12.0	6.0
20	12.0	6.0
22	12.0	6.0
24	12.0	6.0

ASME B16.5 Flange Specification

Specification	ASME B16.5 Flange
Schedule	SCH 5S, SCH 10, SCH 40, SCH 80, SCH 120, SCH 160, SCH 180 To XXS
Dimensions And Standard	EN 1092-1/ EN 1092-2/ API
Manufacturer Length	NPS 1⁄₂" To NPS 48”
Face Type	RTJ/ FF/ RF/ lap joint/ Male & Female / Tongue & Groove.
Manufacturer Types	Reducing Flange Stainless Steel Weld Neck Flange Spades Ring Spacers Flanges Stainless Steel Blind Flange ASME B16.5 Square Flanges Orifice Flange Spectacle Blind Flanges Stainless Steel Slip On Flange Stainless Steel Plate Flange Nipo Flange Stainless Steel Lap Joint Flanges RTJ Flange
Forging Methods	Casting/ Forging/ Rolling/ Cutting
EN Standard	6Bar/ 10Bar/ 16Bar/ 25Bar/ 40Bar
DIN Standard	PN6/ PN10/ PN16/ PN25/ PN40/ PN64
JIS Standard	5K/ 10K/ 16K 20K/ 30K/ 40K/ 63K
Other Standard	B16.47 Series A & B/ B16.48, BS4504/ GOST
UNI Standard	6 Bar/ 10 Bar/ 16 Bar/ 25 Bar/ 40 Bar
Supporting Material	Gasket/ Ring Joint/ Flange Bolts
Test Certificates	EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc
Production Technique	Forged/ Heat treated and machined
Manufacturer of	Forged/ Threaded/ Screwed / Plate
Manufacturer Pressure Class	Class 150 (lb) up to 24" Class 300 (lb) up to 20" Class 600 (lb) up to 20" Class 900 (lb) up to 16" Class 1500 (lb) up to 10" Class 2500 (lb) up to 8"
Flange Test	Hydrostatic testing machine/ UI trasonic flaw detector/ X-ray detector/ Direct-reading Spectrograph/ Magnetic particle detector
Flange Equipment	Pushing Machine/ electric bevelling machine/ Press machine/ Bending machine/ Sand-blasting machine etc
Coating	Anti-rust Paint/ Zinc Plated/ Oil Black Paint/ Yellow Transparent/ Cold and Hot Dip Galvanized
Application	Bitumen upgraders Heavy oil refineries. Nuclear power (mostly seamless). Petrochemicals and acids.

ASME B16.5 Flange Weight Chart

Normal Size Of Steel Pipe		Dimensions In Millimeter		ASME B16.5 Flanges Weight In Kilogram
Normal Size Of Steel Pipe In Inches	Size In Millimeter	ASME B16.5 Flanges Outer Daimeter (O.D.) In (MM)	ANSI B16.5 Flanges Wall Thickness Of (D) (In M)	(ANSI B16.5 Slip On Flanges) (ANSI B16.5 Socket Weld Flanges)	(ANSI B16.5 Weld Neck Flanges)	(ANSI B16.5 Blind Flanges)
1/2	15	88.9	11.2	0.4	0.5	0.4
3/4	20	98.6	12.7	0.6	0.7	0.6
1	25	108	14.2	0.8	1	0.9
1 1/4	32	117.3	15.7	1	1.3	1.2
1 1/2	40	127	17.5	1.3	1.7	1.5
2	50	152.4	19.1	2.1	2.6	2.4
2 1/2	65	177.8	22.4	3.3	4.1	3.9
3	80	190.5	23.9	3.9	4.9	4.9
3 1/2	90	215.9	23.9	4.8	6.1	6.2
4	100	228.6	23.9	5.3	6.8	7.0
5	125	254	23.9	6.1	8.6	8.6
6	150	279.4	25.4	7.5	10.6	11.3
8	200	342.9	28.4	12.1	17.6	19.6
10	250	406.4	30.2	16.5	24	28.6
12	300	482.6	31.8	26.2	36.5	43.2
14	350	533.4	35.1	34.6	48.4	58.1
16	400	596.9	36.6	44.8	60.6	76.1
18	450	635	39.6	48.9	68.3	93.7
20	500	698.5	42.9	61.9	84.5	122.0

