A234 WP22 elbow

A234 WP22 elbow is the manufacturing process of ASTM A234 WPB.

  • W = WELDABLE / wrought
  • P = RELATED TO P NUMBER OF ALLOY MATERIAL
  • B = REFER TO MINIMUM YIELD OF MATERIAL
A324 WP22 elbow
Measurement the out diameter
A324 WP22 elbow
Measurement the out diameter
A324 WP22 elbow
Measurement the wall thickness twice
CL22 grade steel material re-inspection
CL22 grade steel material re-inspection
A324 WP22 elbow
Measurement the wall thickness
A324 WP22 elbow
Packing
Be packed on pallet
Packing
Pallet after plastic wrap
Packing
Pallet after plastic wrap

Chemical Composition (%) of ASTM A234 WP11

Grade C Mn P S Si Cr Mo Ni Cu V Nb
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

Mechanical properties of ASTM A234

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

Notes:

  • 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 sum of Cu, Ni, Cr, and Mo shall not exceed 1.00%.
  • The sum of Cr and Mo shall not exceed 0.32%.
  • 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.

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