Type: Seamless / Welded
Size Range: 1/2” – 24” ( DN 21.3 – DN 610) for Seamless;
26” – 72” ( DN 660 – DN 1828.8) for Welded.
Wall Thickness: SCH 20 – XXS
Style: Equal / Reducing
Process: Cold-Extruded / Hot-Pressed.
Standard: ASME/ANSI B16.9, GB/T12459, GB/T13401, DIN 2615, SH3408,
SH3409-96, SH3410-96, HG/T21635, DL/T 695, SY/T 0510, etc.
Material: Carbon steel, Low Temperature Carbon Steel,
High Yield Carbon Steel, Alloy Steel, Stainless Steel.
C.S: ASTM/ASME A234 WPB / WPC, ST37.0, ST35.8, ST45.8;
LTCS: A420 WPL6, ASTM/ASME A402 WPL3 / WPL6;
HYCS: ASTM/ASME A860 WPHY 42 / 46 / 52 / 60 / 65 / 70;
AS: ASTM/ASME A234 WP1 / WP12 / WP11 / WP22 / WP5 / WP9 / WP91
/ 15Mo3 / 15CrMoV / 35CrMoV;
SS: ASTM/ASME A403 WP304 / 304L / 304H / 304LN / 304N
/ 316L / 316H 321H / 347H;
Application: Can be widely used in the field of Petroleum,
Aerospace Pharmaceuticals, Chemical, Metallurgy,
Military Industry, Electric Power, Engineering Support, etc.
There are:Butt weld tee,Socket weld tee,Threaded tee
Butt weld tee (BW Tee)
Ends in plain or beveled, connected by butt welding process. It could bear higher pressure than the other connection types. Butt weld tee dimensions shall be specified in pipe NPS (DN) and thickness in schedule, where socket weld tee or threaded tee thickness specified in pressure class ratings.
Socket weld tee (SW Tee)
Like the other socket pipe fittings, it has a ladder shaped area, so to insert the pipe into the tee branches then welding together. It usually used for small diameter tubing systems.
Threaded pipe tee (THD Tee)
Based on SW tee forms, the branch end will be threaded to male or female. So there are male branch tee and female branch tee, which if the tube with male NPT threads, then the tee shall be with female NPT threads.
Pattern | Weld | Seamless |
Nominal size | 1/2”-48” (DN15-DN1200) | 1/2”-20” (DN15-DN500) |
Wall thickness | 2~100mm | 2~50mm |
Bend radius | SCH5S-SCH160 ,XXS | SCH5-SCH160 |
Type | Tee/reducing tee | Tee/reducing tee |
Standard | Specification |
ASTM A234 | Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service |
ASTM A420 | Standard Specification for Piping Fittings of Wrought Carbon Steel and Alloy Steel for Low-Temperature Service |
ASTM A403 | Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings |
Standards: ASTM A403 (For wrought Austenitic stainless steel tee pipe fittings), ASTM A270 (For seamless and welded Austenitic and Ferritic stainless steel sanitary tubing tee)
Grades: TP 304, 304L, 316, 316L, 310, 317 and 321.
Carbon steel tee material: ASTM A234 WPB, WPC; MSS SP-75 WPHY-42, WPHY-46, WPHY-52, WPHY-56, 60, 65 and 70. ASME/ANSI B16.9 for BW tee fittings, ASME/ANSI B16.11 for socket weld and threaded tee fittings.
Alloy steel material: ASTM A234 WP1, WP5, WP9, WP11, WP22, WP91