CNC Machining Prices November 9, 2026

Material is 12 to 22% of a machined part's price, so this is context, not the argument. 6061-T6 reached $4.98/kg (+0.81%), a fourth gain with momentum halved; 304 stainless $4.20/kg; 1018 steel $1.30/kg. C36000 brass fell to $8.42/kg (−1.52%) and C11000 copper to $15.86/kg as the late-October copper decline completed its pass through bar stock, so brass remains the one material not worth locking. Titanium Gr2 bar reached $22.36/kg. Machine hour rates did not move: $32 / $46 / $78 for 3-, 4- and 5-axis. What moved is the queue: typical machine queue shortened from seven days to five - the honest demand signal, and why the negotiating window is open.

The running example. Part 1472 - 6061-T6 sensor housing, 96 × 64 × 28 mm, 4-axis, Type II clear anodize, laser mark, annual 600 pieces released as two lots of 300. Benchmark price $25.10 per piece at 300. Every figure below is calculated against it.

All three received the same drawing and the same "300 pieces" line. None quoted the same scope. Catching that is the buyer's job, not the shop's to volunteer.

One written basis removes the spread: 300 pieces, 6061-T6 with EN 10204 3.1, ISO 2768-m, Type II anodize with masking, laser mark, FAI with dimensioned photos, fixtures in unit price, standard packing, EXW, no CMM unless specified. Put it on the RFQ and every shop prices the same object.

The 6% that survives is real. Shop C uses one 5-axis setup where A and B need two 4-axis setups, so its extra $1.50/pc buys coaxial accuracy and one less re-fixturing - worth paying on a bore-to-seal housing, wasted on a bracket. Normalisation does not tell you who is cheapest; it tells you what the difference buys. Awarding to A on the headline produces a $25.10 part plus five invoices nobody budgeted for.

Once scope is fixed, the remaining controllable cost is on the print.

A general tolerance block and a tool-radius allowance on the print are the highest-return DFM edit available: on a 600-piece year they remove $1,500 to $2,000 without changing how the part works.

Fixed cost is $2,070 (program $330, fixture $1,240, FAI $240, mark setup $60, other $200) and variable cost $18.20/pc. That sets every breakpoint and is why a 600-piece quote cannot be honoured on a 300-piece release.

The breakpoints that matter are 300 and 600. Below 300 you are buying setup; above 1,200 almost nothing is left to amortise and further concessions must come from the material leg, which is not negotiable. Consolidating two 300-piece releases into one 600-piece order saves $4.05/pc, or $2,430 a year, with no change to the drawing.

Shops price uncertainty. A thin enquiry adds a risk premium no negotiation removes later, because it is already inside the number.

Send the eight-line scope, annual quantity and release cadence together and a 300-piece quote typically comes back 8 to 15% lower with no change in the supplier's margin - the cheapest saving here, available before anyone cuts metal.

Re-issue the RFQ on one written basis before comparing anything. Require each shop to state fixture cost, setup quantity, finish, inspection, certificate and delivery terms separately. Comparing headlines on a 64% spread is a coin flip weighted toward the least complete quote.

Consolidate the two 300-piece releases into one 600-piece order while the queue is short. With queue down from seven days to five, shops will trade price for a longer run: $2,430 a year on this part, with no calendar cost.

Do not lock brass this month, or chase the aluminium move. C36000 at $8.42/kg is still passing through a copper decline from weeks ago, so November and early December quotes keep easing. Aluminium's fourth gain was 0.81% - a $0.04/kg move shifts a $25.10 part by well under one cent. Spend the call on setup amortisation.

The queue is the thermometer. Five days is a cooling book, not a floor; past ten days the setup concessions vanish before the material leg moves. Brass softness is late, not new - a two-to-four-week lag keeps it easing even if copper turns, though a sustained reversal reaches bar stock by December. And finishing capacity is the hidden constraint: an unrequested anodizing rush premium means a full tank, and that queue sets your real date.