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Socket Welding Carbon Steel Flanges

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Socket Welding Carbon Steel Flanges

Socket Welding Carbon Steel Flanges
Socket Welding Carbon Steel Flanges

Large Image :  Socket Welding Carbon Steel Flanges

Product Details:
Place of Origin: China
Brand Name: Socket welding flange
Certification: ISO9001
Model Number: LJ-PF059
Payment & Shipping Terms:
Minimum Order Quantity: 100pcs
Price: 1USD-100USD
Packaging Details: Export standard packaging
Delivery Time: Depends on the quantity of goods
Payment Terms: L/C, T/T
Supply Ability: Annual output 50000 tons

Socket Welding Carbon Steel Flanges

Product Name:: Socket Welding Flange Standard:: GB / ANSI /JIS / DIN
Production Process:: Integral Forging Sealing Surface Form:: RF, MFM, TG, RJ
Application: Industrial,Petroleum Packing: Color Box Or Customized
High Light:

cs socket weld pipe flanges


cs socket welding flange


Socket welding flange refers to the flange welded at the pipe end and outside when the pipe end is inserted into the flange ring ladder.  There are two kinds with and without neck. The flange with neck has good rigidity, small welding deformation and good sealing performance.It can be used in the situation with pressure of 1.0 ~ 10.0MPa. B flange for vessel is also socket welding flange, which is used in the occasion with high sealing requirements. During design, socket welding flange can be checked as integral flange.

Socket welding is to extend the pipe into the valve body for welding. After forming, it is similar to the internal thread connection. Generally speaking, there are more carbon steel pipes and stainless steel pipes below 2 "with socket welding. Butt welding is also used for stainless steel pipes below 2", such as flange flanging of sliding sleeve; butt welding is basically used for titanium pipes, dual phase steel, nickel base alloy, etc.

Socket Welding Carbon Steel Flanges 0


1. Socket welding forms fillet weld, while butt welding forms butt weld.

2.  The butt joint is better than the socket joint according to the strength and stress condition of the weld joint, so the butt joint should be used in the situation of high pressure level and bad service condition.

3. Socket welding is generally used for small pipe diameter less than or equal to Dn40, which is more economical.

4. Butt welding is generally used for Dn40 and above. The connection form of socket welding is mainly used for the welding of small-diameter valves and pipes, pipe fittings and pipes.

5.  Generally, the wall thickness of small diameter pipe is thin, easy to stagger and ablate, and the butt welding is difficult, so it is more suitable for socket welding.

6.  In addition, socket welding has the function of reinforcement, so it is often used under high pressure.


Socket Welding Carbon Steel Flanges 1

Details introduction

1.  The basic shape of the socket flange is the same as that of the flange with neck flat welding.

2.  There is a section of socket on the inner hole of the flange, the pipe is inserted into the socket and welded, and a circle of weld is welded on the back of the flange.

3.  Because there is a gap between the socket flange and tube edge, it is easy to produce corrosion.

4.  If another weld is welded inside, this corrosion can be avoided.

5.  The fatigue strength of the socket flange welded on both sides is 5% higher than that of the flat flange, and the static strength is the same.

6.  When this kind of socket flange is used, its inner diameter shall be the same as that of the pipe. Socket flange is only applicable to pipes with nominal diameter less than 150.


1,  Sealing surface type: RF, MFM, TG, RJ

2,  Material: carbon steel: ASTM A105, 20 × Q235, 16Mn, ASTM A350 LF1, LF2 CL1 / Cl2, LF3 CL1 / Cl2, ASTM a694 F42, F46, F48, F50, f52, f56, F60, F65, F70;

3,  Stainless steel: ASTM A182 f304, 304L, F316, 316L, 1Cr18Ni9Ti, 0Cr18Ni9Ti, 321, 18-8;

4,  Alloy steel: ASTM A182 F1, f5a, F9, F11, F12, F22, F91, a182f12, a182f11, 16MnR, Cr5Mo, 12Cr1MoV, 15CrMo, 12cr2mo1, A335P22, st45.8/Ⅲ;

5,  Manufacturing standard: ANSI B16.5,HG20619-1997,GB/T9117.1-2000—GB/T9117.4-200,HG20597-1997.

6,  Connection mode: flange nut, bolt connection.

7,  Production process: professional overall forging, forging manufacturing, etc.

8,  Processing mode: high precision CNC lathe turning, general lathe finishing, argon arc welding and other processing.

9,  Application scope: Boiler and pressure vessel, petroleum, chemical industry, shipbuilding, pharmaceutical industry, metallurgy, machinery, stamping elbow food industry, etc.


Socket Welding Carbon Steel Flanges 2

Advantage and Disadvantage

1,  There is no problem of beveling; there is no problem of butt joint and wrong edge; the welding position can be adjusted to flat welding.

2,  One is that the stress condition after welding is not good, and it is easy to have incomplete welding, and there is a gap in the pipe system.

3,  Socket welding is not suitable for the pipe system used for the crack corrosion sensitive medium and the pipe system with high cleaning requirements.

4,  Moreover, the wall thickness of the ultra-high pressure pipeline, even the small diameter pipeline, is also very large, and the butt welding can be used to avoid socket welding as much as possible.

Technical data sheet

Pipeline Socket Welding Carbon Steel Flanges data sheet

Socket welding flange
DN Outer diameter of steel pipe Connection size Flange thickness Inside diameter of flange
Socket Flange neck height Theoretical weight
Flange outer diameter Diameter of bolt hole center circle Bolt hole diameter Number of bolt holes thread B2 U N R
10 17.2 14 100 70 14 4 M12 20 11.5 9 18 15 9 34 3 26 1.14
15 21.3 18 105 75 14 4 M12 20 16 12 22 19 10 38 3 26 1.26
20 26.9 25 130 90 18 4 M16 20 21 19 27.5 26 11 48 4 29 1.93
25 33.7 32 140 100 18 4 M16 24 26.5 26 34.5 33 13 52 4 32 2.43
32 42.4 38 155 110 22 4 M20 24 35 30 43.5 39 14 64 5 32 3.17
40 48.3 45 170 125 22 4 M20 26 41 37 49.5 46 16 74 5 34 3.88
50 60.3 57 180 135 22 4 M20 26 52 49 61.5 59 17 86 5 38 4.61


Boiler and pressure vessel, petroleum, chemical industry, shipbuilding, pharmacy, metallurgy, machinery, stamping elbow food and other industries.


a. Plastic bubble bag package b.Wove bag package c.Pallet d. Customized

Delivery time

Our Pipeline Socket Welding Carbon Steel Flanges factory have high ability for production, the delivery time is 45days for small quantity, or if you are hurry for that, we can arrange and meet your shipping date.


Contact Details
Xi'an Longjoy Foreign Trade Co.,Ltd

Contact Person: Rachel Zhang

Tel: 13679287344

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