ASTM A182 F9 Forged Fittings & Flanges

zhao77jie — Thu, 28 Aug 2025 02:00:00 +0000

Recently, one of our long-term valve suppliers encountered a minor issue: while preparing to fulfill a customer order, they discovered a shortage of critical components. Specifically, they were missing ASTM A182 F9 forged fittings and flanges , including ASTM A182 F9 pipe couplings, blind flanges, and socket weld flanges. The challenge lay in the small quantities required and the specialized material specifications. Typically, suppliers rarely offer solutions for such “small-batch + special-material” requests individually.

Upon learning of this situation, we took immediate action. Leveraging our stable inventory and flexible supply chain, we swiftly prepared the required products for the customer and shipped them on time. Ultimately, the valve supplier not only successfully fulfilled the order but also avoided losses from potential delays.

This experience reaffirms our capability: we not only supply large volumes of standardized products but also resolve customers’ challenges in sourcing small-batch, customized, and special-material items.

If you want to know more about alloy material orders, please click

Product List

ITEM	NAME	SIZE	CLASS	MATERIAL	END
1	SW Reduction	1 1/2 x 1″	3000#	ASTM A182 F9	SW
2	RTJ Blind Flanges	1″	300#	ASTM A182 F9	RTJ
3	RTJ Blind Flanges	1 1/2″	300#	ASTM A182 F9	RTJ
4	RTJ Socket Weld flange	1″	300#	ASTM A182 F9	RTJ

Inspection Photos

ASTM A182 F9 Forged Fittings & Flanges Chemical Composition

CHEMICAL	LIMITS	C	Mn	P	S	Si	Ni	Cr	Mo
ASTM A182 F9	MIN		0.30			0.50		8.00	0.90
ASTM A182 F9	MAX	0.15	0.60	0.030	0.030	1.00		10.00	1.10

ASTM A182 F9 Forged Fittings & Flanges Mechanical Property

MATERIAL	T.S (MPA)	Y.S (MPA)	EL %	R/A %	HARDNESS
ASTM A182 F9	585 min	380 min	20 min	40 min	179-217

ASTM A182 Alloy Steel Pipes Fittings Specification

Specifications :	ASTM A182 / ASME SA182
Standard :	ASME B16.11, MSS-SP-79, MSS-SP-83, MSS-SP-95, MSS-SP-97, BS3799
Size :	1/8″ NB to 4″ NB
Type :	Socket weld Fittings, Threaded Fittings
Rating Pressure :	Threaded End – 2000 /3000/ 6000 LBS. Socket-weld End – 3000 / 6000/ 9000 LBS.
Alloy Steel	ASTM A182 F11 / 12 / 5 / 9 / 91 /

Classification of Alloy Steel Forged Fittings

Threaded Fittings:

Features: The pipe fittings have threads inside or outside, and are connected to the pipe by screwing with threads. Installation and removal are convenient and quick, and no welding is required.

Common types: Threaded elbows, threaded tees, threaded nipples, threaded couplings, threaded unions, threaded plugs, etc.

Socket Weld Fittings:

Features: The pipe fittings have a socket at one or both ends. After the pipe is inserted into the socket, it is connected by external fillet welding.

Common types: Socket-Weld elbows, socket-Weld tees, socket-Weld reducers, socket-Weld couplings, socket-Weld unions, socket-Weld pipe caps, etc.

ASTM A182 F9 Flanges Specification

Sealing Face	RF, FF, FTJ
Size Range	1/2” – 48” / DN15 – DN1200
Pressure Rating	Class 150, 300, 600, 900, 1500, 2500lb
Standard	ASME / ANSI B16.5, ASME B16.47 Series A/B
Alloy Steel	ASTM A182 F11 / 12 / 5 / 9 / 91 / 92

