Guides for engineers and buyers of machined stainless parts to JIS grades, and for the shops that make them.https://suscnc.com/https://suscnc.com/blog/sus303se-sus303cu-free-cutting-grades/https://suscnc.com/blog/sus303se-sus303cu-free-cutting-grades/SUS303Se and SUS303Cu against standard SUS303: what selenium and copper change for finish, cold forming and corrosion, and what a drawing should state.Tue, 20 Oct 2026 00:00:00 GMThttps://suscnc.com/blog/sus-spacers-collars-small-lots-jis-drawings/https://suscnc.com/blog/sus-spacers-collars-small-lots-jis-drawings/How stainless spacers and collars are made from JIS drawings in small lots: length and parallelism, bore and set screw details, stack-up and price breaks.Mon, 19 Oct 2026 00:00:00 GMThttps://suscnc.com/blog/sus-parts-japanese-food-machinery/https://suscnc.com/blog/sus-parts-japanese-food-machinery/Which SUS grade and finish suit machined parts for Japanese food machinery: SUS304 or SUS316L, Ra limits, radii, burr free edges and cleaning before packing.Sun, 18 Oct 2026 00:00:00 GMThttps://suscnc.com/blog/stainless-vacuum-flange-machining-icf-nw-jis/https://suscnc.com/blog/stainless-vacuum-flange-machining-icf-nw-jis/How stainless vacuum flange parts are machined: ICF knife edges, NW and KF faces, JIS flange drawings, finish, flatness, leak paths and what to check.Sat, 17 Oct 2026 00:00:00 GMThttps://suscnc.com/blog/seisekisho-inspection-report-japanese-buyers/https://suscnc.com/blog/seisekisho-inspection-report-japanese-buyers/What a seisekisho inspection report contains, how it differs from a mill sheet, what Japanese buyers check on it and how to ask for one with a stainless order.Fri, 16 Oct 2026 00:00:00 GMThttps://suscnc.com/blog/jis-g-4303-stainless-bar-sizes-tolerance/https://suscnc.com/blog/jis-g-4303-stainless-bar-sizes-tolerance/JIS G 4303 stainless bar for machined parts: hot rolled, peeled, drawn and ground tolerances, stock sizes, heat treatment condition and stock removal planning.Thu, 15 Oct 2026 00:00:00 GMThttps://suscnc.com/blog/jis-b0401-fits-h7-g6-tolerance-tables/https://suscnc.com/blog/jis-b0401-fits-h7-g6-tolerance-tables/Read H7, g6, k6 and p6 callouts from JIS B 0401 on a drawing: the micrometre limits for a 20 mm fit, how stainless changes the result and what to confirm.Wed, 14 Oct 2026 00:00:00 GMThttps://suscnc.com/blog/jis-b0021-geometric-tolerance-symbols/https://suscnc.com/blog/jis-b0021-geometric-tolerance-symbols/How to read the JIS B 0021 geometric tolerance symbols and frames on a drawing, what each one asks a shop to measure, and where stainless parts struggle.Tue, 13 Oct 2026 00:00:00 GMThttps://suscnc.com/blog/japanese-drawing-notes-translation/https://suscnc.com/blog/japanese-drawing-notes-translation/Common Japanese drawing notes with reading, meaning and what a machining shop does for each, from tolerance and edge notes to passivation and inspection.Mon, 12 Oct 2026 00:00:00 GMThttps://suscnc.com/blog/itomen-c-chamfer-jis-drawings/https://suscnc.com/blog/itomen-c-chamfer-jis-drawings/What the itomen note and C0.5 style chamfers mean on a Japanese drawing, the edge size shops cut for each, how stainless burrs change the job and how to check.Sun, 11 Oct 2026 00:00:00 GMThttps://suscnc.com/blog/burr-free-note-kaeri-nashi-japanese-drawings/https://suscnc.com/blog/burr-free-note-kaeri-nashi-japanese-drawings/What kaeri nashi, bari nashi and the JIS B 0051 edge symbol mean on a drawing, how shops remove stainless burrs and how a burr-free edge is checked on delivery.Tue, 06 Oct 2026 00:00:00 GMThttps://suscnc.com/partners/guides/quoting-a-jis-drawing-profitably/https://suscnc.com/partners/guides/quoting-a-jis-drawing-profitably/The title block items that change a stainless quote, why shops outside Japan misprice JIS drawings, and