Socket Weld Fittings Type 3000LB High Pressure Pipe Fittings | Zzfittings https://www.zzfittings.com/products/socket-weld-fittings/ Top Steel Pipe Fittings Manufacturer Mon, 20 Oct 2025 01:47:05 +0000 zh-Hans hourly 1 https://wordpress.org/?v=6.9.1 224578074 Socket Weld Tee https://www.zzfittings.com/product-details/socket-weld-tee/ Mon, 12 Aug 2019 04:02:23 +0000 https://www.zzfittings.com/?post_type=products&p=4829 Socket weld fittings are available in tee, elbow, coupl […]

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]]> Socket weld fittings are available in tee, elbow, coupling, cap, union, cross. They are used to the systems requiring exceptional strength of welded joints.

Steel pipe tee can be divided into straight or equal tee and reducing tee. Depending on the run pipe and branch diameter.

We are known as specialist in ASME B16.11 / BS3799 socket weld fittings, and supply different size, grades, specification, thickness as customer’s requirements.

Socket Weld Tee Dimensions and Type

Size 1/8”, 1/4”, 3/8”, 1/2”, 3/4”, 1”, 1 1/4”, 1 1/2”, 2”, 2 1/2”, 3”, 4”
Pressure 3000LB, 6000LB, 9000LB
Standard  ASME, JIS, DIN, GB/T, BS

ASME B16.11 Socket Weld Tee Dimensions 

Socket Weld Tee Drawing

DN NPS B C A G
3000 6000 9000 3000 6000 9000 3000 6000 9000
6 1/8 10.9 3.18 3.18 3.96 3.43 – – 11.0 11.0 – 2.41 3.15 –
8 1/4 14.3 3.78 3.30 4.60 4.01 – – 11.0 13.5 – 3.02 3.68 –
10 3/8 17.7 4.01 3.5 5.03 4.37 – – 13.5 15.5 – 3.20 4.01 –
15 1/2 21.9 4.67 4.09 5.97 5.18 9.53 8.18 15.5 19 25.5 3.73 4.78 7.47
20 3/4 27.3 4.09 4.27 6.96 6.04 9.78 8.56 19 25.5 28.5 3.91 5.56 7.82
25 1 34.0 5.69 4.98 7.92 6.93 11.38 9.96 22.5 27.0 32.0 4.55 6.35 9.09
32 11/4 42.8 6.07 5.28 7.92 6.93 12.14 10.62 27.0 32.0 35.0 4.85 6.35 9.70
40 11/2 48.9 6.35 5.54 8.92 7.80 12.7 11.12 32.0 38.0 38.0 5.08 7.14 10.15
50 2 61.2 6.93 6.04 10.92 9.50 13.84 12.12 38.0 41.0 54.0 5.54 8.74 11.07
65 21/2 73.9 8.76 7.62 – – – – 41.0 – – 7.01 – –
80 3 89.9 9.52 8.30 – – – – 57.0 – – 7.62 – –
100 4 115.5 10.69 9.35 – – – – 66.5 – – 8.56 – –
  1. The even thickness around the socket bore shall not be less than the average value, the thickness at partial areas can be the min one.
  2. Considering the tolerance of outside diameter of pipe, the diameters of some socket bore can be a little larger than the ones specified in B16.11
  3. When the sizes of the connecting pipes are not conformed to the ones specified in this catalog, the sizes of the connecting pipes shall be provided in the purchase specification.

Socket Weld Equal Tee

The branch diameter is same as run pipe diameter. So we also call it as straight tee. They are widely used in the small piping system.

Socket Weld Reducing Tee

As the other reducing pipe fittings, reducing tee has the different diameter for the ends. So they can change fluid direction, speed and volume.

What is Socket Weld?

A Socket Weld is a pipe attachment detail in which a pipe is inserted into a recessed area of a valve, fitting or flange. In contrast to buttweld fittings, they are not need to do beveling for welding preparation and have lower construction cost.

ASME Socket Weld Tee Weight Chart

The weight chart of socket weld tee is based on the ASME B16.11 and BS3799 standard specification, which covers Class 3000lb, 6000lb and 9000lb.

