Alpha-beta titanium for compressor discs, shafts and airframe fittings. We machine 5Al 2Sn 2Zr 4Mo 4Cr to ±0.005 mm, control the heat-treat window, and ship first articles in 3–5 days.
Ti-17 (5Al 2Sn 2Zr 4Mo 4Cr) punishes loose process control. These are the failures we see most often in incoming RFQs.
Ti-17 cuts at lower speeds than Ti-6Al-4V and keeps its strength hot. Too much radial engagement or a long tool overhang and the cutter starts ringing. Scrap a near-net forging at that stage and you have burned the whole material budget.
Solution treat and age determines whether you get the strength or the fracture toughness you designed for. Send a part out for aging with no thermocouple record and the mechanical properties become an open question at final acceptance.
Sealing flanges, diaphragm webs and thin ribs distort as residual stress releases. Machine it in one pass without stress-relief steps and the part measures fine on the bench, then fails to close the gap on the assembly fixture.
Titanium has low thermal conductivity, so heat stays in the cutting edge. A shop that quotes Ti-17 at aluminium feeds will either burn through tooling or quietly slow the job down and miss the delivery date.
Two capabilities decide whether a Ti-17 part comes off the machine on size: the setup strategy and the heat-treat sequence.
Ti-17 parts usually start as a forging or a thick bar, so the first operation removes a lot of metal. We rough on 5-axis centers with high-pressure coolant and trochoidal paths to keep radial engagement low. That limits the heat going into the edge and the heat going into the part.
For compressor discs, shafts and housings, we machine from a single setup wherever the geometry allows. Fewer re-clamps means fewer datum shifts, and datum shifts are what turn a ±0.05 mm callout into a ±0.10 mm result.
Ti-17 is used because it can be solution treated and aged to a strength level higher than Ti-6Al-4V, with better toughness at the same time. That only holds if the thermal cycle is controlled. We leave machining stock for post-heat-treat finishing and record the furnace cycle on request.
After aging, the part goes back on the machine for finishing and any datums that moved. Thin webs, seal grooves and bearing bores are cut in the aged condition so the final dimensions hold at the specified tolerance.
If your drawing calls for a specific aging temperature or a hardness range, say so in the RFQ. We will quote the sequence around it rather than around a default.
Pick Ti-17 when you need more strength than Ti-6Al-4V without giving up toughness. Pick something else when the part is simple or the temperature is moderate.
| Grade | Typical use | Why choose it |
|---|---|---|
| Ti-17 (UNS R58640) | Compressor discs, fan shafts, thick sections | Higher strength than Ti-6Al-4V with good toughness |
| Ti-6Al-4V (Grade 5) | Airframe brackets, medical implants, general parts | Widely available, predictable machining, lower cost |
| Ti-6Al-2Sn-4Zr-2Mo | Hot compressor sections near 540 °C | Better creep resistance at elevated temperature |
| Commercially pure Ti (Grade 2) | Chemical and marine hardware | Best corrosion resistance, low strength |
| Ti-5Al-2.5Sn | Cryogenic and weld-critical parts | Stable at low temperature, easy to weld |
One shop for the whole part, from bar or forging to a finished, inspected component.
Simultaneous 5-axis centers for contoured discs, bladed features and parts that need four sides cut in one setup.
3-axis and 4-axis milling plus mill-turn centers for shafts, sleeves and threaded titanium bodies.
Rotary table capacity of Ø400 mm for flanged rings, seal housings and round parts with tight concentricity.
Single-piece runs from bar stock so you can test fit and function before committing to a forging.
Bead blasting, tumbling, brushing and polishing; masked anodizing where the drawing calls for it.
Raw material check, in-process monitoring and final inspection before shipment, with reports on request.
