VT machining provides CNC Plasma Cutting Stainless Steel for customers who need accurate, repeatable Stainless Steel components. Because Stainless Steel is corrosion resistant, strong, hygienic (304/316 grades), we adapt the process to suit — controlling the variables that matter for this alloy.
CNC Plasma Cutting Capability for Stainless Steel
- Plate to 30+ mm
- High cutting speed
- Conductive metals
- Bevel-cut capable
Stainless Steel Material Data
| Density | 8.00 g/cm³ |
|---|---|
| Tensile strength | 515 MPa |
| Yield strength (0.2%) | 205 MPa |
| Hardness | 170 HB |
| Melting point | 1400–1450 °C |
| Thermal conductivity | 16.2 W/m·K |
| Thermal expansion | 17.3 ×10⁻⁶/K |
| Electrical conductivity | 2.4% |
| Machinability (C36000 = 100%) | 45% |
| Grades we run | 303, 304/304L, 316/316L, 321, 410, 416, 420, 17-4PH, 2205 duplex |
Published typical values for 304. Other grades in the family differ — the certificate supplied with your order carries the actual heat-lot figures.
It work-hardens the moment a tool dwells. Constant feed and positive-rake tooling; a rubbing pass leaves a glazed skin the next tool cannot get through.
How CNC Plasma Cutting Stainless Steel Works
A focused fibre-laser beam melts and blows material from the Stainless Steel sheet along the programmed contour. Power, focal position, nozzle stand-off and assist-gas pressure are tuned to the alloy and thickness for a clean, square edge.
Programming is driven directly by your 3D model or print. Work-holding, tool selection and the cutting strategy are planned around the critical features and the material before the first chip is cut. First-off inspection confirms the process is centred before production continues.
Achievable Tolerances for CNC Plasma Cutting Stainless 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.
Secondary Operations & Finishing
Finished Stainless 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.
Working with Stainless Steel
As a material, Stainless Steel is corrosion resistant, strong, hygienic (304/316 grades). Our setup reflects the alloy's machinability so the finished part is accurate and free of avoidable defects.
We verify the exact grade and condition before machining, and traceable mill certs are available on request. We can work to your nominated material source or specification when required.
CNC Plasma 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 Stainless Steel part to print. Inspection reports, material certificates and first-article documentation can be supplied on request.
Design Tips for CNC Plasma Cutting Stainless 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 Stainless Steel. If you send your model early, we will return practical DFM feedback before you commit to production.
CNC Plasma Cutting Tolerances & Surface Finish
Laser-cut Stainless Steel holds contour tolerances around ±0.05 mm depending on thickness, with a narrow kerf and a clean, near burr-free edge.
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.
Applications of CNC Plasma Cutting Stainless Steel
Customers order CNC Plasma Cutting Stainless 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 Plasma Cutting Stainless 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.
Parts We Have Run in Stainless Steel
Three representative CNC Plasma Cutting Stainless Steel jobs, with the callouts that actually drove the process plan. Yours will differ — these are here so you can judge whether your part is in our range before you spend time on an RFQ.
Battery busbar
- Material
- Stainless Steel
- Size
- 180 × 30 × 2 mm
- Key callouts
- Contour ±0.08 mm, hole ±0.05 mm
- Batch
- 2,000 pcs
Copper is cut on the fibre laser with a reflective-material head; not every shop can run it.
EMI shield can
- Material
- Stainless Steel
- Size
- 60 × 45 × 0.3 mm
- Key callouts
- Contour ±0.05 mm, tab width 0.5 mm
- Batch
- 5,000 pcs
Nested 96-up per sheet; nesting is where the cost comes out of a part this small.
Control panel face
- Material
- Stainless Steel
- Size
- 400 × 300 × 1.5 mm
- Key callouts
- Cutout position ±0.10 mm, no dross on visible face
- Batch
- 600 pcs
Cut with nitrogen so the edge takes powder coat without secondary grinding.
Finishing Options for Stainless Steel
| Finish | Thickness / effect | Why it gets specified |
|---|---|---|
| Citric passivation | — | ASTM A967 / AMS 2700, removes free iron |
| Electropolish | 5–25 µm removed | Ra improves by roughly half, hygienic surface |
| Brushed / grained | Ra 0.4–1.6 µm | No. 4 finish, directional |
| PVD coating | 2–5 µm | TiN, TiCN for wear surfaces |
| 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 Plasma Cutting Stainless 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 Stainless 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.
Other Metals for CNC Plasma Cutting
Other Processes for Stainless Steel
Send the drawing, the Stainless Steel grade and the quantity. You get pricing, lead time and any DFM notes back — usually within one business day.
Request a QuoteFrequently Asked Questions
What is CNC Plasma Cutting Stainless Steel and how is it done?
CNC Plasma Cutting Stainless Steel refers to cNC plasma cutting uses an ionized gas jet to sever thicker conductive plate at high speed. Applied to Stainless Steel — corrosion resistant, strong, hygienic (304/316 grades) — VT machining produces each part to your CAD drawing, selecting parameters from your tolerance, finish and quantity requirements.
What is the typical lead time and minimum order for CNC Plasma Cutting Stainless Steel?
CNC Plasma Cutting prototypes for Stainless 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.
How clean are the edges produced by CNC Plasma Cutting on Stainless Steel?
Laser cutting leaves Stainless Steel with a narrow kerf and a clean, near burr-free edge and only a small heat-affected zone.
Does CNC Plasma Cutting Stainless Steel require dedicated tooling?
Most Stainless Steel cutting work uses standard cutting tools and CNC programs; dedicated fixtures are made only when geometry or volume requires them.
Why is Stainless Steel a good choice for CNC Plasma Cutting?
Stainless Steel is corrosion resistant, strong, hygienic (304/316 grades), which makes it well suited to CNC Plasma Cutting. We tune the process to the alloy so the finished Stainless Steel cutting part meets your dimensional and functional requirements.