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XM19 is an alternative description for a more highly alloyed austenitic stainless steel most commonly known as Nitronic 50.

1.4507 is the Werkstoff number for a super duplex stainless steel most commonly known as Ferralium 255.

2.1504 is the Werkstoff number for a copper nickel alloy most commonly known as Hiduron 130.

2.4375 is the Werkstoff number for a nickel-based alloy most commonly known as Monel K-500.

2.4668 is the Werkstoff number for a nickel-based alloy most commonly known as Inconel 718.

2.4856 is the Werkstoff number for a nickel-based alloy most commonly known as Inconel 625.

A super austenitic stainless steel is considered to be one with a Pitting Resistance Equivalent Number (PREN) greater than 40.

Stress corrosion cracking is a form of failure resulting from the combination of corrosive conditions and tensile stresses within an item.

Copper and alloys primarily based upon copper are considered non-magnetic.

The unique patina of copper and its alloys will develop over time and protects the surface from further corrosion.

It is possible to expose austenitic stainless steels to different heat treatments, but there is no increase in strength.

The internal microstructure of austenitic stainless steels is not influenced by an external magnet, and is non-magnetic.