VT machining offers CNC Milling for AZ31B Magnesium (UNS M11311 / ASTM B90), typically supplied H24 / O. Most common wrought magnesium; formable and weldable.
CNC Milling Notes for AZ31B Magnesium
AZ31B Magnesium mills well with conventional strategies; finishing passes are planned to meet flatness and finish callouts.
For estimating, a 100 × 100 × 10 mm block of AZ31B Magnesium weighs about 0.18 kg.
Starting Parameters for CNC Milling AZ31B Magnesium
| Cutting speed (carbide) | 425-1020 m/min |
|---|---|
| Feed per tooth | 0.035-0.14 mm |
| Spindle speed, Ø10 mm end mill | 13530-24000 rpm |
| Insert / tool class | ISO N — sharp, polished, uncoated or DLC |
| Coolant | Dry or mineral oil only — never water-based (fire risk) |
| Thermal growth, 100 mm part, +10 °C | 26 µm (CTE 26 µm/m·K) |
Starting values for AZ31B Magnesium, H24 / O; optimised on the first article.
AZ31B Magnesium Data Relevant to CNC Milling
| Equivalent designations | UNS M11311 / ASTM B90 |
|---|---|
| Key composition | Al 2.5-3.5%, Zn 0.6-1.4% |
| Typical supply condition | H24 / O |
| Hardness (typical) | ~49-73 HB |
Typical values; we work to your drawing and mill certificate.
How AZ31B Magnesium Differs
Most common wrought magnesium; formable and weldable.
Typical applications: Electronics housings, aerospace panels.
AZ31B Magnesium vs Similar Grades
| AZ31B Magnesium | AZ91D Magnesium | ZK60 Magnesium | |
|---|---|---|---|
| Key composition | Al 2.5-3.5%, Zn 0.6-1.4% | Al 8.5-9.5%, Zn 0.45-0.9% | Zn 4.8-6.2%, Zr ≥0.45% |
| Hardness | ~49-73 HB | ~63 HB | ~80 HB |
| Tensile (MPa) | ~240-290 | ~230 | ~340 |
| Typical use | Electronics housings, aerospace panels | Laptop and phone housings, automotive | Aerospace and motorsport structural parts |
More on CNC Milling Aluminum
Finishing options, quality documentation and general cnc milling guidance for all aluminum grades are on our CNC Milling Aluminum page.
No drawing yet? Sketch the part in our free 3D + 2D builder and send it with your RFQ.
Quoting CNC Milling AZ31B Magnesium
Send a STEP/IGES model or PDF drawing, confirm AZ31B Magnesium and its condition (we usually see it supplied H24 / O), the quantity, critical tolerances and any finish or certificate requirements.
AZ31B Magnesium in Other Processes
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Send the drawing, the AZ31B Magnesium condition and the quantity — pricing and lead time come back the same or next business day.
Request a QuoteFrequently Asked Questions
What is the typical lead time and minimum order for CNC Milling AZ31B Magnesium?
CNC Milling prototypes for AZ31B Magnesium can be produced quickly and scaled to series production. Send your drawing and quantity and we will advise lead time and any minimum order.
Why is AZ31B Magnesium a good choice for CNC Milling?
AZ31B Magnesium is ultralight with excellent machinability, which makes it well suited to CNC Milling. We tune the process to the alloy so the finished AZ31B Magnesium machining part meets your dimensional and functional requirements.
Which industries use CNC Milling AZ31B Magnesium parts?
CNC Milling AZ31B Magnesium parts are used across aerospace, medical, automotive, electronics, semiconductor and general industrial sectors — anywhere precise AZ31B Magnesium components are required.
What tolerances can you hold for CNC Milling AZ31B Magnesium?
Achievable tolerances for AZ31B Magnesium machining depend on the alloy, geometry and feature size. Milling holds positional and dimensional tolerances to around ±0.01 mm, tighter with precision setups. Exact figures are confirmed against your drawing callouts.
What surface finish is achievable on AZ31B Magnesium with CNC Milling?
Surface finish on AZ31B Magnesium is controlled to your specification; we confirm the achievable Ra against your callout.
What is CNC Milling AZ31B Magnesium and how is it done?
CNC Milling AZ31B Magnesium refers to multi-axis milling cutters remove material to produce prismatic features, pockets, slots and contoured 3D surfaces. Applied to AZ31B Magnesium — ultralight with excellent machinability — VT machining produces each part to your CAD drawing, selecting parameters from your tolerance, finish and quantity requirements.