how to quote SUS CNC so the first article does not eat the job.Fri, 25 Sep 2026 00:00:00 GMThttps://suscnc.com/partners/guides/reading-an-anonymous-rfq-preview/https://suscnc.com/partners/guides/reading-an-anonymous-rfq-preview/What arrives with a purchase order from SUS CNC, the six items that decide whether your shop should take the job, and the signals that mean you should tell our engineer no.Fri, 25 Sep 2026 00:00:00 GMThttps://suscnc.com/partners/guides/shop-capability-data-that-wins-matches/https://suscnc.com/partners/guides/shop-capability-data-that-wins-matches/What to put in your registration so our engineer places the right stainless orders with you, why honest limits win more work than broad claims, and what to leave out.Fri, 25 Sep 2026 00:00:00 GMThttps://suscnc.com/partners/guides/what-buyers-judge-a-machine-shop-on/https://suscnc.com/partners/guides/what-buyers-judge-a-machine-shop-on/Price decides fewer stainless jobs than shops think. The six things buyers, and the engineer placing work for them, really judge a shop on, and what each one costs you to get right.Fri, 25 Sep 2026 00:00:00 GMThttps://suscnc.com/partners/guides/why-stainless-quotes-go-wrong/https://suscnc.com/partners/guides/why-stainless-quotes-go-wrong/The seven assumptions that turn a profitable stainless job into a loss, what each one costs in real terms, and the check that prevents it before the number goes out.Fri, 25 Sep 2026 00:00:00 GMThttps://suscnc.com/blog/passivation-vs-electropolishing/https://suscnc.com/blog/passivation-vs-electropolishing/What each process removes, what each costs, how much material electropolishing takes off, and the service conditions that justify the more expensive option.Mon, 21 Sep 2026 00:00:00 GMThttps://suscnc.com/blog/stainless-machining-cost-drivers/https://suscnc.com/blog/stainless-machining-cost-drivers/Where the money goes on a machined stainless part, in order, and the changes that reduce it without touching the function of the component.Mon, 21 Sep 2026 00:00:00 GMThttps://suscnc.com/blog/sus304-machining-jis-drawings/https://suscnc.com/blog/sus304-machining-jis-drawings/What SUS304 costs to machine, how to read the JIS tolerance class and finish symbols on your drawing, and what a shop needs before it can quote the part firmly.Mon, 21 Sep 2026 00:00:00 GMThttps://suscnc.com/blog/passivation-of-machined-stainless-parts/https://suscnc.com/blog/passivation-of-machined-stainless-parts/Why machined stainless rusts without passivation, the difference between nitric and citric methods, and how to write the requirement so every shop quotes the same thing.Sun, 20 Sep 2026 00:00:00 GMThttps://suscnc.com/blog/stainless-machining-tolerances-what-shops-hold/https://suscnc.com/blog/stainless-machining-tolerances-what-shops-hold/Realistic tolerance bands for turned and milled stainless, what each band costs, where grinding becomes necessary, and how ISO fits translate to real numbers.Sat, 19 Sep 2026 00:00:00 GMThttps://suscnc.com/blog/deep-hole-drilling-and-tapping-stainless/https://suscnc.com/blog/deep-hole-drilling-and-tapping-stainless/How depth to diameter ratio changes the process and the price, why taps break in austenitic grades, and the drawing changes that avoid both problems.Fri, 18 Sep 2026 00:00:00 GMThttps://suscnc.com/blog/thin-wall-stainless-machining/https://suscnc.com/blog/thin-wall-stainless-machining/Realistic wall thickness limits for machined stainless, why thin sections distort and work harden, and the design changes that recover most of the cost.Thu, 17 Sep 2026 00:00:00 GMThttps://suscnc.com/blog/stainless-work-hardening-in-machining/https://suscnc.com/blog/stainless-work-hardening-in-machining/What happens when austenitic stainless work hardens under a tool, why a light finishing