ASME B16.11 - Forged Fittings, Socket-Welding and Threaded

ANSI B16. 11 Fittings Pressure Ratings

Threaded Fittings: Class 2000, 3000, 6000 psi

Socket-Weld Fittings: Class 3000, 6000, 9000 psi

ANSI B 16.11 Pipe Fittings Types

Elbows: 45°, 90°

Tees, Crosses

Couplings, Reducing Couplings

Caps, Bosses

Plug, Bushing

Nipple

Contents

ASME B16.11 Specification For Forged Fittings, Socket-Welding and Threaded

ASME B16.11 Socket-Welding Elbows, Tees, and Crosses

ASME B16.11 Threaded 45°Elbow, 90°Elbow, Tee, Cross

ASME B16.11 Street 90°Elbows

ASME B16.11 Cap, Half-Coupling, Threadolet, Coupling

ASME B16.11 SW Coupling, Half Coupling, BOSS, Cap, Lateral

ASME B16.11 Square Head Plug, Flush Bushing, Round Head Plug, Hex Head Plug, Hex Head Bushing

ASME B16.11 Concentric Eccentric Swaged Nipple

ASME B16.11 Sockolet and Threadolet

ASME B16.11 Weldolet

ASME B16.11 Socket-Welding Elbows, Tees, and Crosses

ASTM B1611 Socket-Welding Elbows Tees and Crosses

Nominal size		Socket bore diameter	Bore diameter of fittings			Socket wall thickness						Body wall			Depth of socket	Center to bottom of socket
DN	NPS	B	D			C						G_min			J_min	A
			3000	6000	9000	3000		6000		9000		3000	6000	9000		90°Elbow,Tee,Cross			45°Elbow
			3000	6000	9000	Avg	Min	Avg	Min	Avg	Min	3000	6000	9000		3000	6000	9000	3000	6000	9000
6	1/8	10.9	6.1	3.2	-	3.18	3.18	3.96	3.43	-	-	2.41	3.15	-	9.5	11.0	11.0	-	8.0	8.0	-
8	1/4	14.3	8.5	5.6	-	3.78	3.30	4.60	4.01	-	-	3.02	3.68	-	9.5	11.0	13.5	-	8.0	8.0	-
10	3/8	17.7	11.8	8.4	-	4.01	3.50	5.03	4.37	-	-	3.20	4.01	-	9.5	13.5	15.5	-	8.0	11.0	-
15	1/2	21.9	15.0	11.0	5.6	4.67	4.09	5.97	5.18	9.53	8.18	3.73	4.78	7.47	9.5	15.5	19.0	25.5	11.0	12.5	15.5
20	3/4	27.3	20.2	14.8	10.3	4.90	4.27	6.96	6.04	9.78	8.56	3.91	5.56	7.82	12.5	19.0	22.5	28.5	13.0	14.0	19.0
25	1	34.0	25.9	19.9	14.4	5.69	4.98	7.92	6.93	11.38	9.96	4.55	6.35	9.09	12.5	22.5	27.0	32.0	14.0	17.5	20.5
32	1_1/4	42.8	34.3	28.7	22.0	6.07	5.28	7.92	6.93	12.14	10.62	4.85	6.35	9.70	12.5	27.0	32.0	35.0	17.5	20.5	22.5
40	1_1/2	48.9	40.1	33.2	27.2	6.35	5.54	8.92	7.80	12.70	11.12	5.08	7.14	10.15	12.5	32.0	38.0	38.0	20.5	25.5	25.5
50	2	61.2	51.7	42.1	37.4	6.93	6.04	10.92	9.50	13.84	12.12	5.54	8.74	11.07	16.0	38.0	41.0	54.0	25.5	28.5	28.5
65	2_1/2	73.9	61.2	-	-	8.76	7.62	-	-	-	-	7.01	-	-	16.0	41.0	-	-	28.5	-	-
80	3	89.9	76.4	-	-	9.52	8.30	-	-	-	-	7.62	-	-	16.0	57.0	-	-	32.0	-	-
100	4	115.5	100.7	-	-	10.69	9.35	-	-	-	-	8.56	-	-	19.0	66.5	-	-	41.0	-	-

NOTE: Dimensions are in millimeters.

