Stainless Steel 347/347H Forged Fittings Manufacturer & Supplier

Midland Alloys is a trusted SS 347 forged fittings manufacturer in India, known for producing high-quality fittings using advanced machinery. Stainless Steel 347/347H forged pipe fittings are made from a stabilized alloy that offers excellent resistance to intergranular corrosion. The 347H variant, with higher carbon content, performs well at high temperatures ranging from 800°F to 1500°F. Our 347H forged fittings meet ASTM A403 / ASME SA403 standards. We offer a wide range of types and forms, including socket weld SS 347 forged fittings and threaded SS 347H forged fittings, available in forms like elbows, tees, couplings, pipe caps, unions, bushings, plugs, pipe nipples, and street elbows. They are available in 1/8″–4″ SS 347 socket weld fittings type to meet diverse industrial needs.

Benefits of ASTM A182 F347 Forged Fittings

Stainless steel 347 forged fittings are made from a columbium and tantalum-stabilized alloy. The SS 347H pipe fittings forged variant resists embrittlement and stress corrosion cracking.

Great strength under constant high heat
Reliable creep resistance under pressure
Maintains shape in fluctuating temperatures
Works well in oxidizing environments
Long service life with fewer replacements
SS UNS S34700 forged fittings are easy to machine and install

Uses of ASME SA182 347H Stainless Forged Fittings

DIN 1.4550 / 1.4961 forged fittings are widely used across industries. In oil and gas refineries, they handle corrosive fluids and low temperatures with ease. Stainless steel 347H forged fittings like elbows and tees are preferred in boilers, pressure vessels, and heat exchangers due to their strength and weldability. They are also utilized in chemical plants for transferring high-temperature fluids. Stainless Steel UNS34700 Forged Coupling performs well in wet conditions and resists pitting corrosion which make them ideal for critical connections.

SS 347H vs SS 316 Forged Fittings

Stainless steel 347H forged fittings are better for high-heat jobs than SS 316L forged fittings. 347H handles longer exposure to elevated temperatures without losing strength or cracking. 316L is more suited for general corrosion resistance but lacks the high-temperature stability of 347H.

Specification of Stainless Steel 347/347H Forged Fittings

Types of Stainless Steel 347/347H Forged Fittings

Manufacturing Types

Threaded Forged Fittings

Designed with internal or external threads, these fittings allow quick assembly and disassembly without welding.
Socket Weld Forged Fittings

These fittings are joined by inserting the pipe into a recessed area of the fitting and welding around it, ensuring strong, leak-proof joints.
Screwed Fittings

Similar to threaded types, screwed fittings are connected using screw threads, making installation simple and cost-effective.
BSPT

Bushings help reduce the bore size in a fitting or valve connection by joining pipes of varying diameters.
NPT

End caps are used to seal a pipeline's end, shielding it from impurities and guaranteeing closed systems' safety.

Forms

Forged Elbow

Elbows, which come in 45° and 90° varieties shift the direction of flow with little pressure loss.
Forged Bushing

Bushings help reduce the bore size in a fitting or valve connection by joining pipes of varying diameters.
Forged Tee

Used to split or combine flow across three directions essential for branching pipeline.
Forged Coupling

Offer a safe connection between two pipes; threaded and socket-welded options are available.
Forged Plug

Close open pipe ends which are frequently used for isolation or testing.
Forged Cross

With four openings, cross fittings help connect four pipes used when fluid distribution needs to occur in multiple directions.

Contact Midland Alloys Inc. for Your SS 347/347H Forged Fittings Needs

Contact us today to discuss how Stainless Steel 347/347H Forged Fittings can benefit your application. Whether you need guidance in selecting the right pipes or have specific requirements, our team of experts is here to help you find the optimal solution.

