VT machining offers CNC Sinker EDM for S355JR Steel (EN 10025 / 1.0045 / ~Q345B), typically supplied hot-rolled. Higher-strength structural steel, yield ≥355 MPa.
CNC Sinker EDM Notes for S355JR Steel
Cavities and blind forms in S355JR Steel are sunk with graphite or copper electrodes.
Process Data for CNC Sinker EDM S355JR Steel
| Electrode | Graphite (roughing) / copper (fine finish) |
|---|---|
| Relative removal rate | High (vs tool steel = medium) |
| Best finish | VDI 12-18 (Ra 0.4-0.8 µm) |
Typical values for S355JR Steel, Hot-rolled; confirmed on the first part.
Full material data for S355JR Steel (EN 10025 / 1.0045 / ~Q345B) is on the CNC Wire EDM S355JR Steel page.
More on CNC Sinker EDM Steel
Finishing options, quality documentation and general cnc sinker edm guidance for all steel grades are on our CNC Sinker EDM Steel page.
No drawing yet? Sketch the part in our free 3D + 2D builder and send it with your RFQ.
Quoting CNC Sinker EDM S355JR Steel
Send a STEP/IGES model or PDF drawing, confirm S355JR Steel and its condition (we usually see it supplied hot-rolled), the quantity, critical tolerances and any finish or certificate requirements.
S355JR Steel in Other Processes
Related
Send the drawing, the S355JR Steel condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
Can you EDM-machine hardened S355JR Steel?
Yes. EDM removes material by electrical discharge rather than cutting force, so hardened and difficult S355JR Steel can be machined to fine detail and tight tolerance without distortion.
Why is S355JR Steel a good choice for CNC Sinker EDM?
S355JR Steel is strong, economical and widely available, which makes it well suited to CNC Sinker EDM. We tune the process to the alloy so the finished S355JR Steel EDM machining part meets your dimensional and functional requirements.
Can VT machining make custom S355JR Steel parts to my drawing?
Yes. S355JR Steel EDM 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.
What is CNC Sinker EDM S355JR Steel and how is it done?
CNC Sinker EDM S355JR Steel refers to sinker (die-sink) EDM burns a shaped electrode into metal to form precise cavities and blind features. Applied to S355JR Steel — strong, economical and widely available — VT machining produces each part to your CAD drawing, selecting parameters from your tolerance, finish and quantity requirements.
What tolerances can you hold for CNC Sinker EDM S355JR Steel?
Achievable tolerances for S355JR Steel EDM machining depend on the alloy, geometry and feature size. EDM holds tolerances to around ±0.002 mm with no cutting force on the part. Exact figures are confirmed against your drawing callouts.
What surface finish is achievable on S355JR Steel with CNC Sinker EDM?
Surface finish on S355JR Steel is controlled to your specification; we confirm the achievable Ra against your callout.