VT machining offers CNC Cylindrical Grinding for 630 Stainless Steel (UNS S17400 / 1.4542 (=17-4 PH)), typically supplied condition A or H900-H1150. AISI/ASTM designation of 17-4 PH; precipitation-hardened at low temperature with little distortion.
CNC Cylindrical Grinding Notes for 630 Stainless Steel
630 Stainless Steel is ground with aluminium-oxide or CBN wheels chosen for its hardness (~28-44 HRC by condition).
Process Data for CNC Cylindrical Grinding 630 Stainless Steel
| Wheel (supply condition) | Aluminium oxide (white/ceramic), soft grade |
|---|---|
| Depth per pass (rough / finish) | 0.01-0.03 / 0.002-0.005 mm |
| Achievable finish | Ra 0.2-0.4 µm |
| Typical size tolerance | Ø ±0.002 mm, roundness 0.001-0.002 mm |
| Diameter growth, Ø50 mm, +3 °C | 1.6 µm |
| Work speed | 15-30 m/min (between centres) |
Typical values for 630 Stainless Steel, Condition A or H900-H1150; confirmed on the first part.
Full material data for 630 Stainless Steel (UNS S17400 / 1.4542 (=17-4 PH)) is on the CNC Surface Grinding 630 Stainless Steel page.
More on CNC Cylindrical Grinding Stainless Steel
Finishing options, quality documentation and general cnc cylindrical grinding guidance for all stainless steel grades are on our CNC Cylindrical Grinding Stainless Steel page.
No drawing yet? Sketch the part in our free 3D + 2D builder and send it with your RFQ.
Quoting CNC Cylindrical Grinding 630 Stainless Steel
Send a STEP/IGES model or PDF drawing, confirm 630 Stainless Steel and its condition (we usually see it supplied condition A or H900-H1150), the quantity, critical tolerances and any finish or certificate requirements.
630 Stainless Steel in Other Processes
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Send the drawing, the 630 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 CNC Cylindrical Grinding 630 Stainless Steel and how is it done?
CNC Cylindrical Grinding 630 Stainless Steel refers to cylindrical grinding finishes outer diameters of rotational parts to precise size and roundness. Applied to 630 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.
What material thickness or size range suits CNC Cylindrical Grinding 630 Stainless Steel?
We machine 630 Stainless Steel across a broad size range; share your part envelope for confirmation.
What tolerances can you hold for CNC Cylindrical Grinding 630 Stainless Steel?
Achievable tolerances for 630 Stainless Steel grinding depend on the alloy, geometry and feature size. Grinding routinely holds single-micron tolerances on diameter, flatness and parallelism. Exact figures are confirmed against your drawing callouts.
What surface finish is achievable on 630 Stainless Steel with CNC Cylindrical Grinding?
Grinding can take 630 Stainless Steel to a fine finish — typically Ra 0.1–0.4 µm, and to a mirror grade on suitable alloys.
Does CNC Cylindrical Grinding 630 Stainless Steel require dedicated tooling?
Most 630 Stainless Steel grinding work uses standard cutting tools and CNC programs; dedicated fixtures are made only when geometry or volume requires them.
Can VT machining make custom 630 Stainless Steel parts to my drawing?
Yes. 630 Stainless Steel grinding 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.