Class 3000 Socket Weld Coupling Dimension

Nominal Size		Socket Bore Dia.	Bore Dia. of Fittings			Socket Wall Thickness						Depth of Socket
DN	NPS	B	D			C						J min
			3000	6000	9000	3000		6000		9000
			3000	6000	9000	ave	min	ave	min	ave	min
6	1/8	10.9	6.1	3.2		3.18	3.18	3.96	3.43			9.5
8	1/4	14.3	8.5	5.6		3.78	3.30	4.6	4.01			9.5
10	3/8	17.7	11.8	8.4		4.01	3.50	5.03	4.37			9.5
15	1/2	21.9	15	11	5.6	4.67	4.09	5.97	5.18	9.53	8.18	9.5
20	3/4	27.3	20.2	14.8	10.3	4.9	4.27	6.96	6.04	9.78	8.56	12.5
25	1	34	25.9	19.9	14.4	5.69	4.98	7.92	6.93	11.38	9.96	12.5
32	11/4	42.8	34.3	28.7	22	6.07	5.28	7.92	6.93	12.14	10.62	12.5
40	11/2	48.9	40.1	33.2	27.2	6.35	5.54	8.92	7.8	12.7	11.12	12.5
50	2	61.2	51.7	42.1	37.4	6.93	6.04	10.92	9.5	13.84	12.12	16
65	21/2	73.9	61.2			8.76	7.62					16
80	3	89.9	76.4			9.52	8.30					16
100	4	115.5	100.7			10.69	9.35					19

Nominal Pipe Size		A	C	G	H	I	J	Weight
inch	mm	mm	mm	mm	Holes	mm	mm	kg / piece
1/2	21.3	95.2	14.2	35.1	4	15.7	66.55	0.64
3/4	26.7	117.3	15.7	42.9	4	19	82.5	1.11
1	33.4	123.9	17.5	50.8	4	19	88.9	1.39
11/4	42.2	133.3	19	63.5	4	19	98.5	1.79
11/2	48.3	155.4	20.6	73.15	4	22.3	114.3	2.66
2	60.3	165. 1	22.3	91.9	8	19. 10	127	3.18
21/2	73.0	190.5	25.4	104.6	8	22.3	1.493	4.85
3	88.9	209.5	28.4	127	8	22.3	168.1	6.81
31/2	101.6	228.6	30.2	139.7	8	22.3	184.1	8.71
4	114.3	254	31.7	157.2	8	22.3	200.1	11.5
5	141.3	279.4	35	185.7	8	22.3	234.9	15.6
6	168.3	317.5	36.5	215.9	12	22.3	269.7	20.9
8	219. 1	381	1.620 41.10	269.7	12	25.4	330.2	34.3
10	273.0	444.5	47.7	323.9	16	28.4	387.3	53.3
12	323.8	520.7	50.8	381	16	31.7	450.8	78.8
14	355.6	584.2	53.8	412.8	20	31.7	514.3	105
16	406.4	647.7	57.15	469.9	20	35	571.5	137
18	457.2	711.2	60.45	533.4	24	35	628.6	175
20	508.0	774.7	63.5	584.2	24	35	685.8	221
24	609.6	914.4	69.85	692.2	24	41. 10	812.8	339

Class 300 Socket Weld Flange Dimension

Nominal Pipe Size		A	B	C	D	E	K	F	G	H	I	J	Weight
inch	mm	mm	mm	mm	mm	mm	mm	mm	mm	Holes	mm	mm	kg / piece
1/2	21.30	95.20	15.70	14.20	22.30	22.40	9.60	38.10	35.10	4	15.70	66.55	0.66
3/4	26.70	117.3	20.80	15.70	25.40	27.70	11.10	47.70	42.90	4	19.10	82.50	1.15
1	33.40	123.9	26.70	17.50	26.90	34.50	12.70	53.80	50.80	4	19.10	88.90	1.40
11/4	42.20	133.3	35.10	19.00	26.90	43.20	14.20	63.50	63.50	4	19.10	98.60	1.75
11/2	48.30	155.4	40.90	20.60	30.20	49.50	15.70	69.85	73.15	4	22.30	114.3	2.55
2	60.30	165.1	52.60	22.30	33.20	62.00	17.50	84.00	91.90	8	19.10	127.0	2.93
21/2	73.00	190.5	62.70	25.40	38.10	74.70	19.00	100.0	104.6	8	22.30	149.3	4.40
3	88.90	209.5	78.00	28.40	42.90	90.70	20.60	117.3	127.0	8	22.30	168. 1	5.92

ASTM A182 F9 Product Advantages

High-Temperature Resistance: Suitable for environments exceeding 600°C.

High Strength: Maintains structural integrity under high-pressure conditions.

Corrosion Resistance: Exhibits excellent resistance to oxidizing and sulfidizing environments.

Comprehensive Standards: Complies with international standards including ASTM, ASME, DIN, and EN.

Applications

Power plant boilers and high-temperature piping systems

Petrochemical and refining facilities

Chemical equipment and heat exchangers

Pressure vessels and steam pipelines

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