A234 WP11 elbow

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ASTM A234 WP11 eblows can effortlessly be bent and welded. ASME SA 234 wp11 that shape significant connections between numerous pipes of different sizes. ANSI B16. 9 Elbow A234 WP11 is the free machining version of this grade, accessible in a bar shape for utilizing in automatic screw machines.

A324 WP11 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

Chemical Composition (%) of ASTM A234 WP11

GradeCMnPSSiCrMoNiCuVNb
WP11 CL10.05-0.150.30-0.600.030.030.50-1.001.00-1.500.44-0.65----
WP11 CL2/30.05-0.200.30-0.800.040.040.50-1.001.00-1.500.44-0.65----

Mechanical properties of ASTM A234

Tensile RequirementsWPBWP11CL1　WP11CL3
Tensile Strength, min, ksi[MPa]60-8560-85　75-100
(0.2% offset or 0.5% extension-under-load)[415-585][415-585]　[520-690]
Yield Strength, min, ksi[MPa]323045
[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.

A234 WP11 elbows exported to Singapore

  • SMLS Elbow LR90
  • A234 WP11

Process

Killed steel, with forgings, bars, plates, sheet, and seamless or fusion-welded tubular products with filler metal added. Forging or shaping operations performed by hammering, pressing, piercing, extruding, upsetting, rolling, bending, fusion welding, machining, or by a combination of two or more of these operations.

Heat Treatment

After forming at an elevated temperature, fittings are cooled to a temperature below the critical range under suitable conditions to prevent injurious defects caused by too rapid cooling, but in no case more rapidly than the cooling rate in still air. Heat treatment temperatures specified are metal (part) temperatures. Heat-treated fittings are to be treated according to paragraph 7 in Specification A960/A960M.

Reference Documents

  • ASTM A216/A216M Specification for Steel Castings, Carbon, Suitable for Fusion Welding, for High-Temperature Service
  • ASTM A217/A217M Specification for Steel Castings, Martensitic Stainless and Alloy, for Pressure-Containing Parts, Suitable for High-Temperature Service
  • ASTM A960/A960M Specification for Common Requirements for Wrought Steel Piping Fittings
  • ASME B16.9 Steel Butt-Welding Fittings
  • ASME B16.11 Forged Steel Fittings, Socket Welding and Threaded

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