ASME B16 5 Gasket Dimensions

(Normal Size Of Steel Pipes) In Inch	(I.D.) Inner Daimeter Gasket	(O.D.) Outer Daimeter Gasket
(Normal Size Of Steel Pipes) In Inch	(I.D.) Inner Daimeter Gasket	Class 150#/ LB	Class 300#/ LB	Class 400#/ LB	Class 600#/ LB	Class 900#/ LB
1/2	0.84	1.875	2.125	2.125	2.125	2.50
3/4	1.06	2.25	2.625	2.625	2.625	2.75
1	1.31	2.625	2.875	2.875	2.875	3.125
1 1/4	1.66	3	3.25	3.25	3.25	3.50
1 1/2	1.91	3.375	3.75	3.75	3.75	3.875
2	2.38	4.125	4.375	4.375	4.375	5.625
2 1/2	2.88	4.875	5.125	5.125	5.125	6.50
3	3.50	5.375	5.875	5.875	5.875	6.625
4	4.50	6.875	7.125	7.00	7.625	8.125
5	5.56	7.75	8.50	8.375	9.50	9.75
6	6.62	8.75	9.875	9.75	10.50	11.375
8	8.62	11	12.125	12.00	12.625	14.125
10	10.75	13.375	14.25	14.125	15.75	17.125
12	12.75	16.125	16.625	16.50	18.00	19.625

Bolt Torque ASME B16 5 Flanges

Pipe Flange Size Inch	Pipe Flange Size MM	(Maximum) Radial Projection
Pipe Flange Size Inch	Pipe Flange Size MM	No Deeper Than the Bottom In Millimeter	Deeper Than the Bottom In Millimeter
1/2	15	3.0	1.5
3/4	20	3.0	1.5
1	25	3.0	1.5
1 1/4	32	3.0	1.5
1 1/2	40	3.0	1.5
2	50	3.0	1.5
2 1/2	65	3.0	1.5
3	80	4.5	1.5
3 1/2	90	6.0	3.0
4	100	6.0	3.0
5	125	6.0	3.0
6	150	6.0	3.0
8	200	8.0	4.5
10	250	8.0	4.5
12	300	8.0	4.5
14	350	8.0	4.5
16	400	10.0	4.5
18	450	12.0	6.0

ASME B16.5 Flange Thickness Tolerance

Normal Size Of Steel Pipe	Outer Diameter (O.D.)	10 Schedule	20 Schedule	30 Schedule	STD Wall	40 Schedule	60 Schedule	EXT Hvy	80 Schedule	100 Schedule	120 Schedule	140 Schedule	160 Schedule	XX Hvy
½	0.84	0.083	...	...	0.109	0.109	...	0.147	0.147	...	...	...	0.188	0.294
¾	1.05	0.083	...	...	0.113	0.113	...	0.154	0.154	...	...	...	0.219	0.308
1	1.315	0.109	...	...	0.133	0.133	...	0.179	0.179	...	...	...	0.25	0.358
1 ¼	1.66	0.109	...	...	0.14	0.14	...	0.191	0.191	...	...	...	0.25	0.382
1 ½	1.9	0.109	...	...	0.145	0.145	...	0.2	0.2	...	...	...	0.281	0.4
2	2.375	0.109	...	...	0.154	0.154	...	0.218	0.218	...	...	...	0.344	0.436
2 ½	2.875	0.12	...	...	0.203	0.203	...	0.276	0.276	...	...	...	0.375	0.552
3	3.5	0.12	-	-	0.216	0.216	-	0.3	0.3	-	-	-	0.438	0.6
3 ½	4	0.12	-	-	0.226	0.226	-	0.318	0.318	-	-	-	-	0.636
4	4.5	0.12	-	-	0.237	0.237	-	0.337	0.337	-	0.438	-	0.531	0.674
5	5.563	0.134	-	-	0.258	0.258	-	0.375	0.375	-	0.5	-	0.625	0.75
6	6.625	0.134	-	-	0.28	0.28	-	0.432	0.432	-	0.562	-	0.719	0.864
8	8.625	0.148	0.25	0.277	0.322	0.322	0.406	0.5	0.5	0.594	0.719	0.812	0.906	0.875
10	10.75	0.165	0.25	0.307	0.365	0.365	0.5	0.5	0.594	0.719	0.844	1	1.125	1
12	12.75	0.18	0.25	0.33	0.375	0.406	0.562	0.5	0.688	0.844	1	1.125	1.312	1
14	14	0.25	0.312	0.375	0.375	0.438	0.594	0.5	0.75	0.938	1.094	1.25	1.406	-
16	16	0.25	0.312	0.375	0.375	0.5	0.656	0.5	0.844	1.031	1.219	1.438	1.594	-
18	18	0.25	0.312	0.438	0.375	0.562	0.75	0.5	0.938	1.156	1.375	1.562	1.781	-
20	20	0.25	0.375	0.5	0.375	0.594	0.812	0.5	1.031	1.281	1.5	1.75	1.969	-
22	22	0.25	-	-	0.375	-	-	0.5	-	-	-	-	-	-
24	24	0.25	0.375	0.562	0.375	0.688	0.969	0.5	1.219	1.531	1.812	2.062	2.344	-
26	26	-	-	-	0.375	-	-	0.5	-	-	-	-	-	-
30	30	0.312	0.5	0.625	0.375	-	-	0.5	-	-	-	-	-	-

