Guides for engineers and buyers sourcing machined stainless steel parts.https://stainlesscnc.com/https://stainlesscnc.com/blog/quoting-stainless-work-profitably/https://stainlesscnc.com/blog/quoting-stainless-work-profitably/Stainless jobs lose money in predictable places: grade assumptions, finishing, certificates and work hardening. What to check before you price a stainless RFQ.Fri, 25 Sep 2026 00:00:00 GMThttps://stainlesscnc.com/blog/what-a-machining-lead-is-worth/https://stainlesscnc.com/blog/what-a-machining-lead-is-worth/Close rate, average order value, margin and repeat business decide what a machining lead is worth. The arithmetic, and the four numbers most shops do not track.Fri, 25 Sep 2026 00:00:00 GMThttps://stainlesscnc.com/blog/where-machining-leads-come-from/https://stainlesscnc.com/blog/where-machining-leads-come-from/Marketplaces, RFQ platforms, directories, your own site, outbound and lead matching. What each channel costs a machine shop and what kind of work it brings.Fri, 25 Sep 2026 00:00:00 GMThttps://stainlesscnc.com/blog/17-4-ph-machining-conditions/https://stainlesscnc.com/blog/17-4-ph-machining-conditions/Condition A, H900, H1025, H1075 and H1150 explained for buyers. What each one buys in hardness, what it costs in corrosion resistance and how size moves.Mon, 21 Sep 2026 00:00:00 GMThttps://stainlesscnc.com/blog/2205-duplex-machining/https://stainlesscnc.com/blog/2205-duplex-machining/2205 has twice the yield strength of 316L and a PREN near 35. What that buys in chloride service, what it costs in the machine and when it is overkill.Mon, 21 Sep 2026 00:00:00 GMThttps://stainlesscnc.com/blog/303-vs-304-vs-316l-machining/https://stainlesscnc.com/blog/303-vs-304-vs-316l-machining/303 cuts twice as fast as 316L and pits where 316L holds. A comparison of machinability, corrosion resistance, welding and cost for the three common grades.Mon, 21 Sep 2026 00:00:00 GMThttps://stainlesscnc.com/blog/316-vs-316l-vs-316ti/https://stainlesscnc.com/blog/316-vs-316l-vs-316ti/The difference is carbon and what it does at a weld. How to choose between 316, 316L and 316Ti for a machined part, and when the choice does not matter.Mon, 21 Sep 2026 00:00:00 GMThttps://stainlesscnc.com/blog/citric-vs-nitric-passivation/https://stainlesscnc.com/blog/citric-vs-nitric-passivation/Both are covered by ASTM A967 and they are not interchangeable on every grade. How to choose between citric or nitric, and which acceptance test to call out.Mon, 21 Sep 2026 00:00:00 GMThttps://stainlesscnc.com/blog/iso-13485-vs-iso-9001-machined-parts/https://stainlesscnc.com/blog/iso-13485-vs-iso-9001-machined-parts/When a medical device component genuinely needs an ISO 13485 shop, when ISO 9001 is enough and what each certificate does and does not tell you about a shop.Mon, 21 Sep 2026 00:00:00 GMThttps://stainlesscnc.com/blog/machining-stainless-weldments/https://stainlesscnc.com/blog/machining-stainless-weldments/Welded stainless assemblies move, sensitise and distort. How to sequence machining around welding and what to specify so the part comes out straight and sound.Mon, 21 Sep 2026 00:00:00 GMThttps://stainlesscnc.com/blog/martensitic-stainless-410-416-420-440c/https://stainlesscnc.com/blog/martensitic-stainless-410-416-420-440c/Martensitic stainless holds an edge and takes a bearing load, at the cost of corrosion resistance. Where 410, 416, 420 and 440C fit on a machined part.Mon, 21 Sep 2026 00:00:00 GMThttps://stainlesscnc.com/blog/nitronic-60-galling-resistant-stainless/https://stainlesscnc.com/blog/nitronic-60-galling-resistant-stainless/Galling