CNC Waterjet Cutting 20CrMnTi Steel from VT machining delivers precision 20CrMnTi Steel parts made to your exact drawing. Abrasive waterjet cutting erodes metal with a high-pressure abrasive stream, with no heat-affected zone, with parameters tuned to 20CrMnTi Steel, which is strong, economical and widely available.
CNC Waterjet Cutting Capability for 20CrMnTi Steel
- Carbon/low-alloy grades
- Economical & weldable
- Tolerance to ±0.02 mm
- Hardenable by heat treat
20CrMnTi Steel Material Data
| Density | 7.85 g/cm³ |
|---|---|
| Tensile strength | 585 MPa |
| Yield strength (0.2%) | 450 MPa |
| Hardness | 170 HB |
| Melting point | 1420–1460 °C |
| Thermal conductivity | 51.9 W/m·K |
| Thermal expansion | 11.5 ×10⁻⁶/K |
| Electrical conductivity | 9% |
| Machinability (C36000 = 100%) | 57% |
| Grades we run | 1018, 1045, 1215, A36, S45C, St37, 4140 (see alloy steel) |
Published typical values for 1045. Other grades in the family differ — the certificate supplied with your order carries the actual heat-lot figures.
Rust. Bare steel flash-rusts within hours in a humid container, so parts are oiled or passivated before packing unless you specify otherwise.
Machining 20CrMnTi Steel with CNC Waterjet Cutting
20CrMnTi Steel behaves predictably under CNC Waterjet Cutting once parameters are dialled in: machinability is good to excellent depending on carbon content; free-machining grades cut cleanly, and we tune the operation accordingly.
We hold reference parameters for this grade, so repeat orders of 20CrMnTi Steel run consistently from one batch to the next.
Achievable Tolerances for CNC Waterjet Cutting 20CrMnTi Steel
| Feature | Standard | Precision |
|---|---|---|
| Contour dimension | ±0.10 mm | ±0.05 mm |
| Hole diameter | ±0.10 mm | ±0.05 mm |
| Kerf width | 0.20 mm | 0.10 mm |
| Squareness of cut edge | 0.5° | 0.2° |
| Heat-affected zone | 0.15 mm | 0.05 mm (N₂ assist) |
| Minimum hole diameter | 1.2 × thickness | 1.0 × thickness |
| Edge condition | light dross | burr-free, N₂ cut |
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 20CrMnTi Steel?
20CrMnTi Steel is chosen when a part needs what this grade offers — it is strong, economical and widely available. We confirm the grade and any temper or heat-treat condition with you before machining.
CNC Waterjet Cutting Quality & Inspection
We control quality throughout the process, not just at the end. In-process checks plus final inspection — including CMM where specified — keep every 20CrMnTi Steel part to print. Inspection reports, material certificates and first-article documentation can be supplied on request.
CNC Waterjet Cutting Tolerances & Surface Finish
Laser-cut 20CrMnTi Steel holds contour tolerances around ±0.05 mm depending on thickness, with a narrow kerf and a clean, near burr-free edge.
Final tolerances are governed by the material's behaviour, wall thickness and overall stiffness. We give honest DFM feedback if a callout would be costly or better achieved another way.
Design Tips for CNC Waterjet Cutting 20CrMnTi Steel
We are happy to suggest design tweaks that improve manufacturability. Keeping holes no smaller than the material thickness, allowing for kerf, and grouping features sensibly improves edge quality and nesting yield on 20CrMnTi Steel. If you send your model early, we will return practical DFM feedback before you commit to production.
Secondary Operations & Finishing
Finished 20CrMnTi Steel parts can move straight into secondary operations under one roof. Typical add-ons are deburring, passivation, anodising, plating, blasting, polishing and laser marking. We coordinate the whole chain so you receive complete, inspection-ready parts.
Applications of CNC Waterjet Cutting 20CrMnTi Steel
Customers order CNC Waterjet Cutting 20CrMnTi Steel components for everything from instrumentation to structural and functional assemblies. Whether you need a single prototype or recurring production volume, the same process discipline applies.
How to Order CNC Waterjet Cutting 20CrMnTi Steel
Getting a quote is simple. Share your model, the material grade, your quantity and target tolerances. You receive a clear quotation with lead time and honest manufacturability feedback.
Finishing Options for 20CrMnTi Steel
| Finish | Thickness / effect | Why it gets specified |
|---|---|---|
| Black oxide | 1–2 µm | Mild corrosion resistance, no dimensional change |
| Zinc plate + clear/yellow | 5–12 µm | ASTM B633, general corrosion protection |
| Nickel plate (electroless) | 10–25 µm | Uniform in bores, 500 HV after bake |
| Phosphate | 5–10 µm | Paint key, mild lubricity |
| Powder coat | 60–120 µm | RAL colours |
| 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 Waterjet Cutting 20CrMnTi 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 20CrMnTi 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.
20CrMnTi Steel in Other Processes
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Send the drawing, the 20CrMnTi Steel condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
What tolerances can you hold for CNC Waterjet Cutting 20CrMnTi Steel?
Achievable tolerances for 20CrMnTi Steel cutting depend on the alloy, geometry and feature size. Laser cutting holds contour tolerances to around ±0.05 mm depending on thickness. Exact figures are confirmed against your drawing callouts.
How clean are the edges produced by CNC Waterjet Cutting on 20CrMnTi Steel?
Laser cutting leaves 20CrMnTi Steel with a narrow kerf and a clean, near burr-free edge and only a small heat-affected zone.
Does CNC Waterjet Cutting 20CrMnTi Steel require dedicated tooling?
Most 20CrMnTi Steel cutting work uses standard cutting tools and CNC programs; dedicated fixtures are made only when geometry or volume requires them.
What surface finish is achievable on 20CrMnTi Steel with CNC Waterjet Cutting?
Laser cutting leaves a clean cut face on 20CrMnTi Steel with a small heat-affected zone; most parts need little secondary finishing.
What material thickness or size range suits CNC Waterjet Cutting 20CrMnTi Steel?
Laser-cut 20CrMnTi Steel thickness depends on the alloy and its reflectivity; we tune the fiber source and assist gas accordingly.