Occasional writing on AMS 2750, Nadcap audits, and running a heat-treat shop on software that understands them.https://heatlock.app/https://heatlock.app/blog/sat-vs-tus-what-each-one-proves/https://heatlock.app/blog/sat-vs-tus-what-each-one-proves/A system accuracy test and a temperature uniformity survey answer different questions. Passing both is not redundancy — and a furnace can be current on one while the other is what stops your load.Mon, 10 Aug 2026 00:00:00 GMThttps://heatlock.app/blog/what-a-nadcap-heat-treat-audit-walks-through/https://heatlock.app/blog/what-a-nadcap-heat-treat-audit-walks-through/An auditor does not read your dashboard. They pick a job and follow it backwards to the thermocouple. Here is the path they take, and the point at which most shops start reaching for a spreadsheet.Mon, 10 Aug 2026 00:00:00 GMThttps://heatlock.app/blog/what-ams-2750-requires-of-your-software/https://heatlock.app/blog/what-ams-2750-requires-of-your-software/The standard governs furnaces and instruments, not applications — but four of its requirements decide whether a system can support compliance or quietly undermines it. A practical guide to evaluating heat-treat software against the spec.Mon, 10 Aug 2026 00:00:00 GMThttps://heatlock.app/blog/why-heat-treat-breaks-a-generic-erp/https://heatlock.app/blog/why-heat-treat-breaks-a-generic-erp/Every ERP models an order moving through operations. Heat treat runs charges, and a charge is assembled across customers. That single mismatch is why the real schedule ends up on a whiteboard.Mon, 10 Aug 2026 00:00:00 GMThttps://heatlock.app/blog/visual-shop-bluestreak-steelhead-sunset/https://heatlock.app/blog/visual-shop-bluestreak-steelhead-sunset/Steelhead has acquired both and published the date each will be retired. What that means for your pyrometry records, and the questions worth asking while you still have leverage.Sat, 08 Aug 2026 00:00:00 GMT