Nominal Size Approximate Weight/kg
DN NPS 3000 LB 6000 LB 9000 LB
6 1/8 0.13 0.22
8 1/4 0.13 0.22
10 3/8 0.16 0.45
15 1/2 0.35 0.55 1.15
20 3/4 0.4 0.9 1.8
25 1 0.66 1.46 2.25
32 1 1/4 1 1.9 3.95
40 1 1/2 1.4 3.4 4.87
50 2 2.2 3.7 8.89
65 2 1/2 4 7.2
80 3 6.15 10.7
100 4 14.3

Stainless Steel Socket Weld Fittings

ASTM A182 F304, F304L, F304H, F316, F316L, F309, F310, F317, F321, F947

The material are conform to ASME A182 and dimensions for stainless steel forged fittings conform to ASME B16.11

Carbon Steel Socket Weld Fittings

ASTM A105, A350 LF2 & LF3, A694 F52, F56, F60, F65, F70

The material are conform to ASTM/ASME A105/SA105 and dimensions for carbon steel forged fittings conform to ASME B16.11

Material & Grades of Forged Fittings :

Carbon Steel :
ASTM A105 / A105N,ASTM A350 LF2 / LF3, A694 F42 / 46 / 52 / 56 / 65 / 70

Alloy Steel :
ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91

Stainless Steel :
ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L

Duplex & Super Duplex Steel :
ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61

Copper Alloy Steel :

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

Nickel Alloy :
ASTM SB564, SB160, SB472, SB162 Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No.N10276), Alloy 20 (UNS No. N08020)

Certificates for Customer

Commercial invoice and packing list for custom clearance.

Certificate of origin help customer to reduce the import tax.

EN10204 3.1 mill test certificate guarantee the quality.

Bill of loading (BL) used to pick up the goods.

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]]> 4829 Class 3000 Socket Weld Fittings https://www.zzfittings.com/product-details/class-3000-socket-weld-fittings/ Tue, 11 Jun 2019 08:37:51 +0000 https://www.zzfittings.com/?post_type=products&p=4383 Class 3000 Socket Weld Fittings are covering Stainless […]

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]]> Class 3000 Socket Weld Fittings are covering Stainless Steel 90 Degree Elbow, Straight & Reducing Tee, Cross, Steel Pipe Coupling, Cap, Union & Lateral.

They are produced to as standard of BS3799 and ANSI B16.11  and used only in conjunction with ANSI Pipe and are available in the same size range.

The ASME B16.11 fittings are most commonly used in industrial applications. The ASME has been responsible for producing pipe safety equipment. The standard is followed worldwide. This covers the aspects of the ratings, dimensions, tolerances, marking, and material requirements for socket-welding and threaded, hence all the forged fittings.

What is Difference between Socket Weld and Butt Weld Fittings?

Socket Weld Fittings VS Butt Weld Fittings

Socket Weld Fittings VS Butt Weld Fittings

  • Size

NPS 1/8 to 4  ( Socket Weld) and NPS 1/2 to 48 ( Butt Weld)

  • Thickness

Class 3000, 6000, 9000 ( Socket Weld Fittings) and Schedule 10S, 20, STD, 40, 80, XS, 160, XXS ( Butt Weld)

  • Surface

Anti rust oil for Socket Weld Fittings / Blasting & Painting for Butt Weld Fittings.

  • Connection

Socket weld means a pipe is inserted into the body of fittings and then welding.

Butt weld means beveling end of pipe and fittings, then welding together.

  • Cost

The price of socket weld fittings is higher than butt weld fittings in same size, but easier to install.

What is Tolerance for ASME Socket Weld Fittings?

Dimensions and tolerances shown are as specified in ASME/ANSI B16.11-1991. These agree substantially with BS3799:1974.

This ASME standard covers socket-welding and threaded forged fittings. However, These pipe fittings are characterized as Class 2000, 3000, and 6000 for threaded end fittings and Class 3000, 6000, and 9000 for socket-weld end fittings respectively.