ASME B16.11 Threaded 45°Elbow, 90°Elbow, Tee, Cross

ASME B1611 Threaded 45 Elbow 90 Elbow Tee Cross

Nominal size		Center to end						Outside diameter to band			Wall thickness			Length of thread
DN	NPS	A						H			G_min			L5_min	L2_min
		90° Elbows tees Crosses			45° Elbows			H			G_min
		2000	3000	6000	2000	3000	6000	2000	3000	6000	2000	3000	6000
6	1/8	21	21	25	17	17	19	22	22	25	3.18	3.18	6.35	6.4	6.7
8	1/4	21	25	28	17	19	22	22	25	33	3.18	3.30	6.60	8.1	10.2
10	3/8	25	28	33	19	22	25	25	33	38	3.18	3.51	6.98	9.1	10.4
15	1/2	28	33	38	22	25	28	33	38	46	3.18	4.09	8.15	10.9	13.6
20	3/4	33	38	44	25	28	33	38	46	56	3.18	4.32	8.53	12.7	13.9
25	1	38	44	51	28	33	35	46	56	62	3.68	4.98	9.93	14.7	17.3
32	1_1/4	44	51	60	33	35	43	56	62	75	3.89	5.28	10.59	17.0	18.0
40	1_1/2	51	60	64	35	43	44	62	75	84	4.01	5.56	11.07	17.8	18.4
50	2	60	64	83	43	44	52	75	84	102	4.27	7.14	12.09	19.0	19.2
65	2_1/2	76	83	95	52	52	64	92	102	121	5.61	7.65	15.29	23.6	28.9
80	3	86	95	106	64	64	79	109	121	146	5.99	8.84	16.64	25.9	30.5
100	4	106	114	114	79	79	79	146	152	152	6.55	11.18	18.67	27.7	33.0

ASME B16.11 Street 90°Elbows

ASME B1611 Thread Street 90 Elbows

Nominal size		Center to female End		Center to male End		Outside diameter to band		Wall thickness		Wall thickness		Length of female thread		Length of male thread
DN	NPS	A		J		H		G_1min		G_2min		L_5min	L_2min	L_min
DN	NPS	3000	6000	3000	6000	3000	6000	3000	6000	3000	6000	L_5min	L_2min	L_min
6	1/8	19	22	25	32	19	25	3.18	5.08	2.74	4.22	6.4	6.7	10
8	1/4	22	25	32	38	25	32	3.30	5.66	3.22	5.28	8.1	10.2	11
10	3/8	25	28	38	41	32	38	3.51	6.98	3.50	5.59	9.1	10.4	13
15	1/2	28	35	41	48	38	44	4.09	8.15	4.16	6.53	10.9	13.6	14
20	3/4	35	44	48	57	44	51	4.32	8.53	4.88	6.86	12.7	13.9	16
25	1	44	51	57	66	51	62	4.98	9.93	5.56	7.95	14.7	17.3	19
32	11/4	51	54	66	71	62	70	5.28	10.59	5.56	8.48	17.0	18.0	21
40	11/2	54	64	71	84	70	84	5.56	11.07	6.25	8.89	17.8	18.4	21
50	2	64	83	84	105	84	102	7.14	12.09	7.64	9.70	19.0	19.2	22

