Fournisseur de tuyaux en acier inoxydable Wenzhou Kaixin Chine
A stainless steel forged threaded union is a type of pipe fitting used for joining two pipes together. It has a threaded connection on each end that can be screwed onto the corresponding threads of the pipes, providing a secure and leak-proof joint. The union is made of high-quality stainless steel to prevent rust and corrosion, making it suitable for use in harsh environments and applications where the fluid being transported may be corrosive. It is designed to be easy to install and remove, allowing for quick maintenance or replacement of the pipes without having to cut or weld them. Stainless steel forged threaded unions are widely used in various industries, including chemical processing, pétrole et gaz, fabrication, and food and beverage production.
Specifications of ASME B16.11 Threaded Union (Male / Female)
| Tailles | 1/8″NB TO 4″NB IN (DN6 x DN100) |
| Normes | ASME/ANSI B16.11, MSS SP-79, MSS-SP-95, 83, 97，DIN28011, DIN2617, DIN2616, DIN2615, DIN2605，EN10253-2, EN10253-1 |
| Dimensions | ASME 16.11, MSS SP-79, MSS SP-95, 83, 95, 97, BS 3799 |
| Épaisseur | Schedule 5S, 10S, 20S, S10, S20, S30, MST, 40S, S40, S60, XS, 80S, S80, S100, S120, S140, S160, XXS et etc.. |
| Pressure Class | 2000LBS,3000 LBS, 6000 LBS, 9000 LBS |
| Depuis | Forged Threaded / Screwed Union, Male X Female Threaded Union |
| Notes&Matériels | ASTM / ASME A/SA 182 – F 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316TI, 316H, 316L, 316LN, 317, 317L, 321, 321H, 347, 347H, 904L.ASTM / ASME A/SA 182 – F44, F45, F51, F53, F55, F60, F61.ASTM / ASME SB 564 / 160 / 472 – UNS 2200 (NICKEL 200), NOUS 4400 (MONEL 400), NOUS 8825 INCONEL (825), NOUS 6600(INCONEL 600), NOUS 6601 (INCONEL 601), NOUS 6625 (INCONEL 625), NOUS 10276 (HASTELLOY C 276), NOUS 2201 (NICKEL 201), (ALLOY 20 / 20 CB 3)，ASTM / ASME SB 61 / 62 / 151 / 152 – UNS NO. C 92200, UNS NO. C 83600, UNS NO. 70600, 71500, C 70600 (CU -NI- 90/10), C 71500 (CU -NI- 70/30), UNS NO C 10100, C 10200, C 10300, C 10800, C 12000, C 12200，ASTMA 105/A694/ A350 LF3/A350 LF2 – F42, F46, F52, F56,F60, F65, F70， ASTM A182 – F1, F5, F9, F11, F22, F91，Brass CA 360, CA 345 and CA 377 / SAE J530, SAE J531 and ASA |
| Taper | Socket Weld (S/W) & SCREWED (SCRD) – NPT, BSP, BSPT |
Manufacturing Standards of Threaded Union
| ASME Standard | ASME/ANSI B16.11, MSS SP-79, MSS-SP-95, 83, 97 |
| DIN Standard | DIN28011, DIN2617, DIN2616, DIN2615, DIN2605 |
| EN Standard | EN10253-2, EN10253-1 |
| ASME B16.11 | Threaded |
| ASTM A182 – ASME SA182 | Standard Specification for Wrought Austenitic SS Piping Threaded Fittings |
| MSS SP-95 | Threaded Full Union |
ASME / ANSI B16.11 Threaded Union Material & Notes
| Stainless Steel Threaded Union |
| ASTM A403 WP Gr. 304, 304L, 304H, 310, 316, 316L, 316H, 316De, 317L, 321, 347, 904L |