Nominal Diameter All Fittings 90° 45° Elbow Tee Cross Lateral Coupling Half Coupling Reducing insert Union (Socket and Thread)
Socket Bore Water Way Bore Center To Bottom of Socket Laying Lengths Laying Lengths Length Assem Nominal
DN NPS d1 d2 A H E F L
6-8 1/8-1/4 – – ±0.8 ±1.5 ±0.8 ±1.5
10-20 3/8-3/4 +0.3/0 ±0.4 ±1.5 ±3 ±1.5 ±1.5
25-50 1-2 – – ±2 ±4 ±2 ±1.5
65-100 2 1/2-4 +0.4/0 ±0.8 ±2.5 ±5 ±2.5 ±1.5

Material & Grades of Forged Steel Fittings

Stainless Steel Socket Weld Fittings

ASTM A182 F304/304L/304H, F316/316L, F310, F317, F321, F309, F347, F904L

Carbon Steel Forged Fittings

ASTM A105, A694 F52, F60, F65, F70, A350 LF2, LF3

Duplex Steel 90 Degree Elbow

ASTM A182 F51, F53, F55, S 31803, 32205, 32550, 32750, 32760

Nickel Alloy Class 3000 Pipe Fittings

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 06600 (INCONEL 600 ) , UNS 06601 (INCONEL 601) , UNS 06625 (INCONEL 625) , UNS 10276 (HASTELLOY C 276)

Cooper Alloy Steel Socket Weld Fittings

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 C 70600 ( CU -NI- 45/10) , C 71500 ( CU -NI- 70/30)

Alloy Steel Forged Pipe Fittings

ASTM A182 F1, F5, F9, F11, F12, F22, F91

How Do We Pack & Mark Socket Weld Fittings?

Packing

Lining up all 3000 lb pipe fittings in cartons after surfaced anti-rust oil.

Sticking packing list on the outside of cartons.

Putting cartons into wooden case and bundle it.

Marking

Each socket weld fittings shall be permanently marked with the required identification by raised lettering or stamping. Which includes the type, size, pressure, material, grade and heat number.

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]]> 4383 Socket Weld Coupling https://www.zzfittings.com/product-details/socket-weld-coupling/ Thu, 23 May 2019 00:56:41 +0000 https://www.zzfittings.com/?post_type=products&p=4237 Socket weld coupling is a combination of provision that […]

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]]> Socket weld coupling is a combination of provision that can join two pipes or tubes together with a socket at one end or both ends.

Socket Weld Fittings also cover  90 degree elbow, 45 degree elbow, tee, cross, union, cap, lateral. Duplex stainless steel pipe fittings is our hot sale product, especially Class 3000 Stainless Steel Socket Weld Fittings in material grade 304 & 316.

They are used for their good mechanical properties in the as-cast (and therefore as-welded condition) and their excellent corrosion resistance properties (particularly to stress corrosion cracking).

Socket Weld Coupling Dimensions

Size 1/8”, 1/4”, 3/8”, 1/2”, 3/4”, 1”, 1 1/4”, 1 1/2”, 2”, 2 1/2”, 3”, 4”, 6″
Pressure 3000LB and 6000LB
Standard GB/T14626, ANSI B16.11, BS3799
Form Full Coupling and Half Coupling, Straight Coupling and Reducing Coupling
Socket Weld Coupling Dimensions

Socket Weld Coupling Dimensions

Material & Grades for Full Coupling

Stainless Steel Full Coupling

ASTM A182 F304/304L/304H, F309S/309H, F310S, F316/316L, F317, F321, F347

Alloy Steel Full Coupling

ASTM A182 F1, F5, F9, F11, F12, F22, F91

Carbon Steel Forged Coupling

ASTM A105, A694 F52, F60, F65, F70, A350 LF2, LF3

Duplex Steel Forged Coupling

ASTM A182 F51, F53, F55, F50, F57, F59, F60, F61

RFQ of Class 3000 Pipe Fittings

What is your package?

Cartons and Wooden Cases.

How to against rust during the shipment?

Surfaced anti-rust oil on the body of coupling before shipping.

B16.11 Full Coupling Weight Chart

The weight of coupling is available in both socket weld and threaded. The size is from NPS 1/8″ to 4″ and pressure ratings cover Class 3000# and 6000#. So we can call them as high pressure pipe fittings.