Technical Details & Delivery Condition

Chemical Composition of Stainless Steel 347/347H Forged fitting

Grade	C	Mn	Si	P	S	Cr	Cb	Ni	Fe
SS 347	0.08 max	2.0 max	1.0 max	0.045 max	0.030 max	17.00 – 20.00	10xC – 1.10	9.00 – 13.00	62.74 min
SS 347H	0.04 – 0.10	2.0 max	1.0 max	0.045 max	0.030 max	17.00 – 19.00	8xC – 1.10	9.00 – 13.00	63.72 min

Mechanical Properties of Stainless Steel 347/347H Forged fitting

Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
8.0 g/cm3	1400 °C (2550 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	35 %

Stainless Steel 347/347H Forged Fittings Equivalent Grade

STANDARD	WERKSTOFF NR.	UNS	JIS	GOST	EN
SS 347	1.4550	S34700	SUS 347	08Ch18N12B	X6CrNiNb18-10
SS 347H	1.4961	S34709	SUS 347H	–	X6CrNiNb18-12

Stainless Steel Forged Fittings Grades We Offer

Stainless Steel 304/304L Forged Fittings

Stainless Steel 310/310S Forged Fittings

Stainless Steel 316/316L Forged Fittings

Stainless Steel 316Ti Forged Fittings

Stainless Steel 317/317L Forged Fittings

Stainless Steel 321/321H Forged Fittings

Stainless Steel 347/347H Forged Fittings

Stainless Steel 904L Forged Fittings

Stainless Steel 253MA Forged Fittings

SMO 254 Forged Fittings

Socket Weld Fittings Dimensions

Threaded Fittings Dimensions

Tolerance Chart

Socket Weld Fittings Dimensions

Threaded Fittings Dimensions

Tolerance Chart

Manufacturing Standards of Stainless Steel 347/347H Forged Fittings

Raw Material

Cutting

Sizing

Heat Treatment

Pickling

Beveling

Polishing

Sand Blasting

Pickling / Passivating

Inspection

Analytic

Marking

Packing & Shipping

Applications of SS 347/347H Forged Fittings

Offshore Industry

Nuclear Industries

Refineries

Ship Building

Aerospace

Pharmaceutical

Why Choose Midland Alloys Inc. for ASME SA182 347H Stainless Forged Fittings

Midland Alloys Inc. is a reliable SS 347 forged fittings manufacturer India, known for high-quality products and global customer satisfaction. We are ISO 9001:2015 and PED 2014/68/EU certified, and all SS 347/347H forged pipe fittings come with EN 10204 3.1/3.2 mill test certificates. We support TPI from agencies like TÜV, BV, SGS, and DNV. We work with EPCs, marine operators, and chemical plants. Our team ensures timely delivery, export documentation accuracy, and responsive support. Clients in the Middle East, Europe, and Southeast Asia trust us for repeat orders due to our strong quality control. We run strict in-house and third-party tests like hydrostatic, ultrasonic, radiographic, and PMI, along with mechanical tests such as tensile, hardness, and bend testing. Our SS 347H forged fittings price per kg is based on quantity, type, and size.

FAQs – SS 347/347H Forged Fittings

What is the difference between SS 347 and 347H fittings?

SS 347H has higher carbon than SS 347. This gives it better strength at high temperatures and pressure.

Are Stainless Steel 347/347H forged fittings available in different sizes?

Yes. Available from ¼” NB to 4″ NB. Custom sizes and types are also provided as per your needs.

