: Hot-formed fittings finished above 1150°F (620°C) and below 1800°F (980°C) do not require additional treatment if cooled in still air. However, cold-formed fittings must be normalized or stress-relieved ( Zhengzhou Huitong Pipe Fittings ).
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: Including Radiographic (RT) or Magnetic Particle (MT) testing where specified. Frequently Asked Questions Is ASTM A234 WPB the same as A106 Grade B? : Hot-formed fittings finished above 1150°F (620°C) and
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