VT machining offers CNC Lathe Machining for 904L Stainless Steel (UNS N08904 / 1.4539), typically supplied annealed. Super-austenitic grade for sulfuric acid and seawater; very gummy to cut.
CNC Lathe Machining Notes for 904L Stainless Steel
On the lathe 904L Stainless Steel needs chip-breaker inserts and constant chip load to avoid long, stringy swarf.
For estimating, a 100 × 100 × 10 mm block of 904L Stainless Steel weighs about 0.80 kg.
Starting Parameters for CNC Lathe Machining 904L Stainless Steel
| Cutting speed (carbide) | 80-145 m/min |
|---|---|
| Feed | 0.08-0.25 mm/rev |
| Spindle speed, Ø25 mm bar | 1020-1850 rpm |
| Insert / tool class | ISO M — positive-rake PVD/CVD carbide |
| Coolant | Flood emulsion (8-10%) or high-pressure coolant |
| Max turning diameter | Ø350 mm (chuck work) |
Starting values for 904L Stainless Steel, Annealed; optimised on the first article.
Full material data for 904L Stainless Steel (UNS N08904 / 1.4539) is on the CNC Turning 904L Stainless Steel page.
More on CNC Lathe Machining Stainless Steel
Finishing options, quality documentation and general cnc lathe machining guidance for all stainless steel grades are on our CNC Lathe Machining Stainless Steel page.
No drawing yet? Sketch the part in our free 3D + 2D builder and send it with your RFQ.
Quoting CNC Lathe Machining 904L Stainless Steel
Send a STEP/IGES model or PDF drawing, confirm 904L Stainless Steel and its condition (we usually see it supplied annealed), the quantity, critical tolerances and any finish or certificate requirements.
904L Stainless Steel in Other Processes
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Send the drawing, the 904L Stainless Steel condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
Does CNC Lathe Machining 904L Stainless Steel require dedicated tooling?
Most 904L Stainless Steel turning work uses standard cutting tools and CNC programs; dedicated fixtures are made only when geometry or volume requires them.
What material thickness or size range suits CNC Lathe Machining 904L Stainless Steel?
Turned 904L Stainless Steel parts are produced from bar or chuck stock across a wide diameter range.
What is the typical lead time and minimum order for CNC Lathe Machining 904L Stainless Steel?
CNC Lathe Machining prototypes for 904L Stainless Steel can be produced quickly and scaled to series production. Send your drawing and quantity and we will advise lead time and any minimum order.
Can VT machining make custom 904L Stainless Steel parts to my drawing?
Yes. 904L Stainless Steel turning is made to order from your CAD/2D drawing. Share your geometry, material grade, tolerance and quantity and we will confirm feasibility, lead time and pricing.