VT machining offers CNC Turning for 1215 Steel (UNS G12150 / 11SMn30), typically supplied cold-drawn. Lead-free free-machining steel for high-speed screw machines.
CNC Turning Notes for 1215 Steel
1215 Steel turns with good chip control at standard cutting data.
For estimating, a 100 × 100 × 10 mm block of 1215 Steel weighs about 0.79 kg.
Starting Parameters for CNC Turning 1215 Steel
| Cutting speed (carbide) | 320-560 m/min |
|---|---|
| Feed | 0.1-0.35 mm/rev |
| Spindle speed, Ø25 mm bar | 4070-7130 rpm |
| Insert / tool class | ISO P — CVD-coated carbide |
| Coolant | Emulsion (5-8%); dry is possible for interrupted cuts |
Starting values for 1215 Steel, Cold-drawn; optimised on the first article.
1215 Steel Data Relevant to CNC Turning
| Equivalent designations | UNS G12150 / 11SMn30 |
|---|---|
| Key composition | C ≤0.09%, S 0.26-0.35%, P |
| Typical supply condition | Cold-drawn |
| Hardness (typical) | ~80 HRB |
| Machinability rating | 136% (AISI B1112 = 100%) |
Typical values; we work to your drawing and mill certificate.
How 1215 Steel Differs
Lead-free free-machining steel for high-speed screw machines.
Typical applications: Screw-machine parts, fittings, couplings.
1215 Steel vs Similar Grades
| 1215 Steel | 1144 Steel | 12L14 Steel | 1117 Steel | |
|---|---|---|---|---|
| Key composition | C ≤0.09%, S 0.26-0.35%, P | C 0.40-0.48%, Mn 1.35-1.65%, S 0.24-0.33% | C ≤0.15%, S 0.26-0.35%, Pb 0.15-0.35% | C 0.14-0.20%, S 0.08-0.13% |
| Hardness | ~80 HRB | ~25-30 HRC | ~80 HRB | ~80 HRB |
| Tensile (MPa) | ~540 | ~700-800 | ~540 | ~470 |
| Machinability % | 136 | 76 | 160 | 91 |
| Typical use | Screw-machine parts, fittings, couplings | Shafts, hydraulic rods, studs | High-volume turned parts, hydraulic fittings | Case-hardened pins, shafts, studs |
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 1215 Steel
Send a STEP/IGES model or PDF drawing, confirm 1215 Steel and its condition (we usually see it supplied cold-drawn), the quantity, critical tolerances and any finish or certificate requirements.
1215 Steel in Other Processes
Related
Send the drawing, the 1215 Steel condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
What material thickness or size range suits CNC Turning 1215 Steel?
Turned 1215 Steel parts are produced from bar or chuck stock across a wide diameter range.
Does CNC Turning 1215 Steel require dedicated tooling?
Most 1215 Steel turning work uses standard cutting tools and CNC programs; dedicated fixtures are made only when geometry or volume requires them.
Why is 1215 Steel a good choice for CNC Turning?
1215 Steel is strong, economical and widely available, which makes it well suited to CNC Turning. We tune the process to the alloy so the finished 1215 Steel turning part meets your dimensional and functional requirements.
Which industries use CNC Turning 1215 Steel parts?
CNC Turning 1215 Steel parts are used across aerospace, medical, automotive, electronics, semiconductor and general industrial sectors — anywhere precise 1215 Steel components are required.
What is CNC Turning 1215 Steel and how is it done?
CNC Turning 1215 Steel refers to cNC turning rotates the workpiece against a single-point tool to produce cylindrical features, threads and grooves. Applied to 1215 Steel — strong, economical and widely available — VT machining produces each part to your CAD drawing, selecting parameters from your tolerance, finish and quantity requirements.
Can VT machining make custom 1215 Steel parts to my drawing?
Yes. 1215 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.