Inconel 625 Pipe Fittings Manufacturer in India

Inconel 625 Pipe Fittings are the preferred choice for offshore oil & gas contractors, marine engineers, and chemical processing EPC companies for piping systems exposed to seawater, high chlorides process streams, and pitting aggressive media. Amardeep Steel Centre is ISO 9001:2015 certified nconel 625 pipe fittings manufacturer and Inconel 625 fittings supplier with a ready supply of all standard sizes and schedules. Alloy 625 is available in our stock with all EN 10204 3.1 MTCs, PMI verified heats and third-party inspection available upon request. For welded assemblies used in seawater, aggressive acid or high pressure gas, it is logical to consider using alloy 625 fittings as they do not need post weld heat treatment.

ASTM B366 UNS N06625 Pipe Fittings Specifications

Parameter	Details
Specification	ASTM B366 / ASME SB366
UNS No.	N06625
Werkstoff No.	2.4856
Size Range (BW)	1/2" NB to 48" NB
Schedules	SCH 10 to XXS
Dimension Standards	ASME B16.9, MSS SP-43, ASME B16.11
End Finish	BE, PE, TE
Form	Seamless & Welded
Test Reports	EN 10204 3.1, NACE MR0175, DNV/ABS/Lloyd's

Types of Inconel 625 Pipe Fittings

Fitting Type	Variants	Standard
Inconel 625 Elbow	45° / 90° LR & SR, 180° return bend	ASME B16.9
Inconel 625 Tee	Equal and reducing tees	ASME B16.9
Inconel 625 Reducer	Concentric / eccentric	ASME B16.9
Inconel 625 Cap	Pipe end closures	ASME B16.9
Stub End (Lap Joint)	Short and long pattern stub ends	MSS SP-43
Socket Weld Fittings	Elbows, tees, unions, couplings	ASME B16.11
Threaded Fittings	NPT/BSP elbows, tees, nipples	ASME B16.11

Inconel 625 Pipe Fittings — Get Competitive Pricing

Email your BOM to info@amardeepsteel.com for a same-day quotation

Inconel 625 Chemical Composition

Ni (min)	Cr	Mo	Nb	Fe (max)	Al (max)	C (max)
58% min	20–23%	8–10%	3.15–4.15%	5.0%	0.40%	0.10%

Inconel 625 Mechanical Properties

UTS (MPa)	0.2% YS (MPa)	Elongation (%)	Hardness (Rb max)
827 min	414 min	30 min	100

Equivalent Grades of Inconel 625

UNS	W.Nr.	BS	ISO	Common Name
N06625	2.4856	NA 21	NW 6625	Alloy 625 / Chronin 625

Inconel 625 Pipe Fittings Schedule Chart- Inconel Alloy Stub Ends

NPS (Inches)	OD	Sch 80S Thickness	Sch 80S ID	Sch 40S Thickness	Sch 40S ID	Sch 5S Thickness	Sch 5S ID	Sch 10S Thickness	Sch 10S ID
2	60.45	5.54	49.73	3.91	52.63	1.65	57.15	2.77	54.91
3	88.90	7.62	73.66	5.49	77.92	2.11	84.68	3.05	114.30
2½	73.15	7.01	59.13	5.16	62.83	2.11	68.93	3.05	67.05
14	355.60	12.70	330.20	9.53	336.54	3.96	347.68	4.57	533.40
10	273.05	12.70	247.65	9.27	254.51	3.40	266.65	3.76	381.00
3½	101.60	8.08	85.14	5.74	90.12	2.11	97.38	3.05	133.35
30	762.00	-	-	-	-	6.35	749.30	7.92	746.16
1¼	42.16	4.85	32.46	3.56	35.04	1.65	38.86	2.77	36.62
5	141.22	9.53	122.16	6.55	128.12	2.77	135.68	3.05	190.50
6	168.15	10.97	146.21	7.11	153.93	2.77	162.61	3.40	228.60
12	323.85	12.70	298.45	9.53	304.79	3.96	315.93	4.19	457.20
24	609.60	12.70	584.20	9.53	590.54	5.54	598.52	6.35	914.40
1½	48.26	5.08	38.10	3.68	40.90	1.65	44.96	2.77	42.72
16	406.40	12.70	381.00	9.53	387.34	4.19	398.02	4.78	609.60
18	457.20	12.70	431.80	9.53	438.12	4.19	448.82	4.78	685.80
8	218.95	12.70	193.55	8.18	202.59	2.77	213.41	3.40	304.80
4	114.30	8.56	97.18	6.02	102.26	2.11	110.08	3.05	152.40
20	508.00	12.70	482.60	9.53	488.94	4.78	498.44	5.54	762.00
¾	26.67	3.91	18.85	2.87	20.93	1.65	23.37	2.11	22.45
½	21.34	3.73	13.88	2.77	15.80	1.65	18.04	2.11	17.12
1	33.53	4.55	24.43	3.38	26.77	1.65	30.23	2.77	27.99
22	558.80	12.70	533.40	9.53	539.74	4.78	549.24	5.54	838.20

