CoatingIQ
← Course index

Knowledge check (9 of 9)

100%

Lesson 02·Substrate selection

Steel selection by application — hot-work, warm-work, and the special cases

Pick H13, H11, premium hot-work grades (DIEVAR, QRO 90 Supreme, W360 ISOBLOC), PM hot-form grades (CPM 1V), or Nitralloy 135M for the right job. Read a Uddeholm or Bohler datasheet without getting sold.

10 min readLesson 2 of 13

Knowledge check

A supplier recommends premium ESR H13 for a hot-trim die that has been failing by edge wear, not by cracking. The grade's certificate documents a tighter ASTM E45 inclusion rating and NADCA #207 Grade A carbide segregation. Is this the right grade for the failure mode, and what would you ask the supplier before signing the PO?