ASME B16.11 Cap, Half-Coupling, Threadolet, Coupling

ASME B1611 Threaded Cap Half-Coupling Threadolet Coupling

Nominal size		End-to-end	End-to-end		Outside diameter		End wall		Length of thread
DN	NPS	W	P		D		G		L_5min	L_2min
DN	NPS	3000 & 6000	3000	6000	3000	3000	3000	3000	L_5min	L_2min
6	1/8	32	19	-	16	22	4.8	-	6.4	6.7
8	1/4	35	25	27	19	25	4.8	6.4	8.1	10.2
10	3/8	38	25	27	22	32	4.8	6.4	9.1	10.4
15	1/2	48	32	33	28	38	6.4	7.9	10.9	13.6
20	3/4	51	37	38	35	44	6.4	7.9	12.7	13.9
25	1	60	41	43	44	57	9.7	11.2	14.7	17.3
32	1_1/4	67	44	46	57	64	9.7	11.2	17.0	18.0
40	1_1/2	79	44	48	64	76	11.2	12.7	17.8	18.4
50	2	86	48	51	76	92	12.7	15.7	19.0	19.2
65	2_1/2	92	60	64	92	108	15.7	19.0	23.6	28.9
80	3	108	65	68	108	127	19.0	22.4	25.9	30.5
100	4	121	68	75	140	159	22.4	28.4	27.7	33.0

ASME B16.11 SW Coupling, Half Coupling, BOSS, Cap, Lateral

ASME B1611 SW Coupling SW Half Coupling BOSS SW Cap Lateral

Nominal size		Socket bore diameter	Bore diameter of fittings			Socket wall thickness						Body wall			Min. Depth of socket	Laying lengths	Laying lengths	End Wall thickness			Center to bottom of socket
DN	NPS	B	D			C						G_min			J_min	E	F	K_min			A		H
			3000	6000	9000	3000		6000		9000		3000	6000	9000				3000	6000	9000	3000	6000	3000	6000
			3000	6000	9000	Avg	Min	Avg	Min	Avg	Min	3000	6000	9000				3000	6000	9000	3000	6000	3000	6000
6	1/8	10.9	6.1	3.2	-	3.18	3.18	3.96	3.43	-	-	2.41	3.15	-	9.5	6.5	16.0	4.8	6.4	-	-	-	-	-
8	1/4	14.3	8.5	5.6	-	3.78	3.30	4.60	4.01	-	-	3.03	3.68	-	9.5	6.5	16.0	4.8	6.4	-	-	-	-	-
10	3/8	17.7	11.8	8.4	-	4.01	3.50	5.03	4.37	-	-	3.20	4.01	-	9.5	6.5	17.5	4.8	6.4	-	37	-	9.5	-
15	1/2	21.9	15.0	11.0	5.6	4.67	4.09	5.97	5.18	9.53	8.18	3.73	4.78	7.47	9.5	9.5	22.5	6.4	7.9	11.2	41	51	9.5	11
20	3/4	27.3	20.2	14.8	10.3	4.90	4.27	6.96	6.04	9.78	8.56	3.91	5.56	7.82	12.5	9.5	24.0	6.4	7.9	12.7	51	60	11	13
25	1	34.0	25.9	19.9	14.4	5.69	4.98	7.92	6.93	11.38	9.96	4.55	6.35	9.09	12.5	12.5	28.5	9.6	11.2	14.2	60	71	13	16
32	11/4	42.8	34.3	28.7	22.0	6.07	5.28	7.92	6.93	12.14	10.62	4.85	6.35	9.70	12.5	12.5	30.0	9.6	11.2	14.2	71	81	16	17
40	11/2	48.9	40.1	33.2	27.2	6.35	5.54	8.92	7.80	12.70	11.12	5.08	7.14	10.15	12.5	12.5	32.0	11.2	12.7	15.7	81	98	17	21
50	2	61.2	51.7	42.1	37.4	6.93	6.04	10.92	9.50	13.85	12.12	5.54	8.74	11.07	16.0	19.0	41.0	12.7	15.7	19.0	98	151	21	30
65	21/2	73.9	61.2	-	-	8.76	7.62	-	-		-	7.01	-	-	16.0	19.0	43.0	15.7	19.0	-	151	-	30	-
80	3	89.9	76.4	-	-	9.52	8.30	-	-		-	7.63	-	-	16.0	19.0	44.5	19.0	32.4	-	184	-	57	-
100	4	115.5	100.7	-	-	10.69	9.35	-	-		-	8.56	-	-	19.0	19.0	48.0	22.4	28.4	-	201	-	66	-

