Home / Products / Butt-Welding Fittings / ANSI/ASME B16.9 Butt weld Stub End

We have in store for our clients, a quality assured range of stubend long & short fittings that are in compliance with the industry accepted standards and norms. These fittings are hot dip galvanized, epoxy coated and electro polished for durability purpose. We also provide these fittings along with mill test certificate as per EN B16.9 to suit the quality conscious approach of our clients.

ANSI/ASME B16.9 Butt weld Stub End

Designed in accordance with B16.9 (ASA) or MSSSP-43. Available in all sizes and material grades.

Standards:	ANSI - B 16.9 ASTM A403 - ASME SA403 - 'Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings' API 590-605 ASME B16.9 - 'Factory-Made Wrought Buttwelding Fittings'' ASME B16.25 - 'Buttwelding Ends' ASME B16.28 - 'Wrought Steel Buttwelding Short Radius Elbows and Returns' MSS SP-43 - 'Wrought and Fabricated Butt-Welding Fittings for Low Pressure, Corrosion Resistant Applications'
Variations:	Welded & Seamless MSS-A; MSS-B; MSS-C Short type & Long type
Dimensions:	Outside diameter : 1/2" à 24" (21,34 - 609,5 mm) Thickness: SCH 5S, 10S, 40S (STD), 80S (XS), 160, XXS (1,65 - 59.51 mm)
Materials:	Monel, Nickel, Inconel, Hastalloy, Titanium, Tantalum, Stainless Steel, Alloy Steel, Carbon Steel, Cupro-Nickel 90/10 & 70/30 Stainless Steel ASME / ASTM SA / A403 SA / A 774 WP-S, WP-W, WP-WX, 304, 304L, 316, 316L, 304/304L,  316/316L, DIN 1.4301, DIN1.4306, DIN 1.4401, DIN 1.4404
Type:	Butt Weld (BW)
Thickness:	Schedule 5S, 10S, 20S, S10, S20, S30, STD, 40S, S40, S60, XS, 80S, S80, S100, S120, S140, S160, XXS and etc.
Dimension:	ANSI B16.9, ANSI B16.28, MSS-SP-43 Type A, MSS-SP-43 Type B, JIS B2312, JIS B2313

Dimensions

Nominal Pipe Size	Outside diameter of barrel		Length (F)		Radius (R)	Diameter (G)
	Minimum	Maximum	Long Pattern	Short Pattern
1/2"	20.5	22.8	76	51	3	35
3/4"	25.9	28.1	76	51	3	43
1"	32.6	35.0	102	51	3	51
1 1/4"	41.4	43.6	102	51	5	64
1 1/2"	47.5	49.9	102	51	6	74
2"	59.5	62.4	152	64	8	92
2 1/2"	72.2	75.3	152	64	8	105
3"	88.1	91.3	152	64	10	127
3 1/2"	100.8	104.0	152	76	10	140
4"	113.5	116.7	152	76	11	157
5"	140.5	144.3	203	76	11	186
6"	167.5	171.3	203	89	13	216
8"	218.3	222.1	203	102	13	270
10"	272.3	277.2	254	127	13	324
12"	323.1	328.0	254	152	13	381
14"	354.8	359.9	305	152	13	413
16"	405.6	411.0	305	152	13	470
18"	456.0	462.0	305	152	13	533
20"	507.0	514.0	305	152	13	584
22"	558.0	565.0	305	152	13	641
24"	609.0	616.0	305	152	13	692

