VT machining offers CNC Reaming for 347 Stainless Steel (UNS S34700 / 1.4550), typically supplied annealed. Niobium-stabilised alternative to 321, better for welded high-temperature service.
CNC Reaming Notes for 347 Stainless Steel
347 Stainless Steel can rub and close up behind the reamer, so we leave a consistent stock allowance and keep the reamer cutting rather than burnishing.
For estimating, a 100 × 100 × 10 mm block of 347 Stainless Steel weighs about 0.80 kg.
Starting Parameters for CNC Reaming 347 Stainless Steel
| Cutting speed (carbide) | 25-45 m/min |
|---|---|
| Stock allowance on Ø10 mm | 0.15-0.25 mm |
| Feed | 0.12-0.4 mm/rev |
| Spindle speed, Ø10 mm | 800-1430 rpm |
| Insert / tool class | ISO M — positive-rake PVD/CVD carbide |
| Coolant | Flood emulsion (8-10%) or high-pressure coolant |
Starting values for 347 Stainless Steel, Annealed; optimised on the first article.
Full material data for 347 Stainless Steel (UNS S34700 / 1.4550) is on the CNC Milling 347 Stainless Steel page.
More on CNC Reaming Stainless Steel
Finishing options, quality documentation and general cnc reaming guidance for all stainless steel grades are on our CNC Reaming Stainless Steel page.
No drawing yet? Sketch the part in our free 3D + 2D builder and send it with your RFQ.
Quoting CNC Reaming 347 Stainless Steel
Send a STEP/IGES model or PDF drawing, confirm 347 Stainless Steel and its condition (we usually see it supplied annealed), the quantity, critical tolerances and any finish or certificate requirements.
347 Stainless Steel in Other Processes
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Send the drawing, the 347 Stainless Steel condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
What is the typical lead time and minimum order for CNC Reaming 347 Stainless Steel?
CNC Reaming prototypes for 347 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.
Does CNC Reaming 347 Stainless Steel require dedicated tooling?
Most 347 Stainless Steel machining work uses standard cutting tools and CNC programs; dedicated fixtures are made only when geometry or volume requires them.
What is CNC Reaming 347 Stainless Steel and how is it done?
CNC Reaming 347 Stainless Steel refers to reaming finishes drilled holes to a precise diameter and smooth surface in a single controlled pass. Applied to 347 Stainless Steel — corrosion resistant, strong and hygienic — VT machining produces each part to your CAD drawing, selecting parameters from your tolerance, finish and quantity requirements.
Can VT machining make custom 347 Stainless Steel parts to my drawing?
Yes. 347 Stainless Steel machining 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.