VT machining offers CNC Turning for 202 Stainless Steel (UNS S20200 / 1.4373), typically supplied annealed. Slightly more Ni than 201, so better formability; still below 304 in corrosion resistance.
CNC Turning Notes for 202 Stainless Steel
On the lathe 202 Stainless Steel needs chip-breaker inserts and constant chip load to avoid long, stringy swarf.
For estimating, a 100 × 100 × 10 mm block of 202 Stainless Steel weighs about 0.78 kg.
Starting Parameters for CNC Turning 202 Stainless Steel
| Cutting speed (carbide) | 105-195 m/min |
|---|---|
| Feed | 0.08-0.25 mm/rev |
| Spindle speed, Ø25 mm bar | 1340-2480 rpm |
| Insert / tool class | ISO M — positive-rake PVD/CVD carbide |
| Coolant | Flood emulsion (8-10%) or high-pressure coolant |
Starting values for 202 Stainless Steel, Annealed; optimised on the first article.
202 Stainless Steel Data Relevant to CNC Turning
| Equivalent designations | UNS S20200 / 1.4373 |
|---|---|
| Key composition | Cr 17-19%, Ni 4-6%, Mn 7.5-10% |
| Typical supply condition | Annealed |
| Hardness (typical) | ≤95 HRB |
| Machinability rating | 40% (AISI B1112 = 100%) |
Typical values; we work to your drawing and mill certificate.
How 202 Stainless Steel Differs
Slightly more Ni than 201, so better formability; still below 304 in corrosion resistance.
Typical applications: Kitchen equipment, automotive trim.
202 Stainless Steel vs Similar Grades
| 202 Stainless Steel | 201 Stainless Steel | 301 Stainless Steel | T301 Stainless Steel | |
|---|---|---|---|---|
| Key composition | Cr 17-19%, Ni 4-6%, Mn 7.5-10% | Cr 16-18%, Ni 3.5-5.5%, Mn 5.5-7.5% | Cr 16-18%, Ni 6-8% | Cr 16-18%, Ni 6-8% |
| Hardness | ≤95 HRB | ≤95 HRB | Up to ~45 HRC (full hard) | ~40-50 HRC by temper |
| Tensile (MPa) | ≥620 | ≥515 | 515-1300 by temper | 930-1800 |
| Machinability % | 40 | 40 | 40 | 35 |
| Typical use | Kitchen equipment, automotive trim | Appliance trim, sinks, cookware, decorative hardware | Springs, clips, stamped brackets, conveyor belts | Precision springs, shims, etched flat parts |
More on CNC Turning Stainless Steel
Finishing options, quality documentation and general cnc turning guidance for all stainless steel grades are on our CNC Turning Stainless Steel page.
No drawing yet? Sketch the part in our free 3D + 2D builder and send it with your RFQ.
Quoting CNC Turning 202 Stainless Steel
Send a STEP/IGES model or PDF drawing, confirm 202 Stainless Steel and its condition (we usually see it supplied annealed), the quantity, critical tolerances and any finish or certificate requirements.
202 Stainless Steel in Other Processes
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Send the drawing, the 202 Stainless Steel condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
Which industries use CNC Turning 202 Stainless Steel parts?
CNC Turning 202 Stainless Steel parts are used across aerospace, medical, automotive, electronics, semiconductor and general industrial sectors — anywhere precise 202 Stainless Steel components are required.
Does CNC Turning 202 Stainless Steel require dedicated tooling?
Most 202 Stainless Steel turning work uses standard cutting tools and CNC programs; dedicated fixtures are made only when geometry or volume requires them.
What material thickness or size range suits CNC Turning 202 Stainless Steel?
Turned 202 Stainless Steel parts are produced from bar or chuck stock across a wide diameter range.
What tolerances can you hold for CNC Turning 202 Stainless Steel?
Achievable tolerances for 202 Stainless Steel turning depend on the alloy, geometry and feature size. Turning holds diameter tolerances to around ±0.005 mm with concentricity within 0.01 mm. Exact figures are confirmed against your drawing callouts.