Grade 5 (Ti-6Al-4V) or Grade 2 (CP)? The honest answer depends on four things: the load the part carries, the environment it lives in, the tolerance the drawing calls for, and the volume you are buying. Below is the comparison we use when we quote both options.
If you already know which one you need, send the drawing and we will confirm it. If you are not sure, the table below usually settles it in one pass.
Titanium Grade 5 vs Grade 2: side-by-side comparison
| Dimension | Grade 5 (Ti-6Al-4V) | Grade 2 (CP) |
|---|---|---|
| Cost | Higher | Lower of the two |
| Strength & performance | UTS 950 MPa, heat treatable | UTS 344 MPa, not heat treatable |
| Corrosion / durability | Good, but Grade 2 is better in acids | Excellent, especially in oxidising acids |
| Machinability & tolerance | Very difficult, tool life in minutes | Difficult but noticeably easier |
| Lead time & tooling | 7-15 days | 5-10 days |
| Choose it when | Strength-to-weight drives the design | Corrosion resistance and formability drive the design |
How to decide
- Start with the failure mode, not the price. If the part fails from corrosion, Grade 5 (Ti-6Al-4V) and Grade 2 (CP) are not interchangeable no matter what the price difference is.
- Check the tolerance the function actually needs. Tightening tolerance on a material that machines poorly multiplies the cost difference.
- Check availability. A cheaper material with a four-week lead time is more expensive than a dearer one that ships in a week.
- Check the finishing route. Plating and anodizing behave differently on each option and can change the decision on their own.
Where the cost difference comes from
Material price is only part of it. Machining time, tool wear, scrap rate and finishing cost usually decide the final number. A material that costs twice as much but machines three times faster can be cheaper per part. That is why we quote both options with the process route shown, not just a single price.
Frequently asked questions
Is Grade 5 (Ti-6Al-4V) better than Grade 2 (CP)?
Not in general. Grade 5 (Ti-6Al-4V) wins when strength-to-weight drives the design, and Grade 2 (CP) wins when corrosion resistance and formability drive the design. Give us the drawing and we will tell you which one we would choose and why.
How much more does Grade 5 (Ti-6Al-4V) cost than Grade 2 (CP)?
The material cost difference is only one input. Machining time and tool life matter as much. Send the part and we will quote both options side by side so the comparison is real.
Can you machine both Grade 5 (Ti-6Al-4V) and Grade 2 (CP)?
Yes. Both are routine for us, and we will say so if one of them is a poor fit for your geometry rather than quote it anyway.
Which one should I use for an export product?
Availability and documentation usually decide it. Both are widely stocked and certified, so the tie-breaker is normally the end user’s specification or the applicable standard.
Related pages
- Comparisons — the full index for this section.
- Ceramic vs Carbide Tooling for Hard Materials
- 6061 vs 5052 Aluminum: Strength vs Formability
- HDPE vs UHMW for Machined Parts
- 303 vs 304 Stainless: Machinability Trade-Off
- Instant CNC quote
- Tolerance quick reference
- Frequently asked questions
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