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Austenitic Stainlees steel - NACE Compliance
The decision that a particular product / material form is suitable for use is the sole and only responsibility of the user while the fabricator must comply with the limitations set in the document. Actually "certifying" a material to comply is a commercial deviation from the original intent...- ParickT
- Post #4
- Forum: Metal and Metallurgy engineering
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HIC re-test after normalizing ?
The final real heat treatment on an appropriately made steel must be made in the PWHT / tempering range (about 610°C) for the steel to fully develop its HIC resistance. Noramlization temperature treatment before that, either before or after forming according to various rules and choices, is...- ParickT
- Post #6
- Forum: Metal and Metallurgy engineering
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HIC re-test after normalizing ?
It would be highly suggestable to do a HIC test in the expected equipment condition before putting in service. Plate mills do that by testing specimens in as-delivered heat-treat condition PLUS any simulated expectable condition (e.g. exepcted PWHT of equipment, heat treat of formed pieces...- ParickT
- Post #4
- Forum: Metal and Metallurgy engineering
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SOHIC and PWHT
SOHIC can be considered an augmented form of SSC due to crack-jumping, linked to HIC cracking susceptibility ahead of the SSC crack, due to stress and hydrogen local concentration. Hence, mitigation measures against SSC like proper PWHT helps. Also, a HIC resistant steelmaking practice is...- ParickT
- Post #3
- Forum: Corrosion engineering