Nominal Size Threaded Socket Weld
DN NPS 3000# 6000# 3000# 6000#
6 1/8 0.06 0.09 0.06 0.06
8 1/4 0.08 0.13 0.06 0.08
10 3/8 0.11 0.24 0.08 0.1
15 1/2 0.22 0.4 0.14 0.16
20 3/4 0.3 0.52 0.2 0.28
25 1 0.55 1.06 0.28 0.48
32 1 1/4 0.86 1.32 0.48 0.66
40 1 1/2 1.26 2.2 0.52 0.84
50 2 1.65 3.37 1 1.6
65 2 1/2 3 4.81 1.6 2.2
80 3 4.25 7.25 1.8 2.4
100 4 7.8 12 2.8 –

Inspection of Steel Pipe Coupling

  1. Visual the surface
  2. Measure the dimensions.
  3. Check the marking.
  4. Test the properties.

Export Country for Forged Steel Fittings

Asia: Vietnam, Singapore, India, Indonesia, Malaysia, Thailand, Kazakhstan

Africa: Nigeria, Madagascar,Ghana, Kenya, Angola, Mauritius, Uganda

Middle East: Saudi Arabia, Qatar, Israel, Egypt, Oman, Jordan

Latin America: Uruguay, Peru, Chile, Brasil, Ecuador, Colombia

Oceania: Papua New Guinea, Australia, New Zealand, Solomon

Europe: Greece, UK, Poland, Ukraine, France, Spain, Italy, Ukraine

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]]> 4237 Socket Weld Elbow https://www.zzfittings.com/product-details/socket-weld-elbow/ Thu, 04 Apr 2019 05:22:56 +0000 https://www.zzfittings.com/?post_type=products&p=4005 Leading manufacturer and supplier Zizi exports best qua […]

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]]> Leading manufacturer and supplier Zizi exports best quality Low Temp Carbon Steel 1″ Class 6000 Socket Weld 90 Degree Elbow ASTM A350 LF3 to South Africa.

Socket weld fittings are usually used in chemical, oil, power plant and fire control industries with high pressure, high temperature and small diameter. Their leak proof are better than threaded fittings.

Socket Weld Type Fittings

Socket Weld 90 Degree Elbow Dimensions

Nominal  Size Socket
Bore Dia.		 Bore Dia. of Fittings Socket Wall Thickness Body Wall Depth of Socket Center to Bottom of Socket
DN NPS B D C G min J min A
3000 6000 9000 3000 6000 9000 3000 6000 9000 90 Elbow
ave min ave min ave min 3000 6000 9000
6 1/8 10.9 6.1 3.2 3.18 3.18 3.96 3.43 2.41 3.15 9.5 11 11
8 1/4 14.3 8.5 5.6 3.78 3.3 4.6 4.01 3.02 3.68 9.5 11 13.5
10 3/8 17.7 11.8 8.4 4.01 3.5 5.03 4.37 3.2 4.01 9.5 13.5 15.5
15 1/2 21.9 15 11 5.6 4.67 4.09 5.97 5.18 9.53 8.18 3.73 4.78 7.47 9.5 15.5 19 25.5
20 3/4 27.3 20.2 14.8 10.3 4.9 4.27 6.96 6.04 9.78 8.56 3.91 5.56 7.82 12.5 19 22.5 28.5
25 1 34 25.9 19.9 14.4 5.69 4.98 7.92 6.93 11.38 9.96 4.55 6.35 9.09 12.5 22.5 27 32
32 11/4 42.8 34.3 28.7 22 6.07 5.28 7.92 6.93 12.14 10.62 4.85 6.35 9.7 12.5 27 32 35
40 11/2 48.9 40.1 33.2 27.2 6.35 5.54 8.92 7.8 12.7 11.12 5.08 7.14 10.15 12.5 32 38 38
50 2 61.2 51.7 42.1 37.4 6.93 6.04 10.92 9.5 13.84 12.12 5.54 8.74 11.07 16 38 41 54
65 21/2 73.9 61.2 8.76 7.62 7.01 16 41
80 3 89.9 76.4 9.52 8.3 7.62 16 57
100 4 115.5 100.7 10.69 9.35 8.56 19 66.5

Standard: ASME/ANSI B16.11, BS3799, SH3410, JIS B2316, HG/T21634

Size: 1/8″, 1/4″, 3/8″, 1/2″, 3/4″, 1″, 1 1/4″, 1 1/2″, 2″, 2 1/2″, 3″, 4″

Pressure Ratings: 3000 LB, 6000 LB, 9000 LB

Form: Straight and Reducer Elbow

Surface: Anti-rust Oil, Galvanized, PE Coating.

