CNC Surface Grinding S136 Mold Steel is part of VT machining's grade-specific capability. S136 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 Surface Grinding Capability for S136 Mold Steel
- Mold-grade cleanliness
- Polishable to mirror finish
- Hardenable to 48–54 HRC
- Tolerance to ±0.005 mm
S136 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 S136 Mold Steel with CNC Surface Grinding
When grinding S136 Mold Steel, machinability is pre-hardened or machined-then-hardened; polishes to high finish for molds. Our process plan reflects this so the finished part holds its tolerances without distortion or poor finish.
Documented parameters for S136 Mold Steel mean predictable cycle times and stable, repeatable results.
Achievable Tolerances for CNC Surface Grinding S136 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.
Why S136 Mold Steel?
Customers select S136 Mold Steel for CNC Surface Grinding because it is mold-grade, polishable and hardenable. We handle grade verification and any required heat treatment or finishing.
CNC Surface Grinding Tolerances & Surface Finish
Ground S136 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.
Exact achievable figures depend on the alloy, the feature size and the part geometry. Tell us which dimensions are critical and we will advise feasibility up front.
Design Tips for CNC Surface Grinding S136 Mold Steel
Small design adjustments often cut cost and lead time. Allowing adequate grind stock, specifying realistic flatness over the true datum, and relieving corners help us hit tight tolerances on S136 Mold Steel efficiently. If you send your model early, we will return practical DFM feedback before you commit to production.
Secondary Operations & Finishing
Most S136 Mold Steel parts need some finishing, which we manage in-house or through vetted partners. Options include deburring and edge-breaking, heat treatment, surface grinding, polishing, and plating or anodising for corrosion resistance and appearance. Give us the finished-part requirement and we will sequence every operation correctly.
CNC Surface Grinding Quality & Inspection
Quality is built in, not inspected on. We monitor key features during the run and confirm them at final inspection, with CMM verification available for tight tolerances. We provide the inspection and traceability records your quality system requires.
Applications of CNC Surface Grinding S136 Mold Steel
S136 Mold Steel parts made this way are found throughout aerospace, medical, automotive, electronics and industrial equipment. Prototype, bridge and production volumes are all welcome.
How to Order CNC Surface Grinding S136 Mold Steel
Starting your project takes one email. Send your CAD or 2D drawing, the S136 Mold Steel grade and condition, the quantity and any finish or inspection requirements. We respond quickly with price, lead time and any DFM notes, in clear English.
Finishing Options for S136 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 Surface Grinding S136 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 S136 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.
S136 Mold Steel in Other Processes
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Send the drawing, the S136 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 Surface Grinding S136 Mold Steel?
We machine S136 Mold Steel across a broad size range; share your part envelope for confirmation.
Does CNC Surface Grinding S136 Mold Steel require dedicated tooling?
Most S136 Mold Steel grinding work uses standard cutting tools and CNC programs; dedicated fixtures are made only when geometry or volume requires them.
What is CNC Surface Grinding S136 Mold Steel and how is it done?
CNC Surface Grinding S136 Mold Steel refers to surface grinding produces flat, parallel faces with fine finish using a horizontal abrasive wheel. Applied to S136 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.
Can VT machining make custom S136 Mold Steel parts to my drawing?
Yes. S136 Mold Steel S136 Mold 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.