Inconel 625 Pipe Fittings Size Chart (Inconel Material Nipple)

NPS	C	M	OD1	OD2
1×1×1	38.10	38.10	33.53	33.53
¾×¾×¾	28.40	28.40	26.67	26.67
½×½×½	25.40	25.40	21.34	21.34
1×1×¾	38.10	38.10	33.53	26.67
1¼×1¼×1	47.76	47.76	42.16	33.53
2×2×½	63.50	60.45	60.45	48.26
2×2×1	63.50	50.80	60.45	33.53
2×2×2	63.50	63.50	60.45	60.45
2×2×1¼	63.50	57.15	60.45	42.16
1¼×1¼×¼	47.76	47.76	42.16	42.16
2×2×¾	63.50	44.45	60.45	26.67
1×1×½	38.10	38.10	33.53	21.34
2×2×2½	72.20	76.20	73.15	73.15

Inconel 625 Pipe Fittings Weight Chart- Inconel Metal Unequal Tee

NPS	90°SR Elbow (80S)	90°SR Elbow (10S)	90°LR Elbow (10S)	90°LR Elbow (5S)	90°LR Elbow (40S)	90°LR Elbow (80S)	45°LR Elbow (80S)	45°LR Elbow (5S)	45°LR Elbow (40S)	45°LR Elbow (40S)	45°LR Elbow (10S)	45°LR Elbow (5S)
½	-	-	0.060	-	-	0.110	0.090	0.049	0.075	0.038	0.030	0.024
8	21.55	6.680	10.00	4.710	13.40	32.00	15.80	7.060	20.10	10.10	5.010	3.530
1½	0.340	0.189	0.280	0.114	0.245	0.500	0.310	0.170	0.350	0.200	0.180	0.085
1¼	0.280	0.152	0.240	0.101	0.204	0.400	0.230	0.125	0.260	0.170	0.140	0.063
2	0.680	0.318	0.460	0.191	0.434	1.000	0.540	0.286	0.660	0.400	0.310	0.143
3	1.900	0.761	1.200	0.540	1.360	3.000	1.600	0.810	2.150	1.100	0.650	0.405
1	0.180	0.094	0.140	0.077	0.118	0.230	0.140	0.078	0.160	0.120	0.100	0.039
2½	1.300	0.541	0.800	0.383	0.909	1.800	0.960	0.576	1.300	0.700	0.450	0.288
4	3.800	1.310	2.000	0.928	2.560	6.100	2.800	1.390	4.000	1.950	1.050	0.696
10	31.75	10.40	15.50	8.830	23.60	48.00	23.90	13.20	35.40	17.70	7.770	6.620
5	6.300	2.280	3.420	1.890	4.320	10.00	4.800	2.830	6.480	3.240	1.710	1.420
12	47.17	16.70	25.90	14.80	37.50	72.00	38.00	22.30	56.20	28.10	12.50	11.10
¾	-	-	0.060	-	-	0.110	0.090	0.062	0.075	0.037	0.030	0.031
3½	2.700	1.020	1.530	0.719	1.880	3.800	2.000	1.080	2.820	1.410	0.760	0.540
6	10.40	3.240	5.250	2.680	6.630	15.80	7.900	4.030	9.940	4.970	2.430	2.010

Dimensions of Inconel Pipe Fitting

NPS	Caps Overall Length E	Elbows & Tees Centre End A, B, C, M	Reducers Overall Length H	180° Return Bends Centre-Centre O
3 – 3½	0.012	0.006	0.006	0.025
½ – 2½	0.012	0.006	0.006	0.025
26 – 30	0.038	0.012	0.019	-
5 – 8	0.025	0.006	0.006	0.025
4	0.012	0.006	0.006	0.025
20 – 24	0.025	0.009	0.009	0.038
10 – 18	0.025	0.009	0.009	0.038
32 – 48	-	0.019	0.019	-

Inconel 625 Pipe Fittings Pressure Rating (Alloy Concentric Reducer)

OD (inch)	16700	16700	16700	15500	14400
2.0375	1371	1371	1371	1272	1182
2.0375	1985	1985	1985	1843	1712
2.0375	3283	3283	3283	3047	2831
3.0500	1301	1301	1301	1208	1122
3.0500	1844	1844	1844	1712	1590
3.0500	2787	2787	2787	2587	2403
4.0500	1102	1102	1102	1023	950
4.0500	1596	1596	1596	1482	1377
4.0500	2611	2611	2611	2424	2552
5.0563	965	965	965	896	832
5.0563	1428	1428	1428	1325	1231
5.0563	2474	2474	2474	2296	2133
6.0625	877	877	877	814	756
6.0625	1379	1379	1379	1280	1189
6.0625	2382	2382	2382	2211	2054
8.0625	771	771	771	716	665
8.0625	1218	1218	1218	1131	1050
8.0625	2298	2298	2298	2133	1982
10.0750	699	699	699	649	603
10.0750	1159	1159	1159	1075	999
10.0750	2289	2289	2289	2124	1974

