Technical notes
Read practical notes on tool steel selection, heat-treatment planning, certificate review and specialty alloy applications.
Match the steel to your environment: use 304 for indoor food-contact use, 316 for chlorides and saltwater. Same rule applies to Bohler N690.
Read MoreChoose Böhler welding rods by matching base metal and service: 304 vs 316, A36 vs 1018, and aluminum temper decide the right filler.
Continue readingChoose 304 unless chlorides are continuous; 316 costs 30-40% more and pays off only in marine or chemical environments. A four-step rule.
Continue readingM390MK isn't premium stainless. Use the mechanism-first test that separates 304 and 316: check molybdenum, define failure mode, compare lifecycle cost.
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