Our swage product is registered with the TSSA as a fitting not as a forged product. We stamp our carbon steel product as an example WPB rather than A105. ASTM A234 requires the fitting to be in the stress relieved condition so there is no need to mark our product as normalized. The majority of our customers are not concerned that the swage product be stamped N for normalized.
The normalizing process is associated with forged products such as A105 bar or flanges. Our starting material is hot rolled bar (usually C1018). Normalizing is a type of stress relieving. The manufacturing method used to produce hot rolled bar produces a product that needs no further heat treatment. Keddco has had several microscopic grain analyses done to determine that the material we use will comply with the normalized specification. We know our product has the same physical characteristics as the normalized product but we cannot in good conscience identify our swages and bull plugs as normalized, but as stated above we are not required to indicate the N when stamping our product as a fitting.
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