ASTM A105 is for ‘Carbon Steel Forgings for Piping Applications’ ASTM A234 is for ‘Piping Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service’. The bar used by Keddco is hot rolled not forged and is more readily available. In most cases the material used by Keddco for swages and bull plugs will also comply with the A105 specification.
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