Numbers below come from our equipment list, not from a general industry range.
| Item | Range | Notes |
|---|---|---|
| Maximum part size | 4,000 mm | Long shafts and rails |
| Large travel | 4,000 × 400 × 150 mm | Elongated parts, one setup |
| Medium travel | 750 × 1,150 × 550 mm | Housings and plates |
| Compact travel | 500 × 500 × 450 mm | Small precision work |
| Rotary table | Ø400 mm | Round and flanged parts |
| Tolerance | ±0.005 mm | Best achievable, verified by inspection |
| Surface finish | Ra 0.2–0.8 μm | Fine finish on sealing faces |
| Quality rate | 99.99% | Qualification across shipped parts |
Fifteen years in titanium and hard alloys, with the equipment and paperwork to match.
Founded in 2011. Titanium and heat-resistant alloys are routine work here, not an occasional job.
Milling, turning and mill-turn capacity across three wholly-owned plants.
Simultaneous 5-axis machining for contoured and multi-face titanium parts.
Quotation and free DFM analysis within 12 hours; production can start within 24 hours.
Every part checked before it leaves. Reports issued on request.
From one prototype to 10,000+ part runs, priced the same way.
Compressor discs and fan shafts in Ti-17 forgings, machined after solution treatment and aging so final bores hold size.
Thick lugs and attachment fittings where high strength and fracture toughness both matter. Single-setup machining keeps hole patterns true.
Corrosion-resistant Ti-17 bodies and seal housings with fine-finished mating faces. Material traceability kept with the job.
Titanium suspension and driveline parts produced under IATF 16949 process controls, from one-off prototypes to repeat runs.
Yes. Ti-17 is the common name for the alpha-beta alloy with the nominal composition 5Al 2Sn 2Zr 4Mo 4Cr. UNS R58640 is the unified numbering system designation.
Some drawings list it as Titanium Grade 17. Treat all three as the same material and check the specification the drawing calls out, because heat-treat requirements can differ between aerospace and industrial programs.
Ti-17 can be aged to a higher strength than Ti-6Al-4V while keeping better fracture toughness, which matters in thick sections where a quench-through would otherwise be difficult.
It is also more forgiving in large forgings because it deep hardens. If your part is a thin bracket at moderate temperature, Ti-6Al-4V is usually the cheaper answer.
It depends on the section and the aging cycle. For most parts we leave 0.3–0.8 mm on critical surfaces after solution treatment and cut the final size in the aged condition.
Tell us the specified aging temperature and any hardness range in the RFQ and we will plan the stock allowance around it rather than applying a default.
Our best achievable tolerance is ±0.005 mm. On production titanium parts, ±0.01 mm on bores and fits is more typical and easier to verify repeatably.
Tighter callouts are possible on selected features, but they drive extra inspection time. Send the drawing and we will tell you which dimensions are realistic at what cost.
Both. Prototype and small-batch parts usually come from bar. Larger structural parts are better run from a forging or a near-net blank to reduce cut time and material waste.
If you supply the forging, we will check the stock condition before quoting so the setup and the stock allowance are based on the real blank.
We hold ISO 9001:2015, IATF 16949:2016, ISO 13485:2016 and ISO 27001:2022 certifications. Inspection reports and material records can be issued with the shipment.
If your program requires a specific first-article format or a full dimensional report, list it in the RFQ so it is included in the quote and the schedule.
Quotation and free DFM analysis come back within 12 hours, and production can start within 24 hours of approval. Most parts ship in 3–5 days.
That timeline assumes standard material availability. Ti-17 bar and forgings in unusual sizes may need to be sourced first, and we will flag that in the quote.
Yes. Uploads are kept secure and confidential, and we can sign an NDA on request before any files change hands.
Most customers send a drawing and a step file for the DFM review. If you would rather start with a rough sketch and a target quantity, that works too.
Upload the drawing and we will come back with a quotation and a free DFM review within 12 hours. One prototype or ten thousand, no minimum order quantity.
12-hour quote100% inspectionNo MOQNDA on request
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Upload your 3D model or 2D drawing and get a quotation with a free DFM analysis. Maximum processing size 4,000 mm.
CNC Metals 13 grades
CNC Plastics 10 grades
Machines & processes 12 options
Surface & post-processing 10 options
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