VT machining offers CNC Turning for S235JR Steel (EN 10025 / 1.0038 / ~Q235B / ~A36), typically supplied hot-rolled. European base structural steel, yield ≥235 MPa.
CNC Turning Notes for S235JR Steel
S235JR Steel turns with good chip control at standard cutting data.
For estimating, a 100 × 100 × 10 mm block of S235JR Steel weighs about 0.79 kg.
Starting Parameters for CNC Turning S235JR Steel
| Cutting speed (carbide) | 200-350 m/min |
|---|---|
| Feed | 0.1-0.35 mm/rev |
| Spindle speed, Ø25 mm bar | 2550-4460 rpm |
| Insert / tool class | ISO P — CVD-coated carbide |
| Coolant | Emulsion (5-8%); dry is possible for interrupted cuts |
Starting values for S235JR Steel, Hot-rolled; optimised on the first article.
S235JR Steel Data Relevant to CNC Turning
| Equivalent designations | EN 10025 / 1.0038 / ~Q235B / ~A36 |
|---|---|
| Key composition | C ≤0.17-0.20%, Mn ≤1.4% |
| Typical supply condition | Hot-rolled |
| Hardness (typical) | ~120 HB |
| Machinability rating | 70% (AISI B1112 = 100%) |
Typical values; we work to your drawing and mill certificate.
How S235JR Steel Differs
European base structural steel, yield ≥235 MPa.
Typical applications: Frames, brackets, weldments.
S235JR Steel vs Similar Grades
| S235JR Steel | 12L14 Steel | S275JR Steel | 1215 Steel | |
|---|---|---|---|---|
| Key composition | C ≤0.17-0.20%, Mn ≤1.4% | C ≤0.15%, S 0.26-0.35%, Pb 0.15-0.35% | C ≤0.21%, Mn ≤1.5% | C ≤0.09%, S 0.26-0.35%, P |
| Hardness | ~120 HB | ~80 HRB | ~130 HB | ~80 HRB |
| Tensile (MPa) | 360-510 | ~540 | 410-560 | ~540 |
| Machinability % | 70 | 160 | 70 | 136 |
| Typical use | Frames, brackets, weldments | High-volume turned parts, hydraulic fittings | Structural sections, base plates | Screw-machine parts, fittings, couplings |
More on CNC Turning Steel
Finishing options, quality documentation and general cnc turning guidance for all steel grades are on our CNC Turning Steel page.
No drawing yet? Sketch the part in our free 3D + 2D builder and send it with your RFQ.
Quoting CNC Turning S235JR Steel
Send a STEP/IGES model or PDF drawing, confirm S235JR Steel and its condition (we usually see it supplied hot-rolled), the quantity, critical tolerances and any finish or certificate requirements.
S235JR Steel in Other Processes
Related
Send the drawing, the S235JR Steel condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
Does CNC Turning S235JR Steel require dedicated tooling?
Most S235JR Steel turning work uses standard cutting tools and CNC programs; dedicated fixtures are made only when geometry or volume requires them.
What is CNC Turning S235JR Steel and how is it done?
CNC Turning S235JR Steel refers to cNC turning rotates the workpiece against a single-point tool to produce cylindrical features, threads and grooves. Applied to S235JR Steel — strong, economical and widely available — VT machining produces each part to your CAD drawing, selecting parameters from your tolerance, finish and quantity requirements.
Which industries use CNC Turning S235JR Steel parts?
CNC Turning S235JR Steel parts are used across aerospace, medical, automotive, electronics, semiconductor and general industrial sectors — anywhere precise S235JR Steel components are required.
Can VT machining make custom S235JR Steel parts to my drawing?
Yes. S235JR Steel turning 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.
What material thickness or size range suits CNC Turning S235JR Steel?
Turned S235JR Steel parts are produced from bar or chuck stock across a wide diameter range.