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.
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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 | ||||
| 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 | |||||||
| 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 | ||||||
Class 300 Blind Flange Dimension
| 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