VT machining specialises in CNC Thread Grinding M42 High Speed Steel. Because M42 High Speed Steel is red-hard and highly wear-resistant, and its machinability is difficult; rigid setups and carbide tooling required, we plan each job around the grade to protect accuracy and surface quality.
CNC Thread Grinding Capability for M42 High Speed Steel
- High red-hardness
- Excellent wear resistance
- Hardenable to 62–67 HRC
- Used for cutting tools
M42 High Speed 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 M42 High Speed Steel with CNC Thread Grinding
The machinability of M42 High Speed Steel is difficult; rigid setups and carbide tooling required. For CNC Thread Grinding we select tooling, feeds, speeds and coolant to match, keeping the M42 High Speed Steel workpiece stable and the result accurate.
Because we machine M42 High Speed Steel regularly, proven settings shorten setup and keep quality repeatable across reorders.
Achievable Tolerances for CNC Thread Grinding M42 High Speed 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 Thread Grinding Tolerances & Surface Finish
Ground M42 High Speed 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 M42 High Speed Steel?
Specifying M42 High Speed Steel for CNC Thread Grinding M42 High Speed Steel is usually about its properties: red-hard and highly wear-resistant. Tell us the condition you need and we machine to it.
Secondary Operations & Finishing
We complete M42 High Speed 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.
Design Tips for CNC Thread Grinding M42 High Speed 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 M42 High Speed Steel efficiently. If you send your model early, we will return practical DFM feedback before you commit to production.
CNC Thread Grinding Quality & Inspection
Consistent quality comes from disciplined process control. Critical dimensions on M42 High Speed 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.
Applications of CNC Thread Grinding M42 High Speed Steel
CNC Thread Grinding of M42 High Speed 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 Thread Grinding M42 High Speed Steel
Ordering M42 High Speed 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 M42 High Speed 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 Thread Grinding M42 High Speed 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 M42 High Speed 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.
M42 High Speed Steel in Other Processes
Related
Send the drawing, the M42 High Speed Steel condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
Why is M42 High Speed Steel a good choice for CNC Thread Grinding?
M42 High Speed Steel is red-hard and highly wear-resistant, which makes it well suited to CNC Thread Grinding. We tune the process to the alloy so the finished M42 High Speed Steel grinding part meets your dimensional and functional requirements.
What is the typical lead time and minimum order for CNC Thread Grinding M42 High Speed Steel?
CNC Thread Grinding prototypes for M42 High Speed 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.
What is CNC Thread Grinding M42 High Speed Steel and how is it done?
CNC Thread Grinding M42 High Speed Steel refers to thread grinding produces precise, high-finish threads on hardened parts and lead screws. Applied to M42 High Speed Steel — red-hard and highly wear-resistant — VT machining produces each part to your CAD drawing, selecting parameters from your tolerance, finish and quantity requirements.
Does CNC Thread Grinding M42 High Speed Steel require dedicated tooling?
Most M42 High Speed Steel grinding work uses standard cutting tools and CNC programs; dedicated fixtures are made only when geometry or volume requires them.
How clean are the edges produced by CNC Thread Grinding on M42 High Speed Steel?
Machined M42 High Speed Steel edges are clean and to specification; edge-break or deburring is added when your drawing calls for it.
Can VT machining make custom M42 High Speed Steel parts to my drawing?
Yes. M42 High Speed Steel M42 High Speed 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.