Forged Fittings

What are Forged Fittings?

Forged fittings are pipe connectors manufactured through the hot forging process, where metal is shaped under high pressure to achieve exceptional strength, uniformity, and resistance to high-pressure applications.

Available in various types such as elbows, tees, couplings, and unions, forged fittings are typically produced from carbon steel, stainless steel, and alloy steel, and conform to international pressure classes like Class 2000, 3000, and 6000.

Key Features

Leak-Proof
Jointing

Durable
Construction

Easy Installation
& Removal

Wide
Compatibility

Corrosion
Resistant

Types of Forged Fittings

Socket Weld Fittings

Threaded Pipe Fittings

Specifications

Specification Category	Parameter / Feature	Details / Options
Size Range	Nominal Pipe Size (NPS)	½” to 4” (DN15 – DN100)
Size Range	Pressure Ratings	Class 2000, 3000, 6000, 9000
PN Ratings	PN20, PN50, PN100
Fitting Types	Socket Weld Fittings	Elbow (45°, 90°), Tee, Cross, Coupling, Cap, Union
Fitting Types	Threaded Pipe Fittings	Elbow (45°, 90°), Tee, Cross, Coupling, Union, Plug, Cap, Bushing
Material Options	Stainless Steel	SS 304, SS 304L, SS 316, SS 316L, SS 321
	Carbon Steel	ASTM A105, ASTM A350 LF2
	Alloy Steel	ASTM A182 F1, F5, F9, F11, F22, F91
	Duplex & Super Duplex	Duplex 2205, Super Duplex 2507
	Other Materials	Monel 400/K500, Inconel 600/625/825, Nickel 200/201, Titanium (Grade 2, Grade 5)
Standards & Certifications	ASME / ANSI	ASME B16.11 (Socket Weld & Threaded Forged Fittings)
	ASTM	ASTM A105, ASTM A182, ASTM A350
	European Standards	DIN, EN 10241
	Certifications	ISO 9001, PED 2014/68/EU, NACE MR0175, IBR Approved
Design Features	Wall Thickness	As per ASME B16.11, Schedule 40/80, XXS
	End Connections	Socket Weld Ends, Threaded Ends (NPT, BSP, BSPT)
	Tolerance	As per ASME/ANSI standards
Coating & Surface Finish	Anti-Corrosion Coating	Rust Preventive Oil, Black Oxide
	Optional Coatings	Hot-Dip Galvanized, Epoxy, PTFE
	Surface Finish	Machined, Polished, Passivated
Testing & Inspection	Pressure Testing	Hydrostatic, Pneumatic
	Non-Destructive Testing	Ultrasonic (UT), Magnetic Particle (MPI), Dye Penetrant (DPT)
	Destructive Testing	Tensile, Hardness, Impact

Dimensions in mm of Forged Screwed Fittings to ANSI B-16. Threaded to ASA B 2.1

Nom Bore	Pipe OD	3000 LBS						Common Factors						6000 LBS
Nom Bore	Pipe OD	A	B	C	G	H	K	D	E	F	I	J	L	A	B	C	G	H	K
1/8″	10.3	21	22	17	32	16	19	11	10	40	–	6	–	25	25	19	32	22	–
1/4″	13.7	25	25	19	35	19	25	16	11	43	3	6	32	29	33	22	35	25	27
3/8″	17.2	29	33	22	38	22	25	17.5	13	48	4	8	38	33	38	25	38	32	27
1/2″	21.3	33	38	25	48	29	32	22	15	51	5	8	46	38	46	29	48	38	33
3/4″	26.7	38	46	29	51	35	37	27	16	57	6	10	51	44	56	33	51	44	38
1″	33.4	44	56	33	60	44	41	35	19	64	6	10	60	51	62	35	60	57	43
1 1/4″	42.2	51	62	35	67	57	44	44.5	21	70	7	14	72	60	75	43	67	64	46
1 1/2″	48.3	60	75	43	79	64	44	51	21	79	8	16	80	64	84	44	79	76	48
2″	60.3	64	84	45	86	76	48	63.5	22	88	9	17	94	83	102	52	86	92	51
2 1/2″	73.02	83	102	52	92	92	60	76	27	118	10	21	122	95	121	64	92	108	64
3″	89.0	95	121	64	108	108	65	89	29	121	10	25	140	106	146	79	108	127	68
4″	114.5	114	152	79	121	140	68	117.5	32	150	13	25	180	114	152	79	121	159	75

