Butt Weld Fittings

Pipe fittings are a general term for the components that play a role in connecting, controlling, changing direction, diverting, sealing, supporting, etc. in pipeline systems.The fittings used for interconnecting pipes include flanges, unions, pipe clamps, clamps, sleeves, throat clamps, etc.Pipe fittings that change the direction of pipes: elbows, bends.Pipe fittings that change the diameter of pipes: variable diameter (reducing pipe), reducing elbow, branch pipe platform, reinforcing pipe.Add fittings for branching pipelines: tees.Pipe fittings used for pipeline sealing: gaskets, raw tape, hemp thread, flange blind plates, pipe plugs, blind plates, heads, welding plugs.Pipe fittings used for pipeline fixation: snap rings, drag hooks, lifting rings, brackets, brackets, pipe clamps, etc.
Our welded steel pipes can work perfectly together with pipe joint and pipe bends to build complete industrial pipeline systems for oil, gas, water and construction projects.

Specification Of Butt Weld Fittings

Sizes

DN15-DN2000

Materials

ASTM A105, ASTM A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, ASTM A694 F42, F46, F48, F50, F52, F56, F60, F65, F70;

ASTM A182 F304, 304L, F316, 316L, 1Cr18Ni9Ti, 0Cr18Ni9Ti, 321, 18-8;

ASTM A182F1, F5a, F9, F11, F12, F22, F91, A182F12, A182F11, 16MnR, Cr5Mo, 12Cr1MoV, 15CrMo, 12Cr2Mo1, A335P22, ST45.8;

Standard

ASME B16.9; GB12459; DIN2616; GOST17378-2001; JIS B2311

Application

Water treatment; Power plant accessories; Chemical engineering; Shipbuilding; Nuclear energy; Garbage disposal; natural gas; petroleum

Technical Table

ASME,JIS,DIN,GB,SH,HG,SY
Nominal Pipe Size		Center to End			Center to Center		Back to face
		45°EIbows	90°EIbows		180°EIbows
		B	A		O		U
DN	NPS	Long Radius	Long Radius	Short Radius	Long Radius	Short Radius	Long Radius	Short Radius
15	1/2	16	38	–	76		48	–
20	3/4	16	38	25	76	–	51	41
25	1	16	38		76	51	56
32	114	20	48	32	95	64	70	52
40	112	24	57	38	114	76	83	62
50	2	32	76	51	152	102	106	81
65	212	40	95	64	191	127	132	100
80	3	47	114	76	229	152	159	121
90	312	55	133	89	167	178	184	140
100	4	63	152	102	305	203	210	159
125	5	79	79	127	381	254	262	197
150	6	95	229	152	457	305	313	237
200	8	126	305	203	610	406	414	313
250	10	158	381	254	762	508	518	391
300	12	189	457	305	914	610	619	467
350	14	221	533	356	1067	711	711	533
400	16	253	610	406	1219	813	813	610
450	18	284	686	457	1375	914	914	686
500	20	316	762	508	1524	1016	1016	762
550	22	347	838	559	1676	1118	1118	838
600	24	379	914	610	1829	1219	1219	914
650	26	410	991	660
700	28	442	1067	711	45°Long radius elbow 90°Long radius elbow 90°Long radius elbow Long radius reducing blbow Short radius sharp return
750	30	473	1143	762
800	32	505	1219	813
850	34	537	1295	864
900	36	567	372	914
950	38	600	1448	965
1000	40	40	1524	1016
1050	42	42	1600	1067
1100	44	44	1676	1118
1150	46	46	1753	1168
1200	48	48	1829	1219
1300	52	52	1961	1321
1400	56	56	2134	1420
1500	60	60	2286	1524
1600	64	64	2438	1620
1700	68	68	2591	1727
1800	72	72	2743	1829
1900	76	76	2896	1930
2000	80	80	3048	2032

FAQ

Q: What is the difference between 45° elbow, 90° elbow and 180° elbow?

A: They are classified according to the turning angle for pipeline direction change. 45° elbows are used for gentle direction transition, 90° elbows for right-angle turn, while 180° elbows allow the pipeline to reverse flow direction. You can find full dimension data in our elbow dimension table.

Q: What materials are available for pipe elbows?

A: We supply carbon steel and stainless steel pipe elbows. Materials can be customized based on your working medium, pressure and temperature requirements for oil, gas, water and industrial piping systems.

Q: What standard do your butt weld pipe elbows comply with?

A: Our butt weld elbows follow international piping standards. The dimensions, wall thickness and tolerances are strictly controlled to match your welded steel pipes and butt weld fittings.

Q: Can I customize non-standard elbow sizes?

A: Yes. Custom sizes, wall thickness and special surface treatment are available. Please send your nominal size and technical requirements for quotation.