Flanges

Pipes & fittings

Forged Fittings

Fasteners

ASME B16.5 Flange

B16.5 Flange Forging

ASME B16.5 Flange Dimensions

Types Of ASME B16.5 Flange

Stainless Steel Reducing Flange

Stainless Steel Weld Neck Flange

Spades Ring Spacers Flanges

Stainless Steel Blind Flange

Carbon Steel Orifice Flange

ASME B16.5 Square Flanges

Spectacle Blind Flanges

Stainless Steel Slip On Flange

Stainless Steel Plate Flange

Nipo Flange

Studding Flange

ASME B16.47 Flange

Flange Facing

ASME B16.5 Standard

API Flange

EN 1092-1 Flange

DIN 2633 Flange

Australian Standard Flanges

Korean Standard Flanges

Norwegian Standard Flanges

BS10 Table D Flange

MSS SP-44 Flange

UNI Flange

ASME B1Pipe Flange Material

ANSI B16.5 Flange Equivalent Grades

ANSI B16 5 Class 900 Flange Dimensions

ANSI B16 5 Class 1500 Flange Dimensions

ASME B16.5 Class 2500 Pressure Rating

ANSI B16.5 Class 300 Flange Pressure Rating

ASME B16.5 Flange Sizes

ANSI B16.5 Material

Stainless Steel Flanges Grade

Stainless Steel 304 Flanges

Stainless Steel 304L Flanges

Stainless Steel 304H Flanges

Stainless Steel 310 Flanges

Stainless Steel 316 Flanges

Stainless Steel 316L Flanges

Stainless Steel 321 Flanges

Stainless Steel 347 Flanges

Stainless Steel 410 Flanges

Carbon Steel Flanges Grades

ASTM A105 Flange

ASTM A350 LF1 Flanges

ASTM A350 LF2 Flanges

ASTM A350 LF3 Flanges

ASTM A350 LF5 Flanges

ASTM A350 LF6 Flanges

ASTM A350 LF 787 Flanges

ASTM A694 F42 Flange

ASTM A694 F46 Flange

Alloy Steel Flanges Grades

ASTM A182 F1 Flange

ASTM A182 F5 Flange

ASTM A182 F9 Flange

ASTM A182 F22 Flange

ASTM A182 F91 Flange

ASTM A182 F92 Flange

ASTM A707 L3 CL3 Flanges

ASTM A182 F11 Flange

B16.5 Flange Dimensions Tolerance

Flange Application

ASME B16.5 Ff Flange Dimensions

ANSI B16.5 Flange Surface Finish Chart

ASME B16.5 Flange Specification

ASME B16.5 Flange Weight Chart

ASME B16 5 Gasket Dimensions

Bolt Torque ASME B16 5 Flanges

ASME B16.5 Flange Thickness Tolerance

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