pass makes it worse, and what a buyer can change on the drawing to help.Wed, 16 Sep 2026 00:00:00 GMThttps://suscnc.com/blog/material-certificates-en-10204-vs-jis-mill-sheet/https://suscnc.com/blog/material-certificates-en-10204-vs-jis-mill-sheet/What each certificate type actually guarantees, why a 3.1 and a JIS mill sheet are not interchangeable, and how to write the requirement so it is met first time.Tue, 15 Sep 2026 00:00:00 GMThttps://suscnc.com/blog/jis-drawing-checklist-before-rfq/https://suscnc.com/blog/jis-drawing-checklist-before-rfq/Twelve checks that turn a vague enquiry into a firm quote: tolerance class, projection, finish symbols, thread class, certificate wording and the rest of the title block.Sun, 13 Sep 2026 00:00:00 GMThttps://suscnc.com/blog/jis-thread-callouts-metric-tolerance-class/https://suscnc.com/blog/jis-thread-callouts-metric-tolerance-class/Why M6 alone is not a thread specification, how JIS B 0205 and B 0209 work together, and which tolerance class to put on a stainless part that will be gauged.Fri, 11 Sep 2026 00:00:00 GMThttps://suscnc.com/blog/jis-surface-finish-symbols-ra-rz/https://suscnc.com/blog/jis-surface-finish-symbols-ra-rz/How to read the legacy triangle marks on older JIS drawings, how they map to Ra, and what each roughness level actually costs to produce on a stainless part.Wed, 09 Sep 2026 00:00:00 GMThttps://suscnc.com/blog/jis-b0405-b0419-general-tolerances/https://suscnc.com/blog/jis-b0405-b0419-general-tolerances/The full tolerance tables for classes f, m, c and v, what the geometrical classes H, K and L add, and why the title block letter changes the price of your part.Mon, 07 Sep 2026 00:00:00 GMThttps://suscnc.com/blog/sus430-vs-sus304-ferritic-stainless/https://suscnc.com/blog/sus430-vs-sus304-ferritic-stainless/Where SUS430 saves real money on a machined part, why it cuts more like carbon steel, and the three service conditions that rule it out immediately.Sat, 05 Sep 2026 00:00:00 GMThttps://suscnc.com/blog/sus440c-sus420j2-hardened-stainless-parts/https://suscnc.com/blog/sus440c-sus420j2-hardened-stainless-parts/How to sequence a hardened stainless part, what hardness each grade reaches, why J1 and J2 are not the same, and where grinding stops being optional.Thu, 03 Sep 2026 00:00:00 GMThttps://suscnc.com/blog/sus630-17-4ph-machining-guide/https://suscnc.com/blog/sus630-17-4ph-machining-guide/Which condition to machine SUS630 in, what each H temper gives you in hardness and strength, and why the order of operations decides whether the part holds size.Tue, 01 Sep 2026 00:00:00 GMThttps://suscnc.com/blog/sus316-vs-sus316l-for-machined-parts/https://suscnc.com/blog/sus316-vs-sus316l-for-machined-parts/What the L actually changes, when the low carbon grade is required and when it is wasted money, plus what both cost you on the machine compared with SUS304.Fri, 28 Aug 2026 00:00:00 GMThttps://suscnc.com/blog/machine-shop-japanese-drawing-standards/https://suscnc.com/blog/machine-shop-japanese-drawing-standards/How to tell whether a machine shop can genuinely read a JIS drawing, the six questions to ask before you send one, and the answers that should end the conversation.Mon, 24 Aug 2026 00:00:00 GMThttps://suscnc.com/blog/jis-aisi-stainless-equivalents/https://suscnc.com/blog/jis-aisi-stainless-equivalents/Cross reference between JIS SUS designations, AISI and ASTM types, EN numbers and UNS codes, with the places where the standards do not line up cleanly.Tue, 18 Aug 2026 00:00:00 GMThttps://suscnc.com/blog/sus303-vs-sus304-vs-sus316/https://suscnc.com/blog/sus303-vs-sus304-vs-sus316/The three austenitic grades buyers switch between, compared on corrosion resistance, machinability and what each one really costs once the part is finished.Wed, 12 Aug 2026 00:00:00 GMT