The dimensions are in millimeters
Source : ASME B16.9 - 2007

STUB ENDS - Ansi and MSS SP-43 dimensions

STUB ENDS - ANSI B 16.9 and MSS SP-43 dimension
inches	ND	mm	Diameter of lap	Radius of fillet		Length F
D			G	R	R1	MSS SP43	ANSI B16.9
1/2	15	21,34	34,92	3,17	0,80	50,80	76,20
3/4	20	26,67	42,86	3,17	0,80	50,80	76,20
1	25	33,40	50,80	3,17	0,80	50,80	101,60
1 1/4	32	42,16	63,50	4,76	0,80	50,80	101,60
1 1/2	40	48,26	73,00	6,35	0,80	50,80	101,60
2	50	60,32	92,10	7,93	0,80	63,50	152,40
2 1/2	65	73,02	104,80	7,93	0,80	63,50	152,40
3	80	88,90	127,00	9,52	0,80	63,50	152,40
3 1/2	90	101,60	139,70	9,52	0,80	76,20	152,40
4	100	114,30	157,20	11,11	0,80	76,20	152,40
5	125	141,30	185,70	11,11	1,58	76,20	203,20
6	150	168,27	215,90	12,70	1,58	88,90	203,20
8	200	219,07	269,80	12,70	1,58	101,60	203,20
10	250	273,05	323,80	12,70	1,58	127,00	254,00
12	300	323,85	381,00	12,70	1,58	152,40	254,00
14	350	355,60	412,70	12,70	1,58	152,40	304,80
16	400	406,40	469,90	12,70	1,58	152,40	304,80
18	450	457,20	533,40	12,70	1,58	152,40	304,80
20	500	508,00	584,20	12,70	1,58	152,40	304,80
22	550	558,80	641,30	12,70	1,58	152,40	304,80
24	600	609,60	692,10	12,70	1,58	152,40	304,80
The lap thickness T shall not be less than nominal pipe wall thickness t

STUB ENDS - Ansi 16.9 tolerances

DIMENSIONAL TOLERANCES - STUB ENDS
For all fittings				Stub Ends
Nominal Pipe Size (NPS)	Outside Ø at Bevel	Indide Ø at End	Wall Thickness t / t1	O.D. of Lap G	Fillet Radius of Lap - R	Overall Length. - F
1/2 a 2 1/2	1	0,8	Not	+0 -1	+0 -1	2
3 a 3 1/2	1	1,6	less	+0 -1	+0 -1	2
4	+2 -1	1,6	than	+0 -1	+0 -2	2
5 a 6	+3 -1	1,6	87,50%	+0 -1	+0 -2	2
8	2	1,6	of nominal	+0 -1	+0 -2	2
10	+4 -3	3,2	tickness	+0 -2	+0 -2	2
12 to 18	+4 -3	3,2		+0 -2	+0 -2	3
20 a 24	+6 -5	4,8		+0 -2	+0 -2	3
26 a 30	+7 -5	4,8
32 a 48	+7 -5	4,8

STUB ENDS - Weights

NPS inches	STUB ENDS
	Sch. 5S	Sch. 10S	Sch. 40S	Sch. 80S
1/2	0.06	0.08	0.12	0.13
3/4	0.07	0.09	0.15	0.17
1	0.09	0.15	0.20	0.25
1 1/4	0.13	0.20	0.30	0.35
1 1/2	0.16	0.25	0.38	0.46
2	0.25	0.40	0.55	0.75
2 1/2	0.35	0.50	0.80	1.00
3	0.50	0.60	1.10	1.50
4	0.70	1.00	1.80	2.50
5	1.00	1.25	2.50	3.50
6	1.60	1.95	3.70	5.50
8	2.50	3.10	5.90	10.0
10	4.00	4.90	10.5	14.0
12	6.60	7.10	15.0	20.0
14	6.40	7.80	15.5	20.5
16	7.90	9.00	18.0	24.0
18	9.30	10.5	21.0	28.0
20	12.0	13.5	23.5	31.0
24	16.5	19.0	28.5	38.0
Approximate weights in kg, density 8 kg/dm3

 

