Inconel 725 VS 625
INCONEL Alloy 725 is comparable in many ways to the popular INCONEL Alloy 625, another superalloy known for its high strength and versatility. Both grades offer similar levels of excellent corrosion resistance, allowing them to be used in some of the harshest environments. This corrosion resistance helps INCONEL 725 alloy maintain its renowned strength and is highly resistant to hydrogen embrittlement and stress corrosion cracking – two factors that can negatively impact the material's continued strength.

INCONEL Alloy 725 is developed from INCONEL Alloy 625, building on its already impressive foundation and adding elements and treatments to enhance its mechanical properties to provide even greater strength. Therefore, it is approximately twice as strong as annealed INCONEL Alloy 625.

INCONEL 725 alloy is also available in a higher strength version, the 725HS alloy. The material offers the same excellent corrosion resistance as its base material, but is 2.3 times stronger than annealed INCONEL Alloy 625 and has a yield strength approximately 20ksi higher than standard INCONEL Alloy 725. This is achieved by optimizing the age hardening process and grain refinement. The material can be used for components in ship construction, where seawater resistance is crucial but extreme strength is also required.

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