Dear all I have a doubt with ASME Sec. VIII Div. 1 regarding Table UCS-66 (Impact Test Exemption Curves). If a specific material is not listed under either Curve A/B/C/D materials, does that mean there is just no exemption at all ? And my not listed material needs to be impact tested in any case ? Thanks for any input.
If you are using UCS-66 this means you must be using a carbon steel (or low alloy) type material. Read Notes (1)(a) and (2)(c). If the material you are using is acceptable per Section VIII at all, it is covered.
Thanks js55 ! Makes sense what you say. So, with a piping spec. like (S)A-335, I would actually, because of Note 2 (b and/or c), end up in Curve B and Fig./Tab. UCS-66 for the details. I understood. Best regards !
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