4. ASME B16.11 Forged steel fittings

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Threaded Round Head Plug

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Description

Threaded Round Head Plug is a type of pipe fitting used to seal or close the end of a threaded pipe. Its head is round in shape and is designed to be easily screwed in and out. Usually made from materials such as stainless steel, carbon steel, copper, and other alloys, the plug’s threads are precision cut to ensure a tight and tight fit when installed.

Applications

Threaded Round Head Plug is commonly used in piping systems in various industries such as:

Oil and Gas: For sealing pipelines in oil and gas transportation systems.
Chemical: Used in systems for transporting chemical liquids and gases.
Construction: Used in water supply, drainage and HVAC systems.
Manufacturing industry: Used in industrial machinery and equipment to close threaded holes.

Standards

ASME B16.11 specifies dimensional, material, tolerance, strength, and testing requirements for threaded and socket-weld pipe fittings. This standard applies to fittings used in high-pressure piping systems.

Nominal Size: This fitting is available in nominal sizes from 1/2 inch to 4 inches.
Materials: Carbon steel, stainless steel, other alloys.
Pressure: Class 2000, 3000, and 6000: These classes correspond to different working pressure levels at a given working temperature.

Standard size and thickness table of Threaded Round Head Plug according to ASME B16.11

Nominal size (inches)	Outside diameter (D) (inch)	Overall Length (L) (inches)	Thickness (T) (inch)
1/2	0.84	0.75	0.14
3/4	1.05	0.88	0.18
1	1.32	1.00	0.21
1 1/4	1.66	1.13	0.22
1 1/2	1.90	1.25	0.23
2	2.38	1.50	0.27
2 1/2	2.88	1.75	0.30
3	3.50	2.00	0.32
4	4.50	2.25	0.37

Note:

Outside diameter (D): This is the outside diameter of the threaded end of the plug.
Overall Length (L): This is the overall length of the plug from one end to the other.
Thickness (T): This is the thickness of the plug wall.

Summary table of common materials used to manufacture Threaded Round Head Plug

Material	ASTM standards	Describe	Main application
Carbon steel	ASTM A105	Forged carbon steel	High pressure pipeline system, oil and gas, chemical
Stainless Steel 304	ASTM A182 F304	Austenitic stainless steel with good corrosion resistance	Food, chemical, pharmaceutical industry
Stainless Steel 316	ASTM A182 F316	Austenitic stainless steel with molybdenum for enhanced corrosion resistance	Outdoor application, strong chemical environment
Brass	ASTM B62	Copper and zinc alloy	Water supply system, marine industry
Copper-nickel alloy	ASTM B151	Copper and nickel alloy with high corrosion resistance	Marine industry, heat exchange systems
Alloy steel	ASTM A182 F11, F22	Alloy steel with chromium and molybdenum	High pressure, high temperature system
PVC plastic	ASTM D2467	Polyvinyl chloride plastic	Water supply and drainage system, light chemical application
Galvanized steel	ASTM A153	Carbon steel with anti-corrosion zinc coating	Outdoor piping systems, construction applications
Nickel plated steel	ASTM B733	Carbon steel with corrosion resistant nickel coating	Applications requiring high corrosion resistance, industrial equipment

Note:

ASTM Standards: These are specific standards of materials according to ASTM (American Society for Testing and Materials).
Description: A brief description of the material’s properties.
Main applications: Common applications of the material in industry and construction.