Products Categories

ISO Certificate

Nominal Size		Socket Bore Dia	Bore Dia of Fittings			Socket Wall Thickness						Body Wall			Depth of Socket	Center to Bottom of Socket
D N	NPS	B	D			C						Gmin			J min	A
			3000	6000	9000	3000		6000		9000		3000	6000	9000		90° Elbow Tee Cross			45° Elbow
			3000	6000	9000	ave	min	ave	min	ave	min	3000	6000	9000		3000	6000	9000	3000	6000	9000
6	1/8	10.9	6.1	3.2		3.18	3.18	3.96	3.43			2.41	3.15		9.5	11.0	11.0		8	8
8	1/4	14.3	8.5	5.6		3.78	3.30	4.60	4.01			3.02	3.68		9.5	11.0	13.5		8	8
10	3/8	17.7	11.8	8.4		4.01	3.50	5.03	4.37			3.20	4.01		9.5	13.5	15.5		8.0	11.0
15	1/2	21.9	15.0	11	5.6	4.67	4.09	5.97	5.18	9.53	8.18	3.73	4.78	7.47	9.5	15.5	19.0	25.5	11	12.5	15.5
20	3/4	27.3	20.2	14.8	10.3	4.90	4.27	6.96	6.04	9.78	8.56	3.91	5.56	7.82	12.5	19.0	22.5	28.5	13	14	19
25	1	34	25.9	19.9	14.4	5.69	4.98	7.92	6.93	11.38	9.96	4.55	6.35	9.09	12.5	22.5	27.0	32.0	14.0	17.5	20.5
32	1-1/4	42.8	34.3	28.7	22.0	6.07	5.28	7.92	6.93	12.14	10.62	4.85	6.35	9.70	12.5	27.0	32.0	35.0	17.5	20.5	22.5
40	1-1/2	48.9	40.1	33.2	27.2	6.35	5.54	8.92	7.8	12.70	11.12	5.08	7.14	10.15	12.5	32.0	38.0	38.0	20.5	25.5	25.5
50	2	61.2	51.7	42.1	37.4	6.93	6.04	10.92	9.5	13.84	12.12	5.54	8.74	11.07	16.0	38.0	41.0	54.0	25.5	28.5	28.5
65	2-1/2	73.9	61.2			8.76	7.62					7.01			16.0	41.0			28.5
80	3	89.9	76.4			9.52	8.30					7.62			16.0	57.0			32.0
100	4	115.5	100.7			10.69	9.35					8.56			19.0	66.5			41.0

Nominal Size		Center-to-End						Outside Diameter of Band			Wall Thickness			Length of Thread
DN	NPS	A						H			G min			min	mim
		90° Elbows, Tees, Crosses			45° Elbows			H			G min
		2000	3000	6000	2000	3000	6000	2000	3000	6000	2000	3000	6000
6 8 10	1/8 1/4 3/8	21 21 25	21 25 28	25 28 33	17 17 19	17 19 22	19 22 25	22 22 25	22 25 33	25 33 38	3.18 3.18 3.18	3.18 3.30 3.51	6.35 6.60 6.98	6.4 8.1 9.1	6.7 10.2 10.4
15 20 25	1/2 3/4 1	28 33 38	33 38 44	38 44 51	22 25 28	25 28 33	28 33 35	33 38 46	38 46 56	46 56 62	3.18 3.18 3.68	4.09 4.32 4.98	8.15 8.53 9.93	10.9 12.7 14.7	13.6 13.9 17.3
32 40 50	1-1/4 1-1/2 2	44 51 60	51 60 64	60 64 83	33 35 43	35 43 44	43 44 52	56 62 75	62 75 84	84 102	3.89 4.01 4.27	5.28 5.56 7.14	10.59 11.07 12.09	17.0 17.8 19.0	18.0 18.4 19.2
65 80 100	2-1/2 3 4	76 86 106	83 95 114	95 106 114	52 64 79	52 64 79	64 79 79	92 109 146	102 121 152	121 146 152	5.61 5.99 6.55	7.65 8.84 11.18	15.29 16.64 18.67	23.6 25.9 27.7	28.9 30.5 33.0

Minimal Diam.		Outer Dia. For Bevel End	Inner Dia. For End	Elbow		Tee		Reducer	Cap	180° Elbow
DN	NPS			A	B	C	M	H	E	O	K	Roughness
500-600	20-24	+6.4/-4.8	4.8	3.2	3.2	3.2	3.2	4.8	9.6	–	–	–
650-750	26-30
				4.8	4.8	4.8	4.8
800-1200	32-48
1250-1500	50-60	+9.6/-6.4	6.4	9.6	9.6	9.6	9.6	9.6	–
1550-1750	62-70	+12.7/-9.6	9.6	12.7	12.7	–
1800-2000	72-80	+16/-12	12	16	16
15-65	1/2-2 1/2	+1.6/-0.8	0.8	1.6	1.6	1.6	1.6	1.6	3.2	6.4	6.4	0.8
80-100	3-4	1.6	1.6						6.4
125-200	5-8	+2.4/-1.6
250-450	10-18	+4/-3.2	3.2	2.4	2.4	2.4	2.4	2.4		9.6