Socket Weld Elbow Weight

Socket Weld 90 Degree Elbow
 Nominal Size Approx.Weight/kg
DN NPS 3000 6000 9000
6 1/8 0.09 0.15
8 1/4 0.09 0.15
10 3/8 0.12 0.32
15 1/2 0.26 0.4 0.85
20 3/4 0.35 0.65 1.48
25 1 0.52 1.25 2.2
32 11/4 0.85 1.4 2.9
40 11/2 1.05 2.35 3.5
50 2 1.75 2.96 4.35
65 21/2 2.8
80 3 4.9
100 4 9.6

Material & Grades of Forged Steel Elbow

Stainless Steel Socket Weld Elbow

ASTM A182 F304/304L, F304H, F316/316L, F310, F317, F321, F947

Carbon Steel 90 Degree Elbow

ASTM A105, A350 LF2, LF3, A694 F52, F60, F65, F70

Alloy Steel Threaded Elbow

ASTM A182 F1, F5, F9, F11, F12, F22, F91

Duplex Steel Pipe Elbow

ASTM A182 F51, F53, F55, S 31803, S 32205, S 32550, S 32750, S 32760

Main features of socket elbow

Connection method: Socket welding is used. The end of the pipe is inserted into the socket inside the elbow, and then a circumferential fillet weld is made on the outside of the elbow. This connection ensures high sealing and strength.

Good sealing: The socket weld connection provides very good leakage protection, as the weld is located on the outside of the fitting, reducing the risk of internal media leakage.

High strength: The combination of forging process and socket weld connection makes the socket weld elbow with high mechanical strength, able to withstand medium and high pressure piping system.

Easy to install: Compared with butt-welded connections, socket welds require slightly less skill on the part of the installer and are easier to center, especially in small-diameter pipelines. Since the weld is on the outside, it is also easy to visually inspect.

Size range: Typically used for small diameter piping (typically less than or equal to DN50 or NPS 2), as the efficiency and cost advantages of socket weld connections are reduced in larger diameter piping.

Carbon Steel Socket Weld Pipe Fittings

Socket Weld Pipe Fittings

Socket Weld Pipe Fittings

Package of Socket Weld Fittings

We marked all Carbon Steel Socket Weld Pipe Fittings with Grade, Lot No, Size, Standard and Pressure Ratings. Our workers sleeved 90 Degree Elbow SW into plastic bag individually, put them into carbons and wooden cases, bundled wooden cases with nylon rope.

Clear labels are tagged on the outside of the package for easy identification of the quantity and product I.D. great care is taken during operation and transportation.

Inspection of 90 Degree Elbow

  1. Visual the surface.
  2. Check the marking.
  3. Measure dimensions.

Advantages of Forged Steel Fittings

  • Good Quality
  • Fast Delivery
  • Safe Package
  • Abundant Stock
  • Reasonable Price
  • Various Types

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]]> 4005 Socket Weld Cap https://www.zzfittings.com/product-details/socket-weld-cap/ Mon, 01 Apr 2019 00:52:04 +0000 https://www.zzfittings.com/?post_type=products&p=3952 Forged Pipe Fittings ISO 9001:2008 certified manufactur […]

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]]> Forged Pipe Fittings

ISO 9001:2008 certified manufacturer Zizi exports 3/4″ Class 3000 Socket Weld Cap which made by top class material of Stainless Steel 304 to Mexico market.

Socket weld fittings are frequently applied in pipelines within 4 inch, they are durable, beautiful as well as resistant to pressure, high temperature and corrosion. We manufactured them in accordance with ASME B16.11.

3/4 Pipe Cap Dimensions

Socket Weld Cap Dimensions

Socket Weld Cap Dimensions

Standard: ASME B16.11, BS3799

Diameter: 1/8″, 1/4″, 3/8″, 1/2″, 3/4″, 1″, 1 1/4″, 1 1/2″, 2″, 2 1/2″, 3″, 4″

Pressure Ratings: 3000LB, 6000LB, 9000LB

Surface: Anti-rust Oil, Galvanized

Material Grades of Forged Steel Pipe Caps

Duplex Steel: ASTM A182 F51, F53, F55, S 31803, S 32205, S 32550, S 32750, S 32760

Carbon Steel : ASTM A105, A694 F52, F60, F65, F70, A350 LF2, LF3

Alloy Steel Socket Weld Cap: ASTM A182 F1, F5, F9, F11, F12, F22, F91

Stainless Steel: ASTM A182 F304/304L, F304H, F316/316L, F310, F317, F321

Socket Weld Cap Weights

Steel Pipe Cap Weights

Steel Pipe Cap Weights

Stainless Steel Socket Weld Fittings

Package

We marked all Stainless Steel 304 Socket Weld Fittings with Grade, Lot No, Size, Standard and Pressure. The workers sleeved 3/4 inch Socket Weld Cap into plastic bag individually, put all of them into cartons and wooden cases, then bundled package with nylon rope.

