CNC Cylindrical Grinding P20 Mold Steel is part of VT machining's grade-specific capability. P20 Mold Steel is mold-grade, polishable and hardenable, and we combine controlled grinding with material-aware setup to produce parts that meet your specification.
CNC Cylindrical Grinding Capability for P20 Mold Steel
- Mold-grade cleanliness
- Polishable to mirror finish
- Hardenable to 48–54 HRC
- Tolerance to ±0.005 mm
P20 Mold Steel Material Data
| Density | 14.5 g/cm³ |
|---|---|
| Tensile strength | 2000–3500 (TRS) MPa |
| Yield strength (0.2%) | — |
| Hardness | 88–93 HRA / 1300–1800 HV |
| Melting point | 2870 (WC) °C |
| Thermal conductivity | 70–100 W/m·K |
| Thermal expansion | 5.0 ×10⁻⁶/K |
| Electrical conductivity | 10% |
| Machinability (C36000 = 100%) | grind / EDM only |
| Grades we run | YG6, YG8, YG15 (K10–K30), D2, H13, M2, SKD11 |
Published typical values for WC-Co (YG8 / K20). Other grades in the family differ — the certificate supplied with your order carries the actual heat-lot figures.
Everything is done by grinding, wire EDM or sinker EDM. Design in a small corner radius wherever possible — a true sharp internal corner doubles the EDM time.
Machining P20 Mold Steel with CNC Cylindrical Grinding
The machinability of P20 Mold Steel is pre-hardened or machined-then-hardened; polishes to high finish for molds. For CNC Cylindrical Grinding we select tooling, feeds, speeds and coolant to match, keeping the P20 Mold Steel workpiece stable and the result accurate.
Because we machine P20 Mold Steel regularly, proven settings shorten setup and keep quality repeatable across reorders.
Achievable Tolerances for CNC Cylindrical Grinding P20 Mold Steel
| Feature | Standard | Precision |
|---|---|---|
| Size (OD, ID, thickness) | ±0.005 mm | ±0.002 mm |
| Flatness over 100 mm | 0.010 mm | 0.003 mm |
| Parallelism | 0.010 mm | 0.003 mm |
| Roundness | 0.005 mm | 0.002 mm |
| Squareness | 0.010 mm | 0.005 mm |
| Surface finish | Ra 0.4 µm | Ra 0.1 µm |
| Workpiece hardness | up to 62 HRC | up to 65 HRC |
Standard is what a normal quotation assumes. Precision is available on nominated features and is priced separately, because it needs extra setups, in-process gauging and CMM verification. Call out only the features that need it — blanket-tightening a drawing is the single most common reason a quote comes back expensive.
CNC Cylindrical Grinding Quality & Inspection
Consistent quality comes from disciplined process control. Critical dimensions on P20 Mold Steel parts are checked in-process and verified at final inspection using calibrated instruments and, where required, CMM measurement. Full documentation — dimensional reports, mill certs, FAIR — is available when your programme needs it.
Design Tips for CNC Cylindrical Grinding P20 Mold Steel
A few design choices make a real difference to cost and quality. Allowing adequate grind stock, specifying realistic flatness over the true datum, and relieving corners help us hit tight tolerances on P20 Mold Steel efficiently. If you send your model early, we will return practical DFM feedback before you commit to production.
CNC Cylindrical Grinding Tolerances & Surface Finish
Ground P20 Mold Steel reaches single-micron tolerances on size, flatness and parallelism, with surface finishes down to Ra 0.1–0.4 µm — and a near-mirror finish on suitable alloys.
The tightest tolerances are reserved for the features your drawing flags as critical. Share your tolerance scheme and we will confirm what is realistic before quoting.
Why P20 Mold Steel?
Specifying P20 Mold Steel for CNC Cylindrical Grinding P20 Mold Steel is usually about its properties: mold-grade, polishable and hardenable. Tell us the condition you need and we machine to it.
Secondary Operations & Finishing
We complete P20 Mold Steel components with the secondary steps your drawing calls for. We arrange heat treatment, surface treatment, marking and assembly as needed. Tell us the final spec and we will plan the full route so parts arrive ready to use.
Applications of CNC Cylindrical Grinding P20 Mold Steel
CNC Cylindrical Grinding of P20 Mold Steel supports parts across aerospace, medical, automotive, electronics, semiconductor, energy and general industrial sectors. We scale from one-off prototypes to ongoing production while holding the same quality.
How to Order CNC Cylindrical Grinding P20 Mold Steel
Ordering P20 Mold Steel parts is straightforward. Provide the drawing, material, quantity and any certification needs. Our engineers reply — in English — with feasibility, pricing and a realistic lead time, usually within one business day.
Finishing Options for P20 Mold Steel
| Finish | Thickness / effect | Why it gets specified |
|---|---|---|
| Deburr / edge break | 0.05–0.3 mm | All parts unless the drawing says otherwise |
| Bead blast | Ra 1.6–3.2 µm | Uniform matt finish, hides tool marks |
| Laser marking | — | Part number, lot code, data matrix |
No drawing yet? Build one in the browser.
Set the metal, dimensions and features, watch the 3D model update as you type, then switch to the 2D sheet to add dimensions and tolerances. Download it or send it straight to us with your RFQ.
What We Need to Quote CNC Cylindrical Grinding P20 Mold Steel
- GeometrySTEP or IGES for the 3D model, plus a PDF drawing if you have tolerance callouts. A dimensioned sketch is enough to start.
- MaterialThe exact P20 Mold Steel grade and condition — temper, heat-treat state or hardness. If you are not sure, tell us the function and we will suggest one.
- QuantityPrototype count and the expected annual volume. Both change how the part is made and therefore what it costs.
- TolerancesWhich features are critical. Everything else runs to our standard tolerance, which is what keeps the price sensible.
- FinishSurface treatment, cosmetic requirements, and any faces that must be masked.
- DocumentsWhether you need a material certificate, dimensional report, FAIR or PPAP with the shipment.
Missing something from the list is not a problem — send what you have. We will come back with the specific questions rather than a generic form.
P20 Mold Steel in Other Processes
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Send the drawing, the P20 Mold Steel condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
What material thickness or size range suits CNC Cylindrical Grinding P20 Mold Steel?
We machine P20 Mold Steel across a broad size range; share your part envelope for confirmation.
Why is P20 Mold Steel a good choice for CNC Cylindrical Grinding?
P20 Mold Steel is mold-grade, polishable and hardenable, which makes it well suited to CNC Cylindrical Grinding. We tune the process to the alloy so the finished P20 Mold Steel grinding part meets your dimensional and functional requirements.
What is CNC Cylindrical Grinding P20 Mold Steel and how is it done?
CNC Cylindrical Grinding P20 Mold Steel refers to cylindrical grinding finishes outer diameters of rotational parts to precise size and roundness. Applied to P20 Mold Steel — mold-grade, polishable and hardenable — VT machining produces each part to your CAD drawing, selecting parameters from your tolerance, finish and quantity requirements.
What surface finish is achievable on P20 Mold Steel with CNC Cylindrical Grinding?
Grinding can take P20 Mold Steel to a fine finish — typically Ra 0.1–0.4 µm, and to a mirror grade on suitable alloys.
How clean are the edges produced by CNC Cylindrical Grinding on P20 Mold Steel?
Machined P20 Mold Steel edges are clean and to specification; edge-break or deburring is added when your drawing calls for it.
What is the typical lead time and minimum order for CNC Cylindrical Grinding P20 Mold Steel?
CNC Cylindrical Grinding prototypes for P20 Mold 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.