Buttweld Fitings

We make the Buttweld Fittings can withstand higher pressure, higher temperature, higher mechanical stress & corrosive atmosphere and find wide applications in Oil & Gas, etc.

Buttweld Fittings

A pipe fitting is defined as a part used in a piping system, for changing direction, branching or for change of pipe diameter, and which is mechanically joined to the system. There are many different types of fittings and they are the same in all sizes and schedules as the pipe.

A piping system using buttweld fittings has many inherent advantages over other forms.

Welding a fitting to the pipe means it is permanently leakproof
The continuous metal structure formed between pipe and fitting adds strength to the system
Smooth inner surface and gradual directional changes reduce pressure losses and turbulence and minimize the action of corrosion and erosion
A welded system utilizes a minimum of space

Why To Buy From Tirupati Steel

Tirupati Steel covers the preparation of buttwelding ends of piping components to be joined into a piping system by welding. It includes requirements for welding bevels, for external and internal shaping of heavy-wall components, and for preparation of internal ends (including dimensions and dimensional tolerances). These weld edge preparation requirements are also incorporated into the ASME standards (e.g., B16.9, B16.5, B16.34).

It provides wide variety of size and textures of Buttweld Fittings to all over the India.

Butt Welding Pipe Fittings

A piping system using butt welding fittings has many inherent advantages over other forms

Welding a fitting to the pipe means that it is permanently leak proof
The continuous metal structure formed between pipe and fitting adds strength to the system
Smooth inner surface and gradual direction changes reduce pressure losses and turbulence and minimize the action of corrosion and erosion
A welded system utilizes a minimum of space

Tirupati Steels Supply Butt Welding Fittings in the following forms

Elbows 45o and 90o – long radius is standard; short radius is also available
Return bends 180o – long radius is standard; short radius is also available
Reducers – concentric and eccentric
Tees – equal and reducing
Caps
Stub ends – Type B, to MSS SP-43

Butt welding fittings can be supplied in either seamless or welded construction and are covered by specification ASTM A403M (or ASTM A815M for Duplex grades) and ASME B16.9.

Pipe Flanges

A flange is a ring of steel (forged, cut from plate, or rolled) designed to connect sections of pipe, or to join pipe to a pressure vessel, valve, pump or other integral flanged assembly.

Flanges are joined to each other by bolting, and are joined to the piping system by welding or threading (or loose when stub ends are used).

The basic types of flanges are:

Slip-on
Blind
Weld neck
Threaded
Socket weld
Lap joint
Orifice

Welded Butt Welding Fittings – ASTM A403M & ASME B16.9

90 Degree Elbow

45 Degree Elbow

Stub end type B

Equal tee

Stub end type B

Product range and theoretical weights (kg)
DN	Schedule 10S					Schedule 40S
DN	90⁰ Elbow	45⁰ Elbow	Equal tee	Stub end type B	Endcap	90⁰ Elbow	45⁰ Elbow	Equal tee	Stub end type B	End cap
15	0.06	0.03	0.09	0.07	0.03	0.08	0.04	0.10	0.08	0.04
20	0.07	0.03	0.13	0.09	0.05	0.08	0.04	0.17	0.11	0.07
25	0.14	0.08	0.28	0.16	0.08	0.15	0.11	0.29	0.17	0.10
32	0.23	0.11	0.49	0.22	0.10	0.26	0.17	0.59	0.25	0.18
40	0.30	0.17	0.68	0.25	0.11	0.40	0.23	0.86	0.31	0.20
50	0.50	0.25	0.85	0.43	0.13	0.70	0.40	1.28	0.61	0.23
65	0.85	0.48	1.41	0.57	0.19	1.40	0.77	2.19	0.80	0.27
80	1.25	0.63	1.77	0.72	0.25	2.20	1.08	3.31	1.13	0.42
100	2.10	1.08	3.46	1.09	0.68	4.47	1.47	5.27	1.87	1.14
125	3.65	1.82	5.44	1.47	1.11	6.80	2.84	9.63	2.79	2.13
150	5.45	2.72	8.03	2.15	1.42	10.89	5.44	10.99	3.57	3.23
200	10.20	5.33	15.65	3.22	2.38	21.54	10.77	20.91	6.07	5.19
250	18.15	9.75	26.76	5.13	4.45	38.56	19.27	35.38	10.07	9.00
300	25.80	13.62	39.46	8.16	7.50	59.42	29.71	62.14	14.29	15.00
350	36.29	18.37	48.53	10.88	8.17	79.38	35.15	79.31	17.14	16.00
400	47.63	23.81	58.97	12.70	10.67	99.79	45.81	99.79	20.41	21.00
450	59.87	29.94	79.65	17.23	13.00	129.73	59.40	129.73	27.21	26.00
500	99.80	49.90	103.42	21.77	17.00	162.38	74.84	162.39	29.94	34.00
600	140.61	70.31	155.58	27.21	26.00	225.89	105.23	225.90	38.55	52.00