| Carbon Steel Threaded Union |
| ASTM A234 WPB, WPBW, POURQUOI 70, POURQUOI 65, POURQUOI 60, POURQUOI 52, POURQUOI 46, & POURQUOI 42. |
| Low Temperature Threaded Union |
| ASTM A420 WPL6, ASTM A420 WPL3 |
| Alloy Steel Threaded Union |
| ASTM / ASME A/SA 234 Gr.. WP1, WP5, WP9, WP11, WP12, WP22, WP91 |
| Duplex & Super Duplex Steel Threaded Union |
| ASTM A815, ASME SA815 UNS NO S31803, UNS NO S32205, États-Unis S32750, UNS S32950. Numéro de matériau. 1.4462 |
| Nickel Alloy Threaded Union |
| NOUS 10276 (HASTELLOY C 276), NOUS 6625 (INCONEL 625), NOUS 6601 (INCONEL 601), NOUS 6600 (INCONEL 600), NOUS 8825 (INCONEL 825), NOUS 8020 (ALLOY 20 / 20 CB 3), NOUS 4400 (MONEL 400), NOUS 2201 (NICKEL 201), ASTM / ASME SB 336 NOUS 2200 (NICKEL 200) |
High Pressure Threaded Union Types by Size, Class, and Wall Thickness
| Description | Class Designation | ||
| 2000 | 3000 | 6000 | |
| Threaded Union | 1/2 – 4 | 1/2 – 2 | 1/2 – 2 |
| 1/2 – 4 | 1/2 – 2 | 1/2 – 2 | |
| 1/2 – 4 | 1/2 – 2 | 1/2 – 2 | |
| Pipe Wall | SCH 80 / XS | SCH 160 | XXS |
Threaded Union Dimensions
Stainless Steel Casting Threaded Union Dimensions
| DIMENSIONS OF THREADED UNION (BS3799) (in mm) | ||||||||||||
| Nom. Pipe Size | Pipe End Min | Socket Bore Dia. | Socket Wall Min. | Water Way Bore | Laying Length | Male Flange Min. | Nut Min. | Threads Per 25.4 Max. | Bearing Min. | Depth of Socket Min. | Length Assem. Nominal | Clear Assem. Nut |
| UN | B | C | D | E | F | G | H | J | K | L | N | |
| 1/8 | 21.8 | 10.92
10.67 |
3.17 | 6.83
6.43 |
22.4
19.0 |
3.17 | 3.17 | 16 | 1.24 | 9.6 | 41.1 | 49.0 |
| ¼ | 21.8 | 14.22
13.97 |
3.30 | 9.85
9.45 |
22.4
19.0 |
3.17 | 3.17 | 19 | 1.24 | 9.6 | 41.4 | 49.0 |
| 3/8 | 25.9 | 17.78
17.53 |
3.48 | 13.92
13.51 |
26.9
20.6 |
3.43 | 3.43 | 14 | 1.37 | 9.6 | 46.0 | 55.0 |
| ½ | 31.2 | 21.84
21.59 |
4.06 | 17.47
17.07 |
26.9
20.6 |
3.68 | 3.68 | 14 | 1.50 | 9.6 | 49.0 | 57.0 |
| ¾ | 37.1 | 27.18
26.92 |
4.27 | 21.79
21.39 |
31.8
25.4 |
4.06 | 4.06 | 11 | 1.68 | 12.7 | 56.9 | 67.0 |
| 1 | 45.5 | 34.04
33.78 |
4.95 | 28.14
27.74 |
34.3
26.2 |
4.57 | 4.44 | 11 | 1.85 | 12.7 | 62.0 | 79.0 |
| 11/4 | 54.9 | 42.67
42.42 |
5.28 | 35.76
35.36 |
40.6
32.5 |
5.33 | 5.21 | 11 | 2.13 | 12.7 | 71.1 | 94.0 |
| 11/2 | 61.5 | 48.77
48.51 |
5.54 | 41.61
41.20 |
42.2
34.0 |
5.84 | 5.59 | 10 | 2.31 | 12.7 | 75.5 | 111.0 |
| 2 | 75.2 | 61.47
61.21 |
6.05 | 52.53
52.12 |
45.3
37.3 |
6.60 | 6.35 | 10 | 2.69 | 15.8 | 86.1 | 132.0 |
| 21/2 | 91.7 | 74.17
73.66 |
7.65 | 64.72
64.31 |
61.7
52.1 |
7.49 | 7.11 | 8 | 3.07 | 15.8 | 102.4 | 148.0 |
| 3 | 109.2 | 90.17
89.66 |
8.31 | 77.67
77.27 |
63.8
53.6 |
8.25 | 8.00 | 8 | 3.53 | 15.8 | 109.0 | 175.0 |
ASME B16.11 Threaded Pipe Union Weight
| H-Thrd’s | |||||||||
| Minimum 4 Full Thrd’s Engagement Class 2A/2B Fit   ASME B16.11 Threaded Pipe Union Weight(1) ANSIB1.1 |
|||||||||
