VT machining offers CNC Turning for SECC Steel (JIS G3313 electro-galvanised SPCC), typically supplied cold-rolled, EG coated. Thin, smooth zinc coating for painted or bare electronics enclosures.
CNC Turning Notes for SECC Steel
SECC Steel turns with good chip control at standard cutting data.
For estimating, a 100 × 100 × 10 mm block of SECC Steel weighs about 0.79 kg.
Starting Parameters for CNC Turning SECC Steel
| Cutting speed (carbide) | 155-275 m/min |
|---|---|
| Feed | 0.1-0.35 mm/rev |
| Spindle speed, Ø25 mm bar | 1970-3500 rpm |
| Insert / tool class | ISO P — CVD-coated carbide |
| Coolant | Emulsion (5-8%); dry is possible for interrupted cuts |
Starting values for SECC Steel, Cold-rolled, EG coated; optimised on the first article.
SECC Steel Data Relevant to CNC Turning
| Equivalent designations | JIS G3313 electro-galvanised SPCC |
|---|---|
| Key composition | SPCC base + electro-zinc |
| Typical supply condition | Cold-rolled, EG coated |
| Hardness (typical) | ~50-65 HRB |
| Machinability rating | 55% (AISI B1112 = 100%) |
Typical values; we work to your drawing and mill certificate.
How SECC Steel Differs
Thin, smooth zinc coating for painted or bare electronics enclosures.
Typical applications: Computer chassis, electrical cabinets.
SECC Steel vs Similar Grades
| SECC Steel | SPCC Steel | SGCC Steel | Q345 Steel | |
|---|---|---|---|---|
| Key composition | SPCC base + electro-zinc | C ≤0.15% | Low-carbon base + hot-dip zinc | C ≤0.20%, Mn ≤1.7% |
| Hardness | ~50-65 HRB | ~50-65 HRB | ~50-65 HRB | ~150 HB |
| Tensile (MPa) | ≥270 | ≥270 | ≥270 | 470-630 |
| Machinability % | 55 | 55 | 55 | 65 |
| Typical use | Computer chassis, electrical cabinets | Sheet-metal enclosures, brackets, panels | Outdoor cabinets, HVAC, roofing parts | Bridges, machine bases, pressure parts |
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 SECC Steel
Send a STEP/IGES model or PDF drawing, confirm SECC Steel and its condition (we usually see it supplied cold-rolled, EG coated), the quantity, critical tolerances and any finish or certificate requirements.
SECC Steel in Other Processes
Related
Send the drawing, the SECC 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 SECC Steel with CNC Turning?
Surface finish on SECC Steel is controlled to your specification; we confirm the achievable Ra against your callout.
What is the typical lead time and minimum order for CNC Turning SECC Steel?
CNC Turning prototypes for SECC 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.
Which industries use CNC Turning SECC Steel parts?
CNC Turning SECC Steel parts are used across aerospace, medical, automotive, electronics, semiconductor and general industrial sectors — anywhere precise SECC Steel components are required.
Does CNC Turning SECC Steel require dedicated tooling?
Most SECC 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 SECC Steel?
Turned SECC Steel parts are produced from bar or chuck stock across a wide diameter range.
Why is SECC Steel a good choice for CNC Turning?
SECC 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 SECC Steel turning part meets your dimensional and functional requirements.