ASME B16.11 Square Head Plug, Flush Bushing, Round Head Plug, Hex Head Plug, Hex Head Bushing

ASME B1611 Plug Bushing

Nominal size		Length	Square height	Width flats	Head diameter	Length	Hex height	Hex height	Hex height
DN	NPS	A_min	B_min	C_min	E_min	D_min	H_min	G_min	F_min
6	1/8	10	6	7	10	35	6	一	11
8	1/4	11	6	10	14	41	6	3	16
10	3/8	13	8	11	18	41	8	4	18
15	1/2	14	10	14	21	44	8	5	22
20	3/4	16	11	16	27	44	10	6	27
25	1	19	13	21	33	51	10	6	36
32	1_1/4	21	14	24	43	51	14	7	46
40	1_1/2	21	16	28	48	51	16	8	50
50	2	22	18	32	60	64	18	9	65
65	2_1/2	27	19	36	73	70	19	10	75
80	3	28	21	41	89	70	21	10	90
100	4	32	25	65	114	76	25	13	115

ASME B16.11 Concentric Eccentric Swaged Nipple

ASME B1611 Concentric Eccentric Swaged Nipple

Nominal size		OD at end	Length of small end	End to end
DN	NPS	OD₁×OD₂	SL _min	A
8×6	1/4×1/8	13.7×10.3	20	57
10×6	3/8×1/8	17.1×10.3	20	64
10×8	3/8×1/4	17.1×13.7	20	64
15×6	1/2×1/8	21.3×10.3	20	70
15×8	1/2×1/4	21.3×13.7	20
15×10	1/2×3/8	21.3×17.1	20
20×6	3/4×1/8	26.7×10.3	20	76
20×8	3/4×1/4	26.7×13.7	20
20×10	3/4×3/8	26.7×17.1	22
20×15	3/4×1/2	26.7×21.3	22
25×6	1×1/8	33.4×10.3	20	89
25×8	1×1/4	33.4×13.7	20
25×10	1×3/8	33.4×17.1	22
25×15	1×1/2	33.4×21.3	22
25×20	1×3/4	33.4×26.7	22
32×6	11/4×1/8	42.2×10.3	20	102
32×8	11/4×1/4	42.2×13.7	20
32×10	11/4×3/8	42.2×17.1	22
32×15	11/4×1/2	42.2×21.3	22
32×20	11/4×3/4	42.2×26.7	25
32×25	11/4×1	42.2×33.4	25
40×6	11/2×1/8	48.3×10.3	20	114
40×8	11/2×1/4	48.3×13.7	20
40×10	11/2×3/8	48.3×17.1	22
40×15	11/2×1/2	48.3×21.3	25
40×20	11/2×3/4	48.3×26.7	25
40×25	11/2×1	48.3×33.4	25
40×32	11/2×11/4	48.3×42.2	25
50×6	2×1/8	60.3×10.3	20	165
50×8	2×1/4	60.3×13.7	22
50×10	2×3/8	60.3×17.1	22
50×15	2×1/2	60.3×21.3	25
50×20	2×3/4	60.3×26.7	30
50×25	2×1	60.3×33.4	30
50×32	2×11/4	60.3×42.2	30
50×40	2×11/2	60.3×48.3	30
100×40	4×11/2	114.3×48.3	40	229
100×50	4×2	114.3×60.3	45
100×65	4×21/2	114.3×73.0	45
100×80	4×3	114.3×88.9	45
100×90	4×31/2	114.3×101.6	45
125×8	5×1/4	141.3×13.7	25	279
125×10	5×3/8	141.3×17.1	25
125×15	5×1/2	141.3×21.3	25
125×20	5×3/4	141.3×26.7	30
125×25	5×1	141.3×33.4	30
125×32	5×11/4	141.3×42.2	40
125×40	5×11/2	141.3×48.3	40
125×50	5×2	141.3×60.3	45
125×65	5×21/2	141.3×73.0	45
125×80	5×3	141.3×88.9	45
125×90	5×31/2	141.3×101.6	45
125×100	5×4	141.3×114.3	50
150×15	6×1/2	168.3×21.3	30	304
150×20	6×3/4	168.3×26.7	30
150×25	6×1	168.3×33.4	40
150×32	6×11/4	168.3×42.2	40
150×40	6×11/2	168.3×48.3	45
150×50	6×2	168.3×60.3	45
150×65	6×21/2	168.3×73.0	45
150×80	6×3	168.3×88.9	45
150×90	6×31/2	168.3×101.6	50
150×100	6×4	168.3×114.3	50
150×125	6×5	168.3×141.3	60

