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Super Duplex

What is CD3Mn?

CD3Mn is a cast product specification most closely aligning to the wrought super duplex stainless steel product UNS S32205.

What is CD4MCuN?

CD4MCuN is a cast product specification most closely aligning to the wrought super duplex stainless steel product UNS S32550.

What is CD3MWCuN

CD3MWCuN is a cast product specification most closely aligning to the wrought super duplex stainless steel product UNS S32760.

What is the Impact Toughness of Duplex and Super Duplex Stainless Steels?

Impact toughness is the ability of a metal to withstand a suddenly applied shock load and is quantified by the amount of energy absorbed.

What is the melting point of stainless steel?

As they are an alloy of several different metals, the melting point of stainless steel happens over a temperature range.

What are the advantages and disadvantages of duplex stainless steel?

The main advantage of duplex stainless steel is its ability to provide extremely cost-effective performance compared with other all alloys.

What are the chloride limits for duplex stainless steel?

One of the main risks of failure for stainless steels is from chloride stress corrosion cracking, but duplex grades are generally resistant.

What is sigma phase in duplex stainless steel?

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

Can heat treatment of duplex stainless steel change its properties?

Heat treatment of duplex stainless steel is usually restricted to their initial production, in the form of solution annealing.

What is ferrite content?

Ferrite content is a measure of the amount of ferrite in a steel. Ferrite is one form of microstructure that may exist within a steel.

What is ferrite content in duplex stainless steel?

Ferrite content in duplex stainless steels should be close to 50%, and within the range of 35-60%, in order to optimise their properties.

What is ASTM A473?

ASTM is the American Society for Testing and Materials, and A473 is the ‘Standard Specification for Stainless Steel Forgings’.

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