Knowledge Hub

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A welded tube will contain at least a longitudinal weld running the length of the tube where the edges of a formed flat sheet are joined.

A sheet is a thinner item of metal cut from a continuously rolled coil, whereas a plate is a thicker item rolled as a single piece.

Corrosion is a form of chemical reaction which will form a visible corrosion product.

Localised corrosion occurs in specific locations rather than across the entire exposed surface.

General (or uniform) corrosion is the most common form of corrosion, where corrosion occurs across most of the surface area of the metal.

There are many different variants of corrosion, reflecting both the impact of different environments and the failure mechanism.

Forging and casting are fundamentally different processes, so any comparison must consider the particular component and requirements.

Trepanning is the process of creating a hole through the centre of a solid bar, where the metal is removed as a smaller solid bar.

A deep hole is normally considered to be one where its depth is 10 x greater than its diameter.

There are subtle composition differences between super duplex grades, but Ferralium is the only one to exceed a min. yield strength of 85ksi.

Alloy 825 and Alloy 925 are nearly identical in composition, but Alloy 925 is appreciably higher strength.