Stainless Steel 310/310S Forged Fittings Manufacturer & Supplier

Midland Alloys Inc. is a leading manufacturer and global supplier of Stainless Steel 310/310S Forged Fittings, delivering high-performance components for critical piping systems. These forged fittings are made with cutting-edge forging techniques that increase their durability and strength in harsh environments. Our fittings adhere to standards like ASTM A182 and ASME B16.11. Known for their high chromium and nickel content, 310/310S SS Forged Pipe Fittings resist oxidation and scaling even in high-temperature service. The “S” in 310S stands for reduced carbon content, which reduces the precipitation of carbide during welding. It comes in a variety of finishes, including mirror, bright polished, and rough turned. These fittings meet MSS-SP dimensional requirements and deliver consistent quality in corrosive and thermal environments.

Benefits of ASTM A182 310/310S Forged Fittings

ASTM A182 310/310S Forged Fittings offer outstanding value across high-temperature and corrosive settings.

High-Temperature Performance: Handles temperatures up to 1150°C in continuous service and resists scaling at 1040°C in intermittent use.
Corrosion Resistance: These fittings’ high levels of nickel and chromium make them resistant to oxidation, sulfidation, and water corrosion.
Strength and Durability: Threaded SS 310 Forged Fittings offer enhanced tensile strength and long operational life.
Weldability: Both 310 and 310S grades support seamless welding with low risk of intergranular corrosion.
Low Magnetic Permeability: These austenitic fittings are perfect for sensitive equipment, because they have very little magnetic reaction.

Stainless Steel 310/310S Forged Fittings VS Stainless Steel 316 Forged Fittings

310/310S SS Forged Fittings outperform Stainless Steel 316 Forged Fittings in high-temperature environments due to their higher chromium and nickel content. While SS 316 excels in resistance to chlorides and acidic corrosion, SS 310/310S is more suitable for oxidation resistance and heat-intensive applications. The low carbon variant, 310S, minimizes carbide precipitation, a concern during welding, which is not a limitation in 316. Additionally, SS 310/310S has an advantage in furnace-based, and thermal systems because of its superior resistance to carburizing atmospheres.

Stainless Steel 310/310S Forged Fittings Specifications

Types of Stainless Steel 310/310S 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 310/310S Forged Fittings Needs

Contact us today to discuss how Stainless Steel 310/310S 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

SS 310/310S Forged Fittings chemical composition

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	N
SS 310	0.015 max	2.0 max	0.15 max	0.020 max	0.015 max	24.00 – 26.00	0.10 max	19.00 – 21.00	54.7 min
SS 310S	0.08 max	2.0 max	1.00 max	0.045 max	0.030 max	24.00 – 26.00	0.75 max	19.00 – 21.00	53.095 min

SS 310/310S Forged Fittings of Mechanical Properties

Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
7.9 g/cm3	1402 °C (2555 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	40 %

SS 310/310S Forged Fittings Equivalent Grades

STANDARD	WERKSTOFF NR.	UNS	JIS	BS	GOST	AFNOR	EN
SS 310	1.4841	S31000	SUS 310	310S24	20Ch25N20S2	–	X15CrNi25-20
SS 310S	1.4845	S31008	SUS 310S	310S16	20Ch23N18	–	X8CrNi25-21

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 Process of Stainless Steel 310/310S Forged Fittings

Raw Material

Cutting

Sizing

Heat Treatment

Pickling

Beveling

Polishing

Sand Blasting

Pickling / Passivating

Inspection

Analytic

Marking

Packing & Shipping

Applications of Stainless Steel 310/310S Forged Fittings

Austenitic SS 310S Forged Fittings serve across demanding sectors that require temperature stability and corrosion resistance. In chemical processing plants, they manage aggressive media and temperature extremes without degrading. These fittings operate under sulfur-rich conditions, and under varying pressures in oil and gas refineries. Their cleanability and hygienic qualities are essential to the pharmaceutical sector. Power generation facilities, especially those involving superheated steam, use Seamless/Welded 310 Stainless Steel Fittings for reliable operation. Aerospace applications use them for engine and exhaust components where thermal fatigue resistance is critical.

Offshore Industry

Nuclear Industries

Refineries

Ship Building

Aerospace

Pharmaceutical

Why Choose Midland Alloys Inc.

Midland Alloys Inc. offers premium Stainless Steel 310/310S Forged Fittings; you can trust us for delivering reliable performance even in the most demanding circumstances. We manufacture in full compliance with ASTM A182 and ASME SA182, supported by ISO-certified processes that ensure product traceability and dimensional precision. We also provide a wide variety of customizing options. As an Indian manufacturer of 310/310S SS Forged Fittings, we provide industries in the Gulf, Europe, Africa and Southeast Asia. We keep a large inventory in Mumbai for prompt delivery. Each fitting undergoes strict in-house testing, third-party inspection, and is backed by mill certification. Our team ensures timely delivery, handles project-specific needs, and manages both small and bulk export volumes with professional accuracy.

FAQs – Stainless Steel 310/310S Forged Fittings

What is the maximum pressure rating of SS 310/310S forged socket weld and threaded fittings?

Pressure ratings depend on fitting size and class. Typically, Class 3000 forged socket weld and threaded SS 310S fittings can handle up to 300 bar at ambient temperature.

How do Stainless Steel 310/310S Forged Fittings perform in cryogenic environments?

Although its main characteristic is its resilience to high temperatures, SS 310/310S also maintains a moderate level of toughness at cryogenic temperatures.

How do heat treatment processes affect the mechanical properties of SS 310/310S forged fittings?

Rapid cooling after solution annealing at 1040–1150°C enhances corrosion resistance, refines grain structure and recovers ductility.

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