VT machining offers CNC Turning for 1144 Steel (UNS G11440 / Stressproof-type), typically supplied cold-drawn, stress-relieved. High-strength free-machining steel with low distortion after machining.
CNC Turning Notes for 1144 Steel
1144 Steel turns with good chip control at standard cutting data.
For estimating, a 100 × 100 × 10 mm block of 1144 Steel weighs about 0.79 kg.
Starting Parameters for CNC Turning 1144 Steel
| Cutting speed (carbide) | 175-305 m/min |
|---|---|
| Feed | 0.1-0.35 mm/rev |
| Spindle speed, Ø25 mm bar | 2230-3880 rpm |
| Insert / tool class | ISO P — CVD-coated carbide |
| Coolant | Emulsion (5-8%); dry is possible for interrupted cuts |
Starting values for 1144 Steel, Cold-drawn, stress-relieved; optimised on the first article.
1144 Steel Data Relevant to CNC Turning
| Equivalent designations | UNS G11440 / Stressproof-type |
|---|---|
| Key composition | C 0.40-0.48%, Mn 1.35-1.65%, S 0.24-0.33% |
| Typical supply condition | Cold-drawn, stress-relieved |
| Hardness (typical) | ~25-30 HRC |
| Machinability rating | 76% (AISI B1112 = 100%) |
Typical values; we work to your drawing and mill certificate.
How 1144 Steel Differs
High-strength free-machining steel with low distortion after machining.
Typical applications: Shafts, hydraulic rods, studs.
1144 Steel vs Similar Grades
| 1144 Steel | 1117 Steel | 1215 Steel | 1095 Steel | |
|---|---|---|---|---|
| Key composition | C 0.40-0.48%, Mn 1.35-1.65%, S 0.24-0.33% | C 0.14-0.20%, S 0.08-0.13% | C ≤0.09%, S 0.26-0.35%, P | C 0.90-1.03% |
| Hardness | ~25-30 HRC | ~80 HRB | ~80 HRB | ~190 HB annealed; up to ~60 HRC hardened |
| Tensile (MPa) | ~700-800 | ~470 | ~540 | ~680 annealed |
| Machinability % | 76 | 91 | 136 | 42 |
| Typical use | Shafts, hydraulic rods, studs | Case-hardened pins, shafts, studs | Screw-machine parts, fittings, couplings | Knives, springs, cutting tools |
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 1144 Steel
Send a STEP/IGES model or PDF drawing, confirm 1144 Steel and its condition (we usually see it supplied cold-drawn, stress-relieved), the quantity, critical tolerances and any finish or certificate requirements.
1144 Steel in Other Processes
Related
Send the drawing, the 1144 Steel condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
What surface finish is achievable on 1144 Steel with CNC Turning?
Surface finish on 1144 Steel is controlled to your specification; we confirm the achievable Ra against your callout.
What is CNC Turning 1144 Steel and how is it done?
CNC Turning 1144 Steel refers to cNC turning rotates the workpiece against a single-point tool to produce cylindrical features, threads and grooves. Applied to 1144 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 1144 Steel parts to my drawing?
Yes. 1144 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.
Which industries use CNC Turning 1144 Steel parts?
CNC Turning 1144 Steel parts are used across aerospace, medical, automotive, electronics, semiconductor and general industrial sectors — anywhere precise 1144 Steel components are required.
What material thickness or size range suits CNC Turning 1144 Steel?
Turned 1144 Steel parts are produced from bar or chuck stock across a wide diameter range.