25Cr is shorthand for a kind of super duplex stainless steel, based upon a composition of 25% chromium. How Does 25CR differ from Standard Stainless Steel? Chromium is a normal component of Stainless Steel — where it is used to increase the steel’s resistance to oxidation. An increase in the level of chromium increases this […]
S32750 and S32760 are both super duplex stainless steels (SDSS). As such, their microstructure is a combination of austenitic and ferritic grains, which imparts the most favourable properties of each. They are based upon a 25% chromium content (25Cr), but differences in their mechanical properties, physical properties and composition are small.
SDSS is an acronym for Super Duplex Stainless Steel. A duplex stainless steel is a combination of a ferritic and an austenitic microstructure, and combines the most favourable properties of each. There are a number of different SDSS available, as the family of alloys based upon a 25% chromium (25Cr) content has developed since the 1960’s.
Alloy 255 is a generic description of our unique Ferralium 255 super duplex stainless steel (DIN 1.4507, UNS S32550, ASTM F61).
CD3Mn is a cast product specification most closely aligning to the wrought super duplex stainless steel product UNS S32205.
CD4MCuN is a cast product specification most closely aligning to the wrought super duplex stainless steel product UNS S32550.
CD3MWCuN is a cast product specification most closely aligning to the wrought super duplex stainless steel product UNS S32760.
Impact toughness is the ability of a metal to withstand a suddenly applied shock load and is quantified by the amount of energy absorbed.
As they are an alloy of several different metals, the melting point of stainless steel happens over a temperature range.
The main advantage of duplex stainless steel is its ability to provide extremely cost-effective performance compared with other all alloys.
One of the main risks of failure for stainless steels is from chloride stress corrosion cracking, but duplex grades are generally resistant.
Sigma phase is a chromium-rich intermetallic phase found in stainless steels, that forms when an alloy is cooled slowly.