STUB ENDS - End welding bevels

NOMINAL PIPE SIZE (Inches)	NB	OD	THICKNESS	SCH 10	SCH 20	SCH 30	SCH 40	SCH 80
1/2	15NB	21.30	1.65	2.11	__	2.41	2.77	3.73
3/4	20NB	26.70	1.65	2.11	__	2.41	2.87	3.91
1	25NB	33.40	1.65	2.77	__	2.90	3.38	4.55
1 1/4	32NB	42.20	1.65	2.77	__	2.97	3.56	4.85
1 1/2	40NB	48.30	1.65	2.77	__	3.18	3.68	5.08
2	50NB	60.30	1.65	2.77	__	3.18	3.91	5.54
2 1/2	65NB	73.00	2.11	3.05	__	4.78	5.16	7.01
3	80NB	88.90	2.11	3.05	__	4.78	5.49	7.62
3 1/2	90NB	101.60	2.11	3.05	__	4.78	5.74	8.08
4	100NB	114.30	2.11	3.05	__	4.78	6.02	8.56
5	125NB	141.30	2.77	3.40	__	__	6.55	9.53
6	150NB	168.30	2.77	3.40	__	__	7.11	10.97
8	200NB	219.10	2.77	3.76	6.35	7.04	8.18	12.70
10	250NB	273.00	3.40	4.19	6.35	7.80	9.27	15.09
12	300NB	323.80	3.96	4.57	6.35	8.38	10.31	17.48
14	350NB	355.60	3.96	6.35	7.92	9.53	11.13	19.05
16	400NB	406.40	4.19	6.35	7.92	9.53	12.7	21.44
18	450NB	457.00	4.19	6.35	7.92	11.13	14.27	23.83
20	500NB	508.00	4.78	6.35	9.53	12.70	15.09	26.19
22	550NB	559.00	4.78	6.35	9.53	12.70	__	28.58
24	600NB	610.00	5.54	6.35	9.53	14.27	17.48	30.96

STUB ENDS SHORT LENGTH ASTM A403/A815 ASME B16.9

Facing: 125-250 RMS (smooth finish)

welded version = w 
= s seamless execution

Nominal	Schedule	D	t	G	F	R. Max.	kg / St.
1/2 "	10s	21.3	2.11	34.9	50.8	3.18	0.07	s
	40s		2.77				0.09	s
3/4 "	10s	26.7	2.11	42.9	50.8	3.18	0.10	s
	40s		2.87				0.12	s
1 "	10s	33.4	2.77	50.8	50.8	3.18	0.16	s / w
	40s		3.38				0.17	s
1 1/4 "	10s	42.2	2.77	63.5	50.8	4.76	0.22	s
	40s		3.56				0.25	s
1 1/2 "	10s	48.3	2.77	73.0	50.8	6.35	0.25	s / w
	40s		3.68				0.31	s
2 "	10s	60.3	2.77	92.1	63.5	7.94	0.43	s / w
	40s		3.91				0.61	s
2 1/2 "	10s	73.0	3.05	104.8	63.5	7.94	0.57	s / w
	40s		5.16				0.80	s
3 "	10s	88.9	3.05	127.0	63.5	9.53	0.73	s / w
	40s		5.49				1.13	s
4 "	10s	114.3	3.05	157.2	76.2	11.11	1.09	s / w
	40s		6.02				1.87	s
5 "	10s	141.3	3.40	185.7	76.2	11.11	1.47	s / w
	40s		6.55				2.28	s
6 "	10s	168.3	3.40	215.9	88.9	12.70	2.15	s / w
	40s		7.11				3.57	s / w
8 "	10s	219.1	3.76	269.9	101.6	12.70	3.22	s / w
	40s		8.18				6.07	s / w
10 "	10s	273.1	4.19	323.9	127.0	12.70	5.13	w
	40s		9.27				10.07	w
12 "	10s	323.9	4.57	381.0	152.4	12.70	8.16	w
	40s		9.53				14.29	w
14 "	10s	355.6	4.78	412.8	152.4	12.70	10.89	w
	40s		9.53				17.15	w
16 "	10s	406.4	4.78	469.9	152.4	12.70	12.70	w
	40s		9.53				20.41	w
18 "	10s	457.2	4.78	533.4	152.4	12.70	17.24	w
20 "	10s	508.0	5.54	584.2	152.4	12.70	21.77	w
24 "	10s	609.6	6.35	692.2	152.4	12.70	27.22	w

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