Welded Butt Welding Fittings – ASTM A403M & ASME B16.9

Con Reducer

Stub end type B

Stub end type B

Product range and theoretical weights (kg)
DN	Schedule 10S			Schedule 40S
DN	Con reducer	Ecc reducer	Reducing tee	Con reducer	Ecc reducer	Reducing tee
20×15	0.10	0.10	0.11	0.14	0.14	0.15
25×15	0.12	0.12	0.25	0.15	0.15	0.26
25×20	0.13	0.13	0.25	0.16	0.16	0.27
32×20	0.18	0.18	0.44	0.22	0.22	0.52
32×25	0.18	0.18	0.45	0.22	0.22	0.53
40×20	0.18	0.18	0.58	0.24	0.24	0.74
40×25	0.19	0.19	0.60	0.26	0.26	0.76
40×32	0.21	0.24	0.61	0.28	0.28	0.77
50×25	0.28	0.28	0.73	0.40	0.40	1.10
50×32	0.30	0.30	0.74	0.44	0.44	1.13
50×40	0.31	0.31	0.76	0.45	0.45	1.15
65×40	0.44	0.44	1.24	0.76	0.76	1.94
65×50	0.47	0.47	1.25	0.80	0.80	1.98
80×40	0.51	0.51	1.52	0.94	0.94	2.85
80×50	0.55	0.55	1.56	1.00	1.00	2.91
80×65	0.59	0.59	1.59	1.08	1.08	2.98
100×40	0.68	0.68	2.90	1.36	1.36	4.53
100×50	0.78	0.78	2.94	1.57	1.57	4.48
100×65	0.83	0.83	2.97	1.66	1.66	4.54
100×80	0.87	0.87	3.04	1.74	1.74	4.64
125×100	1.49	1.49	5.49	2.98	2.98	8.47
150×80	1.82	1.82	6.86	3.98	3.98	11.94
150×100	1.96	1.96	7.10	4.07	4.07	9.68
150×125	2.00	2.00	7.27	4.07	4.07	9.99
200×100	3.01	3.01	13.46	6.55	6.55	17.98
200×150	3.19	3.19	14.08	6.94	6.94	18.82
250×100	4.73	4.73	22.75	10.52	10.52	30.07
250×150	5.00	5.00	23.55	11.12	11.12	31.13
250×200	5.20	5.20	24.08	11.56	11.56	31.84
300×200	7.67	7.67	34.73	15.98	15.98	54.43
300×250	7.98	7.98	35.52	16.63	16.63	55.79
350×300	15.29	15.29	43.96	30.58	30.58	71.21
400×200	16.70	16.70	49.90	33.40	33.40	84.82
400×250	17.22	17.22	50.80	35.43	35.43	85.73
400×300	18.35	18.35	51.71	36.70	36.70	87.54

Butt Welding Fittings to ASME B16.9
Nominal size		OD	Elbows			Returns				Caps	Reducers Note 1	Stub Ends
			Long		Short	Long		Short				Long	Short	Radius of Fillet	Diam of Lap
			90 deg	45 deg	90 deg	Long		Short				Long	Short	Radius of Fillet	Diam of Lap
DN	NPS	D	A	B	A	O	K	O	K	E	H	F	F	R	G
15	½	21.3	38	16		76	48			25		76	51	3	35
20	¾	26.7	38	19		76	51			25	38	76	51	3	43
25	1	33.4	38	22	25	76	56	51	41	38	51	102	51	3	51
32	11/4	42.2	48	25	32	95	70	64	52	38	51	102	51	5	64
40	11/₂	48.3	57	29	38	114	83	76	62	38	64	102	51	6	73
50	2	60.3	76	35	51	152	106	102	81	38	76	152	64	8	92
65	21/₂	73.0	95	44	64	190	132	127	100	38	89	152	64	8	106
80	3	88.9	114	51	76	229	159	152	121	51	89	152	64	10	127
90	31/₂	101.6	133	57	89	267	184	178	140	64	102	152	76	10	140
100	4	114.3	152	64	102	305	210	203	159	64	102	152	76	11	157
125	5	141.3	190	79	127	381	262	254	197	76	127	203	76	11	185
150	6	168.3	229	95	152	457	313	305	237	89	140	203	89	13	218
200	8	219.1	305	127	203	610	414	406	313	102	152	203	102	13	270
250	10	273.0	381	159	254	762	518	508	391	127	178	254	127	13	324
300	12	323.8	457	190	305	914	619	610	467	152	203	254	152	13	381
350	14	355.6	533	222	356	1067	711	711	533	165	330	305	152	13	413
400	16	406.4	610	254	406	1219	813	813	610	178	356	305	152	13	470
450	18	457	686	286	457	1372	914	914	686	203	381	305	152	13	533
500	20	508	762	318	508	1524	1016	1016	762	229	508	305	152	13	584
550	22	559	838	343	559	1676	1118	1118	838	254	508	305	152	13	641
600	24	610	914	381	610	1829	1219	1219	914	267	508	305	152	13	692
650	26	660	991	405						267	610
700	28	711	1067	438						267	610
750	30	762	1143	470						267	610
800	32	813	1219	502						267	610
850	34	864	1295	533						267	610
900	36	914	1372	565						267	610
950	38	965	1448	600						305	610
1000	40	1016	1524	632						305	610
1050	42	1067	1600	660						305	610
1100	44	1118	1676	695						343	610
1150	46	1168	1753	727						343	711
1200	48	1219	1829	759						343	711

Buttweld Fitings

Buttweld Fittings

Why To Buy From Tirupati Steel

Butt Welding Pipe Fittings

Tirupati Steels Supply Butt Welding Fittings in the following forms

Pipe Flanges

Welded Butt Welding Fittings – ASTM A403M & ASME B16.9

Product range and theoretical weights (kg)

Welded Butt Welding Fittings – ASTM A403M & ASME B16.9

Product range and theoretical weights (kg)

Butt Welding Fittings to ASME B16.9