ASME B16.11 Sockolet and Threadolet

ASME B16.11 SOCKOLET

Nominal size		Branch pipe nominal size		Depth of socket	Face of fitting to crotch		Diameter of fitting		Socket wall thickness		Hole diameter
DN	NPS	DN	NPS	J_min	A_max		D_max		C_min		d1 nom
DN	NPS	DN	NPS	J_min	3000	6000	3000	6000	3000	6000	3000	6000
8-900	1/4-36	6	1/8	9.5	10	一	27	一	3.18	一	16	一
10-900	3/8-36	8	1/4	9.5	10	一	27	一	3.78	一	16	一
15-900	1/2-36	10	3/8	9.5	13	一	30	一	4.01	一	19	一
20-900	3/4-36	15	1/2	9.5	16	24	38	47	4.67	5.97	24	19
25-900	1-36	20	3/4	12.5	16	25	47	53	4.90	6.96	30	25
32-900	1_1/4-36	25	1	12.5	22	29	56	63	5.69	7.92	36	33
40-900	1_1/2-36	32	1_1/4	12.5	22	30	66	74	6.07	7.92	45	38
50-900	2-36	40	1_1/2	12.5	24	32	75	83	6.35	8.92	51	49
65-900	2_1/2-36	50	2	16.0	24	37	90	104	6.93	10.92	65	59
80-900	3-36	65	2_1/2	16.0	25	一	105	一	8.76	一	76	一
100-900	4-36	80	3	16.0	30	一	124	一	9.52	一	94	一
125-900	5-36	100	4	19.0	30	一	154	一	10.69	一	121	一

ASME B16.11 THREADOLET

Run pipe nominal size		Branch pipe nominal size		Face of fitting to crotch		Diameter of fitting		Diameter a tend of branch pipe		Length of thread	Hole diameter
DN	NPS	DN	NPS	A		D1_min		D2_min		L2_min	d1 nom
DN	NPS	DN	NPS	3000	6000	3000	6000	3000	6000	L2_min	3000	6000
8-900	1/4-36	6	1/8	19	一	27	一	22	一	6.7	16	一
10-900	3/8-36	8	1/4	19	一	27	一	22	一	10.2	16	一
15-900	1/2-36	10	3/8	21	一	30	一	25	一	10.4	19	一
20-900	3/4-36	15	1/2	25	32	38	45	33	42	13.6	24	19
25-900	1-36	20	3/4	27	37	47	52	39	48	13.9	30	25
32-900	1_1/4-36	25	1	33	40	56	63	48	58	17.3	36	33
40-900	1_1/2-36	32	1_1/4	33	41	66	72	58	67	18.0	45	38
50-900	2-36	40	1_1/2	35	43	75	83	64	77	18.4	51	49
65-900	2_1/2-36	50	2	38	52	90	104	77	93	19.2	65	59
80-900	3-36	65	2_1/2	46	一	105	一	94	一	28.9	76	一
100-900	4-36	80	3	51	一	124	一	114	一	30.5	94	一
125-900	5-36	100	4	57	一	154	一	140	一	33.0	121	一

