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Stainless Steels
Super duplex stainless steels provide far higher strength and corrosion resistance than 316. Therefore, the immediate answer is yes – super duplex is better than 316. ‘Duplex’ stainless steels are a family of stainless steels that contain a mixed microstructure of austenite and ferrite phases. They offer a combination of good corrosion resistance and high […]
Super Duplex
Super duplex stainless steels are grades that have a combination of austenitic and ferritic microstructures, based upon a chromium content of 25%. There have been a large number of grades developed over the last 50 years that meet this basic classification. However, the most popular ones are described below. ASTM A182 F51 equates to UNS […]
Super Duplex
‘Duplex’ stainless steels are a family of stainless steels that contain a mixed microstructure of austenite and ferrite phases. They offer a combination of good corrosion resistance and high strength, making them suitable for a wide range of applications. Within the family of ‘duplex’ stainless steels, there are numerous specific grades using different compositions to […]
Nitronic is a trademark belonging to AK Steel Inc and covers a family of more highly alloyed austenitic stainless steels.
Austenitic stainless steels retain their impact strength at very low temperatures.
Duplex stainless steels are based around a composition of 22% chromium, whereas super duplex stainless steels are based around 25%.
2205 duplex is used in applications where Alloy 316L is not sufficient, but the cost differential to super duplex grades is too great.
Super Duplex
Sigma phase is a chromium-rich intermetallic phase found in stainless steels, that forms when an alloy is cooled slowly.
Super Duplex
SAF is an acronym of Sandvik Austenitic Ferritic and is a registered trademark of Sandvik Intellectual Property AB.
Super Duplex
S32520 is the Unified Numbering System (UNS) designation for a super duplex stainless steel close to that of Ferralium 255.
Super Duplex
(More commonly known as: Duplex 2205 / 2205 Stainless Steel / UNS S31803 or UNS S32205) SAF 2205 is the Sandvik Materials Technology tradename for their 22% chromium duplex stainless steel. It is more widely known by its Unified Numbering System (UNS) designation S32205, and is also referenced in international standards as DIN 1.4462 and […]
Super Duplex
HVD-1 is the designation of a super duplex stainless steel developed for use in fertiliser production.
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Up to 40 sizes per alloy available
More sizes equal less machining and a more cost-effective supply chain.