is the failure mode that ruins stainless threads, valve stems and sliding fits. What causes it and where Nitronic 60 solves it on a machined part.Mon, 21 Sep 2026 00:00:00 GMThttps://stainlesscnc.com/blog/passivation-vs-electropolishing/https://stainlesscnc.com/blog/passivation-vs-electropolishing/What passivation actually removes, what electropolishing adds, which standards to name on the drawing and when a medical or food part needs both processes.Mon, 21 Sep 2026 00:00:00 GMThttps://stainlesscnc.com/blog/prototype-vs-production-stainless/https://stainlesscnc.com/blog/prototype-vs-production-stainless/Setup, fixturing and first article dominate small stainless batches. Where the cost curve flattens, and how to order prototypes without paying twice later.Mon, 21 Sep 2026 00:00:00 GMThttps://stainlesscnc.com/blog/stainless-grades-for-food-contact/https://stainlesscnc.com/blog/stainless-grades-for-food-contact/Which stainless grades belong in food and dairy equipment, what surface finish cleanability actually requires and what 3-A and NSF ask of a machined part.Mon, 21 Sep 2026 00:00:00 GMThttps://stainlesscnc.com/blog/stainless-machining-cost-drivers/https://stainlesscnc.com/blog/stainless-machining-cost-drivers/Six things set the price of a machined stainless part. Which ones you can change on the drawing, which ones you cannot and how to read a quote that looks high.Mon, 21 Sep 2026 00:00:00 GMThttps://stainlesscnc.com/blog/stainless-steel-cnc-machining-guide/https://stainlesscnc.com/blog/stainless-steel-cnc-machining-guide/How grade, work hardening, tolerance and passivation change the price of a machined stainless part, and what belongs on the drawing before you ask for quotes.Mon, 21 Sep 2026 00:00:00 GMThttps://stainlesscnc.com/blog/stainless-tolerances-what-they-cost/https://stainlesscnc.com/blog/stainless-tolerances-what-they-cost/What tolerance bands are routine, tight and expensive on machined stainless, why the material makes them harder to hold and how to spend them where they matter.Mon, 21 Sep 2026 00:00:00 GMThttps://stainlesscnc.com/blog/surface-finish-ra-stainless-guide/https://stainlesscnc.com/blog/surface-finish-ra-stainless-guide/Ra 3.2, 1.6, 0.8 and 0.4 micrometre explained in terms of process and price, plus why an average roughness number does not describe a cleanable surface.Mon, 21 Sep 2026 00:00:00 GMThttps://stainlesscnc.com/blog/threading-and-tapping-stainless/https://stainlesscnc.com/blog/threading-and-tapping-stainless/Broken taps, galled fasteners and stripped threads are the common stainless failures. How thread depth, pitch, method and grade decide whether yours work.Mon, 21 Sep 2026 00:00:00 GMThttps://stainlesscnc.com/blog/vetting-a-stainless-machine-shop/https://stainlesscnc.com/blog/vetting-a-stainless-machine-shop/What to ask a machine shop before you send a stainless job, which answers matter, and the red flags that show up in a quote rather than in a factory tour.Mon, 21 Sep 2026 00:00:00 GMThttps://stainlesscnc.com/blog/what-to-put-in-a-stainless-rfq/https://stainlesscnc.com/blog/what-to-put-in-a-stainless-rfq/A checklist for stainless machining RFQs. What belongs on the drawing, what belongs in the email and which omissions make three quotes impossible to compare.Mon, 21 Sep 2026 00:00:00 GMThttps://stainlesscnc.com/blog/work-hardening-stainless-parts/https://stainlesscnc.com/blog/work-hardening-stainless-parts/Austenitic stainless hardens where a tool rubs. That single fact drives cycle time, tool cost and scrap. What it means for your drawing and your quote.Mon, 21 Sep 2026 00:00:00 GMT