Socked Welding Flanges

Your Professional Socked Welding Flanges Supplier

Shanxi Hongkai Forging Co., Ltd. is located in China Energy Heavy Chemical Industry Base. Dingxiang County, the hometown of forging in Shanxi Province. Convenient transportation, abundant coal and power resources, fast communication and superior environment. Mainly produce flanges and forgings of various specifications. Application in piping installation, pressure vessel, equipment accessories.

Why Choose Us

Our Service
With strong technical force, advanced production technology, perfect quality inspection, and reliable after-sales service, it provides a basis for supervision and cooperation for many customers at home and abroad.

Our Certificate
The company Excellent Supplier of 2019 Safety production standardization certificate Quality management system certification.

Production Market
The products are mainly exported. It is exported to Europe, America and other countries and regions. The product quality is good, and the service is attentive. It is deeply appreciated and trusted by customers and users at home and abroad, and has won a high reputation. They have become one of the largest flange and forging suppliers in China.

Our Factory
Shanxi Hongkai Forging Co., Ltd. is located in China Energy Heavy Chemical Industry Base. Dingxiang County, the hometown of forging in Shanxi Province. Convenient transportation, abundant coal and power resources, fast communication and superior environment.

Types of Socked Welding Flanges

Ansi B16.5 Class300 Socked Welding Flanges

RF Type:

An RF socket weld flange features a small raised portion around the flange bore, serving as a seat for the gasket, promoting effective sealing.

RTJ Type:

The RTJ type entails a groove on the raised face surface, allowing for the placement of a gasket ring to enhance sealing performance.

Socket Weld Flange vs. Slip-On Flange:

A socket weld flange closely resembles a slip-on flange, but it distinguishes itself by having a shoulder within the inner bore.

Standard Specification of Socked Welding Flanges

	Standard Specifications
Dimensions	ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
Size	1/2" (15 NB) to 48" (1200NB)
Class	150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
DIN	DIN 2527, DIN 2566, DIN 2573, DIN 2576, DIN 2641, DIN 2642, DIN 2655, DIN 2656, DIN 2627, DIN 2628, DIN 2629, DIN 2631, DIN 2632, DIN 2633, DIN 2634, DIN 2635, DIN 2636,DIN 2637, DIN 2638, DIN 2673
BS	BS 4504 , BS 4504, BS 1560, BS 10
PN	PN6, PN10, PN16, PN25, PN40
Flange Face Type	Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Features Of Socked Welding Flanges

Socket weld flanges can replace threaded flanges, reducing the risk of leakage.

Welding occurs externally to the pipe, preventing penetration of the pipe bore.

Socket weld flanges eliminate internal pockets, reduce the risk of warpage due to welding heat, and minimize damage to the flange face caused by the weld spatter.

It offers the same internal pressure capacity as slip-on flanges while improving fatigue resistance.

Material & Grades of Socked Welding Flanges

Material & Grades
Stainless Steel Socket Weld Flange	ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L
Duplex & Super Duplex Steel Socket Weld Flange	ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61
Carbon Steel Socket Weld Flanges	ASTM / ASME A/SA 105 ASTM / ASME A 350, ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F706
Low Temperature Carbon Steel Socket Weld Flanges	ASTM A350, LF2, and LF3
Alloy Steel Socket Weld Flanges	ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91
Copper Alloy Steel Socket Weld Flanges	ASTM SB 61 , SB62 , SB151 , SB152 UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200

Applications of Socked Welding Flanges

Oil and Gas Industry

In the oil and gas sector, socket weld flanges are used in pipelines, processing plants, and offshore platforms.

Chemical Processing

These flanges ensure the safe and effective transportation of chemicals by enduring acidic materials and harsh environments.

Power Generation

Socket weld flanges are frequently used in power plants’ piping systems for important operations like cooling water circulation and steam distribution.

Construction and Manufacturing

Socket weld flanges are used in manufacturing and construction settings to connect pipes in a variety of systems, including industrial processes, gas distribution, and water supply.

FAQ

Q: What are socket welds used for?

A: Socket welding (SW) is used for welding pipes and fittings including reducers, tees and elbows. Socket weld pipe fittings are used to permanently join pipes that are inserted into a recess in the fitting, flange or valve. Once correctly inserted, fillet type sealing welds are applied to join the pipe to the fitting.

Q: What is the difference between slip on and socket weld flanges?

A: Socket welded flange shape is similar to slip on flange, differently it has a shoulder at the inner bore. Slip On Flange - No shoulder at inner bore. Socket weld flange static strength is equal to slip on flange, but it's fatigue strength is 50% higher than the double welded slip on flange.

Q: What is the application of socket weld flange?

A: Socket-weld pipe flanges are typically useful on smaller sizes of high-pressure pipes. These pipe flanges are attached by inserting the pipe into the socket end and applying a fillet weld around the top. It allows for a smooth bore and better flow of the gas or fluid inside the pipe.

Q: What is the difference between socket weld flange and weld neck flange?

A: Usually, the socket weld flange is not welded in the flange of the pipe and the shoulder. Weld neck flange has a long conical hub, often used in high pressure applications. The sealing surface of the welding neck flange is RF (raised face), FF(flat face) and ring joint (RTJ).

Q: What type of welding application should be used on a slip on flange?

A: This is because a slip on style flange will accept a pipe with a fillet weld connection, whereas a weld neck flange will have a reinforced hub at the base and form a weld bevel connection directly to the butt weld end of a pipe.

We're well-known as one of the leading socked welding flanges manufacturers and suppliers in China. If you're going to wholesale high quality socked welding flanges with competitive price, welcome to get more information from our factory. Also, customized service is available.

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