ASME B16.11 Weldolet

Run pipe nominal size		Branch pipe nominal size		Lengths			Diameter of fitting			Hole diameter
DN	NPS	DN	NPS	A			D2min			d1nom
DN	NPS	DN	NPS	STD	XS	Sch160	STD	XS	Sch160	STD	XS	Sch160
8-900	1/4-36	6	1/8	16	16	一	24	42	一	16	16	一
10-900	3/8-36	8	1/4	16	16	一	26	26	一	16	16	一
15-900	1/2-36	10	3/8	19	19	一	30	30	一	19	19	一
20-900	3/4-36	15	1/2	19	19	28	36	36	36	24	24	14
25-900	1-36	20	3/4	22	22	32	43	43	46	30	30	19
32-900	11/4-36	25	1	27	27	38	55	55	51	36	36	25
40-900	11/2-36	32	11/4	32	32	44	66	66	63	45	45	33
50-900	2-36	40	11/2	33	33	51	74	74	71	51	51	38
65-900	21/2-36	50	2	38	38	55	90	90	82	65	65	43
80-900	3-36	65	21/2	41	41	62	104	104	98	76	76	54
90-900	31/2-36	80	3	44	44	73	124	124	122	93	93	73
100-900	4-36	90	31/2	48	48	一	138	138	一	113	113	一
125-900	5-36	100	4	51	51	84	154	154	154	120	120	98
150-900	6-36	125	5	57	57	94	187	187	188	141	141	122
200-900	8-36	150	6	60	78	105	213	227	222	170	170	146
250-900	10-36	200	8	70	99	一	265	292	一	220	220	一
300-900	12-36	250	10	78	94	一	323	325	一	275	265	一
350-900	14-36	300	12	86	103	一	379	381	一	325	317	一
400-900	16-36	350	14	89	100	一	411	416	一	357	351	一
450-900	18-36	400	16	94	106		465	468	一	408	403
500-900	20-36	450	18	97	111	一	522	525	一	459	455	一
550-900	22-36	500	20	102	119	一	573	584	一	508	509	一
650-900	26-36	600	24	116	140	一	690	708	一	614	612	一

Correlation of Fittings Class With Schedule Number or Wall Designation of Pipe for Calculation of Ratings

Class Designation of Fittings

Type of Fitting

Pipe Used for Rating Basis

Schedule No.

Wall Designation

2000

3000

6000

3000

6000

9000

Threaded

Socket-welding

160

...

160

...

XXS

...

XXS

Nominal Wall Thickness of Schedule 160 and Double Extra Strong Pipe

NPS

Schedule 160

XXS

In.

1/8

1/4

3/8

3.15

3.68

4.01

0.124

0.145

0.158

4.83

6.05

6.40

0.190

0.238

0.252

ASME B16.11 - Forged Fittings, Socket-Welding and Threaded

ASME B16.11 Socket-Welding Elbows, Tees, and Crosses

ASME B16.11 Threaded 45°Elbow, 90°Elbow, Tee, Cross

ASME B16.11 Street 90°Elbows

ASME B16.11 Cap, Half-Coupling, Threadolet, Coupling

ASME B16.11 SW Coupling, Half Coupling, BOSS, Cap, Lateral

ASME B16.11 Square Head Plug, Flush Bushing, Round Head Plug, Hex Head Plug, Hex Head Bushing

ASME B16.11 Concentric Eccentric Swaged Nipple

ASME B16.11 Sockolet and Threadolet

ASME B16.11 Weldolet

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