Clear labels are tagged on the outside of the package for easy identification of the quantity and product I.D. Great care is taken during operation and transportation.

Inspection

  1. Visual the surface of cap body. Such as dents, die marks, porosity, undercuts etc.
  2. Check the marking. Such as size, material code, material grade, thickness, heat No.
  3. Measure dimensions. Such as outside dimensions, inner dimensions, wall thickness.
  4. Test the chemical composition of stainless steel socket weld cap.

Advantages

  • Good Quality
  • Fast Delivery
  • Safe Package
  • Abundant Stock
  • Attractive Price
  • Reliable Shipment

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]]> 3952 Socket Weld Union https://www.zzfittings.com/product-details/socket-weld-union/ Thu, 07 Mar 2019 09:18:00 +0000 https://www.zzfittings.com/?post_type=products&p=3374 Forged Steel Fittings MSS SP 83 is the specification fo […]

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]]> Forged Steel Fittings

MSS SP 83 is the specification for Class 3000 socket weld union which cover size tolerance, marking, material in carbon steel, alloy & stainless steel.

1 1/2 inch Socket Weld Union, ASTM A182 F53 Duplex Steel Pipe Fittings, ASME B16.11 Forged Steel Fittings are in hot sale with attractive price and quality.

We produces high pressure socket weld fittings for connecting pipes or other fittings together in many industrial processes that no leakage can be permitted. Socket welding provides a strong and efficiency joint to support this function. And limited by its manufacturer standard, it is more suitable for small diameters application below 4 inch.

Class 6000 Unions in duplex steel A182 F53 have excellent corrosion resistance and high strength so that they are high demanded in chemical industries such as pulp and paper mills. Duplex steel fittings are solid and lasting, even in the most demanding circumstances, they can perform well.

Steel Pipe Union Fitting Dimensions

Socket Weld Unions Dimensions

Socket Weld Unions Dimensions

Standard: ASME/ANSI B16.11, BS3799, MSS-SP-83

Diameter Range: 1/8″, 1/4″, 3/8″, 1/2″, 3/4″, 1″, 1 1/4″, 1 1/2″, 2″, 2 1/2″, 3″,4”

Type: Socket Weld Union and Threaded Union.

Material Grades of Pipe Union ASME

Duplex Steel Union

ASTM A182 F51, F53, F55, S 31803, S 32205, S 32550, S 32750, S 32760

Stainless Steel Union

ASTM A182 F304/304L, F304H, F316/316L, F310, F317, F321

Alloy Steel Pipe Coupling

ASTM A182 F1, F5, F9, F11, F12, F22, F91

Carbon Steel Socket Weld Union

ASTM A105, A350 LF2, LF3, A694 F52, F60, F65, F70

MSS SP 83 Socket Weld Union Weight

MSS SP 83 Specification covers the rating, marking, weight, tolerance. The weight unit for 3000# socket weld union as following is kg/pc.

DN NPS 3000#
6 1/8 0.06
8 1/4 0.06
10 3/8 0.08
15 1/2 0.14
20 3/4 0.2
25 1 0.28
32 1 1/4 0.48
40 1 1/2 0.52
50 2 1
65 2 1/2 1.6
80 3 1.8

Package of Duplex Steel Socket Weld Fittings

Marked socket weld fittings with Size, Pressure, Grade, Standard and Heat No.

All duplex steel union fittings is surfaced with oil before packing.

Sleeved forged steel fittings into plastic bag individually.

Packed them in carton and wooden cases, then bundled packages with nylon rope.

Stick shipping mark on the outside of the package for easy identification.

Inspection of Steel Pipe Unions

Visual the surface of socket weld union body.

Check the marking ” 1 1/2″ SW Union ASTM A182 F53 ASME B16.11 Z168″

Measure dimensions of class 3000 union. Such as diameter, thickness, and size of the socket.

Why Choose Us for Steel Pipe Fittings

  • ISO and CE certified quality
  • Short delivery
  • Safe package
  • Abundant stock
  • Reasonable price
  • One stop service
  • Full specification

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