Quote a titanium part the way you would quote an aluminum one and you will lose money on it — that is the trap. Titanium machining cost runs several times higher than the same geometry in a friendly alloy, and the gap does not come from one big surcharge you can spot on the invoice. It is spread across slower cutting, faster tool wear, pricier stock, and more scrap, all compounding at once. Miss any one of them and the quote looks competitive right up until the job hits the floor and eats the margin.

This guide breaks down where the extra cost actually lives in a titanium part, why the metal fights the cutter the way it does, and how to put defensible numbers against each driver so your titanium quotes win the right jobs instead of the ones that bleed.

Why titanium costs what it does

Titanium is expensive for two independent reasons, and a good quote treats them separately. First, the raw stock costs a lot per kilo. Second — and this is the part shops underprice — the metal is genuinely hard to cut, so every spindle hour removes far less material than it would in aluminum or mild steel. You are paying more for the bar and keeping the machine tied up longer to turn it into a part.

The most common grade by far is Ti-6Al-4V (Grade 5), an alpha-beta alloy used across aerospace, medical, and motorsport. Commercially pure grades (Grade 2) cut a little easier and cost a little less; the high-strength and ELI grades cost more and cut harder. Whatever the grade, the cost logic is the same: low machinability turns into machine hours, and machine hours are the largest line on most quotes. If you have not built a per-machine rate yet, the machine shop hourly rate calculation is the prerequisite for everything below.

The machinability penalty: why cutting is slow

Three properties of titanium conspire against the tool. It has poor thermal conductivity, so the heat of cutting stays concentrated at the edge instead of flowing into the chip — edge temperatures climb fast. It work-hardens, so a dull pass or a rubbing tool leaves a harder skin for the next pass. And it is chemically reactive at temperature, so it tends to gall and react with the tool material. The practical result is that you run titanium at a fraction of the surface speed you would use on aluminum.

Surface speed is what turns into cycle time. The lower the speed, the slower the material comes off, the longer the spindle runs, the bigger the bill:

Material	Typical cutting speed (carbide)	Speed vs. titanium
Aluminum 6061	300–1000 m/min	~8–15x faster
Mild steel	100–200 m/min	~3x faster
Stainless 304/316	50–120 m/min	~1.5–2x faster
Ti-6Al-4V (Grade 5)	30–60 m/min	baseline
Inconel 718	20–40 m/min	slower still

Treat the ranges as orientation, not gospel — coolant strategy, tool coating, and rigidity move them. But the shape is real: a feature that takes 4 minutes to cut in aluminum can take 25–35 minutes in titanium on the same machine at the same hourly rate. The hourly rate did not change. The hours did. This is the single biggest reason titanium quotes built off an aluminum cycle time come in catastrophically low. The broader cost-driver picture lives in how much CNC machining costs; titanium just pushes the cycle-time block to the front.

Tool wear is a line item, not a footnote

In aluminum, tooling is a rounding error you bury in overhead. In titanium it is a real, recurring cost you should quote explicitly. The same heat and reactivity that slow the cut also chew through cutting edges: carbide endmills and inserts wear faster, get changed more often, and cost real money per part on a titanium job.

Two things follow for the estimate. First, build a tooling allowance into the titanium machine rate or add it as a separate per-part line — do not pretend it is free. A reasonable starting point is to carry tooling consumption as a percentage uplift on titanium cutting time and refine it from your own tool-change logs. Second, the wear is sensitive to how the job is run: climb milling, generous high-pressure coolant, and not letting a tool dwell or rub all extend tool life. A shop that runs titanium well spends less on tooling than one that treats it like steel — but both spend more than zero, and the quote has to say so.

Buy-to-fly: stock cost and scrap

Titanium bar and plate cost many times more per kilogram than aluminum or mild steel. The exact number moves with grade, form, and market, but the order of magnitude is what matters for quoting: where aluminum stock might be a few euros per kilo, titanium bar is routinely an order of magnitude higher. That makes the chips expensive. Every kilo you machine away is a kilo of premium metal you paid for and then turned into swarf.

