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Forged Fitting

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Union

Stainless Steel Socket Weld Unions are used in low-pressure piping where it is required to dismantle the pipe often. A Forged Socket Weld Union is a screwed joint design. It consists of three interconnected pieces. This fitting has two internal threads and a centerpiece that draws the ends together when rotated. In order to minimize the warping of the seats, the unions should be screwed tightly before the end are welded. ANSI B16.11 Socket Weld Union fittings are available in customizable sizes as per the customers’ requests. HGFF Group Co., Ltd flawlessly produces Socket Weld Unions in order to provide ultimate convenience to its clients.

Standard Specication For Forged Socket Weld Union

Nickel Alloy Forged Socket Weld Union :
ASTM / ASME SB 336, ASTM / ASME SB 564 / 160 / 163 / 472, UNS 2200 (NICKEL 200) , UNS 2201 (NICKEL 201 ) , UNS 4400 (MONEL 400 ) , UNS 8020 ( ALLOY 20 / 20 CB 3 ) , UNS 8825 INCONEL (825) , UNS 6600 (INCONEL 600 ) , UNS 6601 (INCONEL 601) , UNS 6625 (INCONEL 625) , UNS 10276 (HASTELLOY C 276)

Stainless Steel Forged Socket Weld Union:
ASTM A182 F304, F304L, F306, F316L, F304H, F309S, F309H, F310S, F310H, F316TI, F316H, F316LN, F317, F317L, F321, F321H, F11, F22, F91, F347, F347H, F904L, ASTM A312/A182 TP304, TP304L, TP316, TP316L

Duplex & Super Duplex Steel Forged Socket Weld Union :
ASTM A 182 – F 51, F53, F55 S 31803, S 32205, S 32550, S 32750, S 32760, S 32950.

Carbon Steel Forged Socket Weld Union :
ASTM/ ASME A 105, ASTM/ ASME A 350 LF 2, ASTM / ASME A 53 GR. A & B, ASTM A 106 GR. A, B & C. API 5L GR. B, API 5L X 42, X 46, X 52, X 60, X 65 & X 70. ASTM / ASME A 691 GR A, B & C

Alloy Steel Forged Socket Weld Union :
ASTM / ASME A 182, ASTM / ASME A 335, ASTM / ASME A 234 GR P 1, P 5, P 9, P 11, P 12, P 22, P 23, P 91, ASTM / ASME A 691 GR 1 CR, 1 1/4 CR, 2 1/4 CR, 5 CR, 9CR, 91

Copper Alloy Steel Forged Socket Weld Union : ASTM / ASME SB 111 UNS NO. C 10100 , C 10200 , C 10300 , C 10800 , C 12000, C 12200, C 70600 C 71500, ASTM / ASME SB 466 UNS NO. C 70600 ( CU -NI- 90/10) , C 71500 ( CU -NI- 70/30)

 

Forged Fitting Socket Weld Union


Nominal
Diameter		 Outside Diameter Wall Thickness Socket Bore Water wayBore Depth of Socket Length Assem Nominal
Dmin Cmin d1 d2 Jmin L
DN NPS(inches) Socket Threaded Socket Threaded Socket Socket & Threaded Socket Socket & Threaded
6 1/8 21.8 14.7 3.2 2.5 10.65 6.43 10 41.4
8 1/4 21.8 19 3.3 3.1 14.1 9.45 10 41.4
10 3/8 25.9 22.9 3.5 3.2 17.55 13.51 10 46
15 1/2 31.2 27.7 4.1 3.8 21.7 17.07 10 49
20 3/4 37.1 33.5 4.3 4 27.05 21.39 13 56.9
25 1 45.5 41.4 5 4.6 33.8 27.74 13 62
32 11/4 54.9 50.5 5.3 4.9 42.55 35.36 13 71.1
40 11/2 61.5 57.2 5.6 5.1 48.65 41.2 13 76.5
50 2 75.2 70.1 6.1 5.6 61.1 52.12 16 86.1
65 21/2 91.7 85.3 7.7 7.1 73.8 64.31 16 102.4
80 3 109.2 102.4 8.4 7.7 89.8 77.27 16 109