Stainless Machining Guides for Buyers
Written for engineers and buyers who have a stainless part to make and want to know what to ask before the quotes come back.
Materials
Which grade belongs on the drawing, and what each one costs you in the machine.
- 17-4 ph machining
17-4 PH Stainless Machining: Conditions and Ageing
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.
- 2205 duplex machining
Machining 2205 Duplex Stainless: When 316L Falls Short
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.
- 303 vs 304 vs 316l
303 vs 304 vs 316L Stainless: Machining and Corrosion
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.
- 316 vs 316l
316 vs 316L vs 316Ti: Which One to Put on the Print
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.
- 440c machining
410, 416, 420 and 440C: Hardenable Stainless Grades
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.
- nitronic 60 machining
Nitronic 60 and Galling: The Stainless That Will Not Seize
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.
- food grade stainless machining
Stainless for Food Contact: Grades, Finish and Standards
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.
- stainless steel cnc machining
Stainless Steel CNC Machining: Grades, Cost, Finish
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.
Process
What happens to a stainless part between the bar and the box, and what to specify.
- citric vs nitric passivation
Citric vs Nitric Passivation: Which to Put on the Print
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.
- stainless weldment machining
Machining Stainless Weldments: Order, Heat and Decay
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.
- passivation vs electropolishing
Passivation vs Electropolishing for Stainless Parts
What passivation actually removes, what electropolishing adds, which standards to name on the drawing and when a medical or food part needs both processes.
- stainless surface finish ra
Surface Finish on Stainless: An Ra Guide for Buyers
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.
- tapping stainless steel
Threading Stainless: Tapping, Thread Milling and Galling
Broken taps, galled fasteners and stripped threads are the common stainless failures. How thread depth, pitch, method and grade decide whether yours work.
- stainless work hardening machining
Work Hardening: Why Stainless Quotes Come Back High
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.
Cost
Where the money goes in a stainless quote and which levers are yours to pull.
- cnc machining quantity cost
Prototype or Production: Stainless Quantity Economics
Setup, fixturing and first article dominate small stainless batches. Where the cost curve flattens, and how to order prototypes without paying twice later.
- stainless steel machining cost
Stainless Machining Cost: What Actually Drives Price
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.
- cnc machining tolerances stainless
Stainless Tolerances: What Each Decimal Place Costs
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.
Choosing a Supplier
How to write an RFQ that gets comparable quotes and how to judge the shops that answer.
- iso 13485 machining
ISO 13485 or ISO 9001 for Machined Stainless 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.
- how to choose a cnc machine shop
How to Vet a Stainless Machine Shop Before You Order
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.
- stainless machining rfq
What to Put in a Stainless RFQ So Quotes Are Comparable
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.
For Shops
Written for the machine shops on the other side of the RFQ, about where work comes from and what it is worth.
- quoting cnc machining jobs
Quoting Stainless Work Without Losing Money on the Job
Stainless jobs lose money in predictable places: grade assumptions, finishing, certificates and work hardening. What to check before you price a stainless RFQ.
- cost per lead manufacturing
What a Machining Lead Is Actually Worth to Your Shop
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.
- cnc machining leads
Where CNC Machining Leads Come From, Channel by Channel
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.