What is the grade of forged fittings?

What is the grade of forged fittings?

Each fitting has a class grading of 3000, 6000, or 9000, representing the maximum pressure that the stainless steel forged fitting can withstand. Pipes in schedule 80/XS require class 3000 fittings, pipes in schedule 160 require class 6000 fittings, and XXS pipes with thicker walls require class 9000 fittings.

What is forged steel fittings?

Forged steel fittings are pipe fittings that are made from forged carbon steel material. Forging steel is a process that creates very strong fittings. Carbon steel is heated to molten temperatures and placed in the dies. The heated steel is then machined into the forged steel fittings.

What is class 3000 fitting?

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.

What are the pressure ratings of forged steel socket weld fittings?

Socket Weld Fittings are available in pressure ratings of 3000, 6000, and 9000 #.

Why is forging better than casting?

Forging creates metal products with generally higher strength that are typically tougher than metal processed in castings. The larger the metal section being worked on, the harder it is to forge. With casting, molten metal flows into a cavity in a mold or die, which allows for more complex shapes to be easily produced.

How is forged pipe made?

In a Forging pipe manufacturing process, a heated billet is placed in forging die that has a diameter slightly larger than the finished pipe. A hydraulic press of forging hammer with matching inside diameter is used to create cylindrical forging. Forged pipes are normally used for the steam header.

Can a forged pipe fitting bear high pressure?

Forged pipe fittings is in high quality which with higher strength and could bear high pressure. To this fittings you should pay attention to have a uniform wall thickness since they have to be through threading process or machined to socket weld end.

Which is the ASME specification for forged steel fittings?

ASME B16.11 Specification for Forged Steel Fittings ASME B16.11 is the standard for the forged steel fittings, including socket weld and threaded type. Material including carbon steel, alloy steel and stainless steel. Also described as Class 2000, 3000, 6000 threaded end fittings and Class 3000, 6000, and 9000 for socket weld end fittings.

What are the pressure ratings for socket weld fittings?

PRESSURE RATINGS The Fittings shall be designated as pressure classes 2000, 3000 and 6000 for threaded end fittings and class 3000, 6000 and 9000 for socket-weld end fittings Table 1. Correlation of Fittings Class with Schedule Number or Wall Designation of Pipe for Calculation of Ratings.

What are the ASME standards for Socket welds?

Also described as Class 2000, 3000, 6000 threaded end fittings and Class 3000, 6000, and 9000 for socket weld end fittings. ASME B16 standard includes the pipes and fittings material in cast iron, cast bronze, wrought copper and steel. ASME B16.11 (covered by ASME B16), it is used in connecting with equipment in other volumes of ASM B16 series.