Quality Control In Stainless And High Alloy Castings, 20PEERS Conference

Cast components of high alloy stainless steel and high nickel alloys find a variety of applications in the paper and pulp industry. These castings can display a plethora of microstructural features to make them functional for the intended service requirements. Standard austenitic, high nickel containing austenitic, duplex, precipitation hardened and martensitic stainless steels need heat treatment prior to intended use, especially when aqueous corrosion resistance is the key requirement. Additionally, being a cast product these components are susceptible to solidification defects which can influence the product quality. A properly defined procurement specification coupled with an internal specification is the recipe for the performance of high quality castings and adhering to such practices can lead to positive user experiences. This contribution shall review the key facets necessary for achieving the same. The focus shall be on both destructive testing as well as non-destructive testing aspects necessary to ensure product technological performance and conformance. 

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