July 21, 2025

Class 1000 Threaded Union B464 Uns N08020, Alloy 20

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Here is a rewritten and improved version of the provided content in English, with added details to ensure it exceeds 500 characters and reads more naturally as if written by a human: ---
Model NO.: SS Forged Fitting Union
 Product Type:
        Full coupling, Half coupling, Reducing coupling, Reducer insert, Union, 90° elbow, 45° elbow, Tee, Cross, Cap, Square head plug, Hex head plug, Round head plug, Hex head bushing, Union, Reducing swage, Welding Boss, Mitre Boss, High Pressure Boss, Socket Reducing Insert.
 
Size:
        1/2" to 4" (DN15~DN100)
 
Range(Wall Thickness):

        3000LB to 9000LB
        XS, Sch80, Sch160, XXS.
 
Standard:

        ASME/ANSI B16.11, MSS SP-79, MSS SP-83, MSS SP-95, MSS SP-114, JIS B2316, JIS B2302, etc.
 
Material:

        Stainless steel, Duplex steel, Alloy steel, Carbon steel, Low-temperature steel, Nonferrous metals (Nickel alloy, Aluminum alloy, Titanium alloy, etc.)
 
+ SOCKET WELD FITTINGS

        Socket weld fittings are commonly used for small diameter piping systems, typically NPS 2 or smaller. They involve inserting the pipe into a recessed area of a valve, fitting, or flange. Fillet welds are used to join the components, offering good leakage integrity and structural strength. Although fatigue resistance is lower than butt-welded joints due to the fillet weld geometry, they are still superior to most mechanical joining methods. These fittings are ideal for high-pressure applications across various industrial processes.

        Socket weld fittings are an essential part of high-pressure piping systems and are available in a wide range of sizes and materials to meet different engineering requirements.
 
Types of Threaded Fittings by Class and Size
Description
Class Designation
 
3000 6000 9000
Elbows 45 and 90 degrees, Tees, Crosses, Couplings, Half-Couplings, End or Pipe Caps 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 Size by Wall Thickness SCH 80 / XS SCH 160 XXS
Plugs and Bushings are not identified. They may be used up through Class 6000 NPS.

+THREADED FITTINGS

        Threaded joints are one of the oldest methods for connecting piping systems. Like socket weld fittings, they are primarily used for small diameter piping, generally NPS 2 or smaller. These fittings are suitable for applications where ease of installation and disassembly is important. They are widely used in low-to-medium pressure environments.

Types of Threaded Fittings by Class and Size
Description

Class Designation
2000 3000 6000
Elbows 45 and 90 degrees, Tees, Crosses, Coupling, Half-Coupling, Cap 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
Plugs and Bushings are not identified. They may be used up through Class 6000.  

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