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A stainless steel is a type of steel that resists corrosion. The composition of a steel product is based upon iron, and a stainless steel needs at least 11.5% chromium in order to resist general corrosion. Therefore, steels with more than 11.5% chromium content are known as stainless steels. There are several families of different […]

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 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 […]

‘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 […]

Alloy 718 is a high-strength, corrosion-resistant nickel chromium alloy.

Nickel alloys retain their room temperature properties over a far wider temperature range than many stainless steels.

Copper-nickel alloys (cupronickels) provide the most acceptable high-strength option for a copper alloy.

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.

Sigma phase is a chromium-rich intermetallic phase found in stainless steels, that forms when an alloy is cooled slowly.