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  • ASTM A234 WPB UNEQUAL TEE 2''X1'' SCH40 ASME B16.9


  • Material:ASTM A234 WPB UNEQUAL TEE 2''X1'' SCH40 ASME B16.9
  • production:Pipe Fittings
  • Production standards:ASME B16.9



There are two types of Tee used in piping, Equal / Straight Tee, and Reducing / Unequal Tee

Reducing tee is another type of pipe tee used in pipe and tube fittings. Pipe Tees are available two popular forms—have all outlets of the same size or they can be reducing tees in which they are with a combination of different outlet sizes.

Reducing tee, like all pipe tees, is in the shape of T with two ends of equal size and the third one slightly smaller. In other words, reducing tee is a type of pipe fitting in which the branch port size is smaller than the ports of the run. This type of pipe fitting can also consider size reduction from one of the run ports to the other.


1. What is ASTM A234 gr WPB tee?

ASTM A234 gr WPB tee is a type of carbon steel fitting used for Piping connection in all industrial plants such as Oil & Gas, Petrochemical etc. All ASTM A234 gr WPB tee, SA234 Grade WPB Pipe Reducing Tee, ASTM A234 WPB Barred Tee & ASTM A234 WPB Carbon Steel equal tees are produced from European sourced raw material at Neelcon Steel. We offer these ASTM A234 Wpb Tee in sizes 6”nb to 40”nb and thicknesses 5mm to 35mm. All Tee ASTM A234 Gr Wpb are manufactured from plate, pressed in two halves with three weld seams. We offer 100% radiography on all ASTM A234 Tee welds as standard.

2. Equivalent grade of ASTM A234 gr WPB tee

Pipe Pipe Tee Fitting Flanges Valves Bolts & Nuts
A106 Gr A A234 Gr WPA tee A105 A216 Gr WCB A193 Gr B7
A194 Gr 2H
A106 Gr B ASTM A234 gr WPB tee A105 A216 Gr WCB
A106 Gr C A234 Gr WPC tee A105 A216 Gr WCB


3. Chemical Composition of ASTM A234 WPB Pipe Tee

Chemical Composition (%) of ASTM A234 Pipe Tee

Grade C Mn P S Si Cr Mo Ni Cu V Nb
WPB 0.3 0.29-1.06 0.05 0.058 0.1min 0.4 0.15 0.4 0.4 0.08 0.02
WPC 0.35 0.29-1.06 0.05 0.058 0.1min 0.4 0.15 0.4 0.4 0.08 0.02
WP11 CL1 0.05-0.15 0.30-0.60 0.03 0.03 0.50-1.00 1.00-1.50 0.44-0.65 - - - -
WP11 CL2/3 0.05-0.20 0.30-0.80 0.04 0.04 0.50-1.00 1.00-1.50 0.44-0.65 - - - -


  • For each reduction of 0.01% below the specified C maximum, an increase of 0.06% Mn above the specified maximum will be permitted, up to a maximum of 1.35%.
  • The maximum carbon equivalent (C.E.) shall be 0.50, based on heat analysis and the formula C.E.=C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15.
  • The sum of Cu, Ni, Cr, and Mo shall not exceed 1.00%.
  • The sum of Cr and Mo shall not exceed 0.32%.

4. Mechanical Properties of ASTM A234 WPB Tee

Check below ASTM A234 WPB Pipe Tee Properties before you order.

Tensile Requirements WPB WPC, WP11CL2 WP11CL1  WP11CL3
Tensile Strength, min, ksi[MPa] 60-85 70-95 60-85  75-100
(0.2% offset or 0.5% extension-under-load) [415-585] [485-655] [415-585]  [520-690]
Yield Strength, min, ksi[MPa] 32 40 30 45
[240] [275] [205] [310]

Where the wall thickness lies between two values above, the min elongation value is determined by the following equations:

  • Longitudinal E=48t+15.00
  • Transverse E=32t+10.00
  • E = elongation in 2in [50mm], %
  • t = actual thickness of specimen, in [mm]

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