Carbon Steel Tee-Butt Weld Pipe Fittings

Carbon Steel tee is also a kind of pipe fittings, generally there are two kinds.

Equal diameter tee, both ends of the same diameter, branch pipe and the other two different diameters are called the reducer tee. The tee is a pipe fittings and a pipe connecting piece.
Also called pipe fittings tee or tee pipe fittings, stainless steel, such as tee, tee joints, used in the main pipe to branch office. The three-way is a three-cut, that is, one import, two exports, or two imports, a export of a chemical pipe, there are T-shaped and Y-shaped, there are equal diameter pipe mouth, there are different diameter pipe mouth, for the same or different pipe collection.
 The main function of the tee is to change the direction of the fluid The method is as follows: for the equal-diameter tee, for example, the “t3” (3-inch =dn80) tee, it means that the OD is 3-inch tee. For the reducer tee, for example, “T4x4x3.5” (4 inch =dn100,3.5 inch =dn90) indicates a four-inch reducer with a diameter of 3.5 inches. Material generally for 10# 20# A3 q235a 20g 20G 16Mn ASTM A234 ASTM A105 ASTM A403 etc, tee, OD range in 2.5″-60″ (2.5 inches =dn65,60 in =dn1500), wall thickness 3-60mm, from 26″-6 0″ (26 inch =dn650,60 inch =dn1500) for welded tee. Wall thickness 28-60mm. The pressure levels are sch5s, sch10s, Sch10, Sch20, Sch30, sch40s, STD, Sch40, Sch60, sch80s, Xs;sch80, Sch100, Sch120, Sch140, Sch160, XXS.

A buttweld fitting is a weldable pipe fitting that allows for change of direction of flow, to branch off, reduce pipe size or attach auxiliary equipment. Forged Steel buttweld fittings are manufactured in accordance with ANSI / ASME B16.9.

Butt weld fittings are available as elbows, tees, caps, reduces and out lets (olets). These fittings are the most common type of welded pipe fitting and are specified by nominal pipe size and pipe schedule. Buttweld fittings use seamless or welded pipe as the starting material and are forged (through multiple process) to get he shape of elbows, tees and reducers etc. Just as the pipe is sold from Schedule 10 to Schedule 160, butt weld pipe fittings are sold the same way. Welded butt weld fittings are more common in stainless steel due to cost advantage. Sch 10 fittings are also more common in stainless steel butt weld fitting.

Common material for butt weld fittings are A234 WPB (A & C also available), High Yield Carbon Steel, Stainless Steel 304 and 316 and Nickel Alloys.

Butt Weld Tee

Types of Butt Weld Pipe Fittings

Welded pipe fittings in carbon steel and stainless steel are the joining components that make possible the assembly of valves, pipes and equipment onto the piping system. Welded fittings compliment pipe flanges in any piping system and allows;

• Change direction of flow in a piping system
• Connect or joint pipes and equipment
• Provide branches, access and takeoffs for auxiliary equipment

A common example using welded pipe fitting is a pipe reduced by concentric reducer, welded to a weld neck flange and connected to an equipment. Figure below represent complete collection of butt welded pipe fitting

Steel Butt Welding Pipe Fittings for Oidinary use
and Fuel Gas.
Steel Butt Welding Pipe Fittings.
Steel Socket Welding Pipe Fittings.
Steel Plate Butt Welding Pipe Fittings.
JIS : JAPANESE INDUSTRIAL STANDARDS
Steel Butt Welding Pipe Fittings for Ordinary use.
Steel Butt Welding Pipe Fittings.
Steel Plate Butt Welding Pipe Fittings.
Steel Socket Welding Pipe Fittings.
ASTM : AMERICAN SOCIETY FOR TESTING AND MATERIALS
ASTM A 105
ASTM A 182
ASTM A 234
ASTM A 350
ASTM A 420
ASTM A 694
ASTM B 366
Carbon Steel Forgings for Piping Applications
Forged or Rolled Alloy Steel Pipe Flanges. Forged Fittings,
and Valves and Parts for high Temperature Service
Piping Fittings of Wrought Carbon Steel and Alloy Steel for
Moderate and High Temperature Service
Carbon and Low-Alloy Steel Forgings. Requiring Notch
Toughness Testing for Piping Components
Wrought Austenitic Stainless Steel Piping Fittings
Piping Fittings of Wrought Carbon Steel and Alloy Steel for
Low-Temperature Service
Carbon and Alloy Steel Forgings for Pipe Flanges, Fittings.
Valves. and Parts for High-Pressure Transmission Service
Wrought Ferritic, Ferritic/Austenitic, and Martensitic
Stainless Steel Piping Fittings
Wrought High-Strength Low-Alloy Steel Butt-Welding
Fittings
Factory-Made Wrought Nickel and Nickel Alloy Fittings