| Nom. Tuyau Taille |
Pipe End | Wal | Water Way Bore |
Male Flange |
Nut | Threads Per 25.4mm |
Bearing | Longueur Assem Nom. |
Clear Assem. Nut |
| Min.A | Min.. C | D | Min.F | Min.G | Max.. H | Min.J | L | N | |
| 1/8″ | 14.7 | 2.41 | 8.43 6.43 |
3.18 | 3.18 | 16 | 1.24 | 41.4 | 50.8 |
| 1/4″ | 19.0 | 3.02 | 11.13 9.45 |
3.18 | 3.18 | 16 | 1.24 | 41.4 | 50.8 |
| 3/8″ | 22.9 | 3.20 | 14.27 13.51 |
3.43 | 3.43 | 14 | 1.37 | 46.0 | 55.9 |
| 1/2″ | 27.7 | 3.73 | 17.86 17.07 |
3.68 | 3.68 | 14 | 1.50 | 49.0 | 58.4 |
| 3/4* | 33.5 | 3.91 | 23.01 21.39 |
4.06 | 4.06 | 11 | 1.68 | 56.9 | 66.0 |
| 1′ | 41.4 | 4.55 | 28.98 27.74 |
4.57 | 4.45 | 11 | 1.85 | 62.0 | 78.7 |
| 1-1/4″ | 50.5 | 4.85 | 37.69 35.36 |
5.33 | 5.21 | 11 | 2.13 | 71.1 | 94.0 |
| 1-1/2″ | 57.2 | 5.08 | 43.54 41.20 |
5.84 | 5.59 | 10 | 2.31 | 76.5 | 111.8 |
| 2* | 70.1 | 5.54 | 55.58 52.12 |
6.60 | 6.35 | 10 | 2.69 | 86.1 | 132.1 |
| 2-1/2″ | 85.3 | 7.01 | 66.27 64.31 |
7.49 | 7.11 | 8 | 3.07 | 102.4 | 149.9 |
| 3′ | 102.4 | 7.62 | 88.25 77.27 |
8.26 | 8.00 | 8 | 3.53 | 109.0 | 175.3 |
| 1) Dimensions in Millimeters. | |||||||||
| (2)Upper and lower values for each size are the respective maximum and minimum dimensions. | |||||||||
Angularity Tolerance of Forged Threaded Union
| ND | Angle de sortie maximum | Max hors avion |
| Q | P. | |
| 1/2 un 4 | 1 | 2 |
| 5 un 8 | 2 | 4 |
| 10 un 12 | 3 | 5 |
| 14 un 16 | 3 | 7 |
| 18 un 24 | 4 | 10 |
| 26 un 30 | 5 | 10 |
| 32 un 42 | 5 | 13 |
| 44 un 48 | 5 | 20 |
Available Types of ASME B16.11 Threaded Union
| Stainless Steel Screwed Union | SS Forged Threaded Union |
| ANSI B16.11 Forged Threaded Unions | BS 3799 Forged Screwed Union |
| Forged Threaded Union | Threaded Forged Union |
| Carbon Steel Threaded Unions | High Quality Threaded Union |
| Forged Threaded Union | Forged Screwed Unions |
| 150 lb. Threaded Fittings Union | Threaded Forged Union |
| ASME B16.11 Forged Threaded Unions | Forged Union 3000LB Threaded |
| ASTM A182 Threaded Stainless Steel Unions | Duplex Steel Threaded Union |
| Super Duplex Steel Screwed Union | Copper Nickel Threaded Union |
| High Nickel Alloy Forged Threaded Union | Hastelloy Screwed Union |
| Titanium Forged Threaded Unions | Inconel Threaded Unions |
Threaded Union Applications
- Stainless Steel Forged Threaded Union uses in Oil and Gas Pipeline
- Forged Threaded Union uses in Chemical Industry
- Alloy Steel Threaded Union uses in Plumbing
- Forged Screwed Union uses in Heating
- Threaded Forged Union uses in Water Supply Systems
- ANSI B16.11 Forged Threaded Union uses in Power Plant
- Threaded Union uses in Paper & Pulp Industry
- Forged Screwed Union uses in General Purpose Applications
- Forged Threaded Union uses in Fabrication Industry
- Forged Screwed Union uses in Food Processing Industry
- Forged Threaded Union uses in Structural Pipe