This is why aerospace talks about the buy-to-fly ratio — the mass of stock bought divided by the mass of the finished part. A part milled from solid with a 6:1 buy-to-fly ratio means you bought six kilos of titanium to ship one. On cheap material that waste is tolerable; on titanium it can dominate the whole quote. Two consequences for the estimator:

1. Price the stock you buy, not the part you ship. Compute material cost from the billet or bar envelope plus cutoff and grip allowance, not from the finished part weight. Titanium's low density (~4.43 g/cm³, lighter than steel) makes the per-part mass look small — do not let that hide the per-kilo price.
2. Near-net stock pays for itself faster than on any other metal. A forging, a pre-sawn blank, or a smaller starting envelope cuts both the material bill and the cutting time. On titanium the savings on both sides are large enough to be worth quoting as an option.

A worked titanium quote

Put the blocks together for a mid-complexity Ti-6Al-4V bracket, batch of 10, machined from solid bar. The point is to see how the same part costs against an aluminum reference.

Cost block	Aluminum 6061	Ti-6Al-4V
Stock mass bought	0.9 kg @ €7	1.4 kg @ €45
Material per part	€6.30	€63.00
Cutting time	14 min	70 min
Machine cost @ €75/hr	€17.50	€87.50
Tooling allowance	included	€9.00
Setup ÷ 10 parts	€18.00	€22.00
Subtotal cost	€41.80	€181.50
Price @ 35% margin	€64.31	€279.23

Same drawing, same machine, same shop — roughly a 4x swing in price, and not one line of it is arbitrary. Material is ~10x per kilo, cutting time is ~5x, tooling appears where it was invisible before, and setup creeps up because work-holding titanium rigidly matters more. Note the margin uses price = cost ÷ (1 − margin); if that math is fuzzy, margin vs markup explains why the two diverge fast at these cost levels. Turned titanium parts follow the same logic on a lathe — see the CNC turning quoting guide for the spindle-time side.

A quoting checklist for titanium parts

Before a titanium quote leaves the shop, walk these:

• Grade confirmed, not assumed. Grade 2 and Grade 5 cut and cost differently; ELI and high-strength grades differ again. Quote the alloy on the drawing.
• Cycle time built from titanium speeds, not borrowed from steel. If your estimate reused a similar steel or aluminum part's time, it is almost certainly low.
• Tooling carried explicitly. As a rate uplift or a per-part line — never buried in general overhead.
• Material priced from stock bought. Billet envelope plus cutoff and grip, at the titanium per-kilo price, not finished-part weight.
• Buy-to-fly sanity-checked. A high ratio milled from solid is a flag to quote a near-net option or revisit work-holding.
• Tolerances and finish read off the print. Tight callouts add finishing passes and inspection, and on titanium each extra pass costs more — the GD&T and tolerances guide maps callouts to cost.

Run these and the most common failure mode — a confident titanium quote priced like an easier metal — stops happening. More on systematic checks in reducing quoting errors.

Let the drawing build the titanium quote

The reason titanium gets underquoted is rarely bad math — it is reading the drawing under deadline pressure and reaching for a number from a part that looked similar. But a similar shape in titanium is a different cost entirely, and that is exactly the judgment that gets skipped when the quote is due.

QuoteBuddy reads the technical drawing, surfaces the material callout and grade, the key dimensions, tolerance classes, and the operations the geometry implies — then builds the unit price from your own machine rates, titanium cutting times, tooling allowances, material costs, and target margin, the same disciplined way every time. The cost blocks in this article stop being something you reconstruct by hand on every RFQ.

Start a 30-day trial and run a real titanium drawing through it. See whether the breakdown it builds — material from stock bought, cycle time at titanium speeds, tooling carried as its own line — matches what your best estimator would have produced, only faster and without the aluminum-priced surprise on the shop floor.