Inconel 625 Pipe Fittings Metal Coupling Thickness Chart

NPS (inch)	Pipe Schedule	W.T (Inches)
6	40	0.0280
6	80	0.0432
6	160	0.0719
4	40	0.0237
4	80	0.0337
4	160	0.0531
2	40	0.0154
2	80	0.0218
2	160	0.0344
10	40	0.0365
10	80	0.0594
10	160	1.0125
5	40	0.0258
5	80	0.0375
5	160	0.0625
3	40	0.0216
3	80	0.0300
3	160	0.0438
8	40	0.0322
8	80	0.0500
8	160	0.0906

Inconel 625 Pipe Fittings - Inconel Alloy Stub Ends Dimensions

NPS (Inches)	G Short Pattern	G Long Pattern	Length F	Radius R
½	35	51	76	3
¾	43	51	76	3
1	51	51	102	3
1¼	64	51	102	5
1½	74	51	102	6
2	92	64	152	8
2½	105	64	152	8
3	127	64	152	10
3½	140	76	152	10
4	157	76	152	11
5	186	76	203	11
6	216	89	203	13
8	270	102	203	13
10	324	127	254	13
12	381	152	254	13
14	413	152	305	13
16	470	152	305	13
18	533	152	305	13
20	584	152	305	13
22	641	152	305	13
24	692	152	305	13

Inconel 625 Pipe Fittings Cap Dimensions

NPS	SCH 160	STD	XS
1	0.18	0.09	0.14
1¼	0.23	0.14	0.18
1½	0.27	0.18	0.23
2	0.57	0.27	0.34
2½	0.79	0.41	0.45
3	1.32	0.68	0.79
3½	-	0.91	1.13
4	2.68	1.13	1.36
5	4.54	2.04	2.49
6	6.8	2.95	4.08
8	14.06	5.44	7.26
10	25.85	9.07	11.34
12	43.09	13.61	16.33
14	-	16.33	20.41
16	-	18.14	24.49
18	-	24.49	32.66
20	-	34.02	39.01

Nickel Alloy 625 Buttweld Fittings Sizes

Pipe Fitting	Size Range (Seamless)	Size Range (Welded)
Elbows (45°, 90° & 180°)	1/8" NB to 24" NB	Up to 42" NB
Tees	1/8" NB to 24" NB	Up to 42" NB
Reducers	1/8" NB to 24" NB	Up to 42" NB
End Caps	1/8" NB to 24" NB	Up to 42" NB
Cross	1/8" NB to 8" NB	—
Swage Nipple	2-1/16" to 30"	—

As a trusted Inconel 625 Pipe Fittings Supplier in India, we conduct testing to ensure each product meets international quality.

Applications of Inconel 625 Pipe Fittings

Marine & offshore: subsea umbilicals, offshore platform piping, riser connections — Inconel 625 buttweld fittings for seawater resistance
Oil & gas production: Christmas tree bodies, wellhead connectors, high-pressure sour service fittings per NACE MR0175
Chemical processing: hydrofluoric acid alkylation units, phosphoric acid plants, chloride-bearing streams
Aerospace: aircraft engine thrust reversers, combustion liner fittings, environmental control ducting
Nuclear: reactor water cleanup systems, steam generator channel head components

Frequently Asked Questions

Q: Why is Inconel 625 preferred for marine pipe fittings?

A: Inconel 625 has outstanding resistance to seawater pitting and crevice corrosion due to its 8–10% molybdenum and niobium content, making it ideal for offshore and marine pipeline fittings.

Q: What is the PREN value of Inconel 625 Pipe Fittings?

A: Inconel 625 has a PREN (Pitting Resistance Equivalent Number) of approximately 50+, far exceeding standard duplex and super duplex steels, ensuring exceptional chloride pitting resistance.

Q: Are Inconel 625 Pipe Fittings weldable?

A: Yes. Inconel 625 is readily weldable by GTAW, GMAW, and SMAW processes without post-weld heat treatment, and its buttweld fittings are designed for direct in-line welding.

Q: What standard governs Inconel 625 Pipe Fittings dimensions?

A: Inconel 625 Pipe Fittings are dimensioned per ASME B16.9 (buttweld), ASME B16.11 (forged), and MSS SP-43, and are manufactured per ASTM B366 UNS N06625.