4. ASME B16.11 Forged steel fittings

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Threaded Outlet

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Description

Threaded Outlet is a type of pipe fitting designed to connect to the main pipe through a threaded connection. This is an important type of fitting in piping systems, helping to create branch pipes without the need for welding, helping to reduce installation work and costs.

Applications

Oil and Gas Systems : Threaded Outlet is widely used in oil and gas pipeline systems to branch and connect equipment, valves or auxiliary pipes.
Chemical Industry : Used in chemical plants to connect tanks, process equipment and piping systems.
Water and water treatment systems : Used in water supply and water treatment systems to branch and connect pipes, valves and other equipment.
Food and beverage processing industry : Used in piping systems to transport raw materials and products.

Standards

ASME B16.11 is an American Society of Mechanical Engineers standard that specifies design, material, dimensional, tolerance, and testing requirements for threaded and forged pipe fittings. This standard covers fittings such as threaded, socket-weld, and forged pipe fittings.

Materials: Fittings shall be made of materials such as carbon steel, stainless steel, and other alloys suitable for pressure and temperature requirements.
Dimensions and Tolerances : The dimensions and tolerances of fittings must comply with the dimensional tables specified in ASME B16.11. This ensures that the fittings can be assembled and operated safely and efficiently in the piping system.
Design and Construction: Threaded Outlet shall be designed to withstand the maximum working pressure specified in the standard. The design shall ensure that the fitting does not leak or fail under working pressure.

Threaded Outlet Dimensions and Thickness Chart (ASME B16.11)

Nominal Size (NPS)	Inside diameter (A)	Length (B)	Height (H)	Wall thickness (C)
1/2	0.84	1.65	1.06	0.84
3/4	1.05	1.90	1.19	0.88
1	1.32	2.10	1.31	0.95
1 1/4	1.66	2.27	1.50	0.95
1 1/2	1.90	2.50	1.69	0.95
2	2.38	2.75	1.94	1.00
2 1/2	2.88	3.12	2.38	1.13
3	3.50	3.50	2.56	1.25
4	4.50	4.00	3.06	1.50

Note:

Nominal Pipe Size (NPS) : Nominal pipe size, commonly used to specify the size of pipes and fittings.
Inside diameter (A) : Inside diameter of the fitting.
Length (B) : Overall length of the accessory.
Height (H) : Overall height of the accessory.
Wall thickness (C) : Wall thickness of the accessory.

Threaded Street Elbow Material Summary

Material	Description	Applications	Common Standards
Carbon steel	Steel has high carbon content, providing high strength and hardness	Water, gas, oil, and other industrial applications	ASTM A105, ASTM A234
Stainless Steel	Steel contains chromium, which helps resist corrosion and heat well.	Food, chemical, pharmaceutical, and corrosive environments industries	ASTM A182, ASTM A403
Steel Alloy	Steel containing additional alloying elements such as nickel, molybdenum, vanadium	High pressure, high temperature, and wear resistant applications	ASTM A182 (F1, F5, F9, F11, F22)
Brass	Alloy of copper and zinc, has good anti-corrosion properties	Water supply systems, oil pipeline systems, and applications requiring electrical conductivity	ASTM B283, ASTM B62
Copper	Red metal, ductile, good conductor of electricity and heat	Plumbing systems, air conditioning systems, and medical applications	ASTM B75, ASTM B88
Nickel Alloy	High nickel alloy, very good corrosion resistance	Chemical, oil and gas, and marine applications	ASTM B564, ASTM B366
Aluminum	Light metal, good corrosion resistance	Oil, gas, water pipeline systems and applications in the food industry	ASTM B241, ASTM B361
Cast Iron	Iron alloy with high carbon content, good strength and wear resistance	Drainage system, air duct system	ASTM A536, ASTM A395

Note:

ASTM (American Society for Testing and Materials) : Is an international standards organization that develops and publishes technical standards for a wide range of materials, products, systems, and services.
A105, A234, A182, B283, B62, B75, B88, B564, B366, B241, B361, A536, A395 : Are specific ASTM standards applicable to pipe materials and fittings.