Dimensions of Socket Weld Fitting to ANSI B-16.11

Nom Bore	Pipe O.D.	3000 LBS									Common Factors				6000 LBS
Nom Bore	Pipe O.D.	A	B	K	J	L	M	N	P	Q	C min	D min	O min	O max	A	B	M	K	N
1/8″	10.3	22	18.5	26	16	40	17.3	32	17.5	10	10.7	10	5	8	22	22	20	25	46
1/4″	13.7	22	22	26	18	43	21.2	32	17.5	10	14.1	10	5	8	27	25	24	25	51
3/8″	17.2	25	25	26	19	48	25.4	36	19	10	17.6	10	3	9	27	28	28	26	60
1/2″	21.3	27	32	30	21	51	31	43	22	10	21.7	10	6	13	31	34	34	31	72
3/4″	26.7	34	38	32	24	57	37	50	25	13	27	13	6	13	37	42	41	35	80
1″	33.4	37	46	40	25	64	45.2	60	27	13	33.8	13	9	17	42	50	50	42	94
1 1/4″	42.2	42	56	40	29	70	55	70	30	13	42.6	13	9	17	47	59	58	41	100
1 1/2″	48.3	48	62	40	30	79	61.4	78	32	13	48.7	13	9	17	53	67	55	43	122
2″	60.3	56	75	52	37	89	75	95	38	13	61.2	16	15	23	59	84	83	55	–
2 1/2″	73.02	60	92	52	48	114	91.3	125	38	16	73.8	16	14	24	102	–	–	56	–
3″	89.0	76	110.8	52	51	127	108.8	140	44	16	89.6	16	14	24	121	–	–	58	–
4″	114.5	88	137.5	58	–	150	136.9	–	48	19	115.5	19	14	24	152	–	–	64	–

Mechanical Properties of Forged Fittings

Property	Value	Unit / Standard
Tensile Strength	485 – 850	MPa (varies with material: CS, SS 304/316, Alloy Steel)
Yield Strength	250 – 600	MPa
Hardness	130 – 220	HB (Brinell)
Elongation	≥ 20 – 35	%
Density	7.8 – 8.0	g/cm³
Impact Toughness	≥ 27 – 70	J (Charpy, grade-dependent)
Modulus of Elasticity (E)	~200	GPa
Fatigue Strength	220 – 450	MPa
Corrosion Resistance	Good to Excellent (higher in SS/Alloy grades)	–
Thermal Conductivity	15 – 50	W/m·K
Coefficient of Thermal Expansion	11 – 17 ×10⁻⁶	/°C
Yield Ratio (YS/UTS)	0.45 – 0.65	–
Poisson’s Ratio	0.27 – 0.30	–
Brinell Hardness Range	130 – 220	HB
Surface Finish	Machined, Black oxide, Pickled & Passivated (for SS)	–
Operating Temperature Range	-46 to 600	°C (material-dependent)
Pressure Rating	Class 2000, 3000, 6000	ASME B16.11 Standards

Chemical Composition of Forged Fittings

Element	SS 304	SS 304L	SS 316	SS 316L
Chromium (Cr)	18.0 – 20.0	18.0 – 20.0	16.0 – 18.0	16.0 – 18.0
Nickel (Ni)	8.0 – 10.5	8.0 – 12.0	10.0 – 14.0	10.0 – 14.0
Carbon (C)	≤ 0.08	≤ 0.03	≤ 0.08	≤ 0.03
Manganese (Mn)	≤ 2.00	≤ 2.00	≤ 2.00	≤ 2.00
Silicon (Si)	≤ 1.00	≤ 1.00	≤ 1.00	≤ 1.00
Phosphorus (P)	≤ 0.045	≤ 0.045	≤ 0.045	≤ 0.045
Sulfur (S)	≤ 0.030	≤ 0.030	≤ 0.030	≤ 0.030
Iron (Fe)	Balance	Balance	Balance	Balance
Molybdenum (Mo)	—	—	2.0 – 3.0	2.0 – 3.0

Do you have questions?

What is the advantage of forged fittings over cast fittings?

Can I use forged fittings for underground or high-vibration applications?

What’s the difference between socket weld and threaded forged fittings?

Are third-party inspections and certifications provided?