CNC Machining Prices October 19, 2026

Sources: published spot assessments, SHFE front-month futures, national inventory surveys.

The problem is binary. For the previous two weeks, the post-holiday story was simple - aluminium ingot and billet inventory kept adding, week after week. That build said the upstream was loose, processing fees were negotiable, and 6061-T6 stock for Q4 was the easiest line on the quote sheet. This week, both lines printed negative for the first time since the holiday: ingot down 14,000 tonnes, billet down 13,500 tonnes.

The cause is downstream restock finally arriving. Extrusion converters, automotive Tier-1s and battery-tray fabricators that held off through the holiday are now ordering material into a working supply chain. National aluminium processing-fee data (around ¥400/tonne for 90 mm billet in Wuxi) is still negotiable, but the margin of slack has narrowed in a single session. What it means for your quote is direct: the 6061-T6 plate and billet price quotes coming back this week are within 1–2% of the floor of the post-holiday range - and the range itself is no longer widening.

The cost consequence in dollar terms is small today and large on the timeline. A buyer locking 6061-T6 plate stock in the next ten trading days is paying roughly the same as two weeks ago. A buyer who waits until November is paying the next round of firming - typically 2–4% per 1% move in ingot, after processing-fee re-set. The window has not closed yet. It has started to close.

Three things changed in the data between October 12 and October 19. Each one of them moves a line on a CNC quote.

Aluminium inventory reversed. Ingot and billet both drew on the same week, breaking a six-week build streak. The "loose upstream" story that defined the last two CNC price notes is no longer operative. Lock 6061-T6 and 7075-T6 stock inside ten trading days or pay the next 2–4% firming.

Copper is now a three-week trend, not a one-off. Copper +0.60% this week on top of +1.19% last week and a +0.99% gain the week before means every brass C360 and bronze C932 bare-stock line is repricing cumulatively. Re-quote brass and bronze work this week - the quote that comes back is 3–5% above the one you got in mid-September.

Steel has put in a higher low. HRC most-traded at ¥3,295/tonne is +1.04% on the week and +2.6% above the post-holiday trough. Carbon-steel 1018 and 1045 plate quotes that were negotiable three weeks ago are no longer the easy line. Lock Q4 carbon-steel plate volume by month-end or move to the firm side of the cycle.

Cost lines as a machine shop actually bills, expressed as USD per kg of finished part material. Cycle-time multipliers are folded in: 6061-T6 takes 1.0× the cycle, 304 stainless 2.2×, Ti-6Al-4V 5–8×.

USD ranges reflect October 16 spot assessments and the prevailing weekly reference rate of approximately ¥6.68/USD. Cycle-time factor is the multiplier on aluminium 6061 baseline.

Rates are quoted inclusive of machine time, operator, and standard overhead. Material, setup, special tooling, finishing, inspection and certification are billed separately. Validity windows across the industry have shortened to 7–14 days on tight tolerances - lock quotes in writing.

Single-shift operation. Double-shift and dedicated-line rates can be 15–25% lower. Prototype (1–10 pc) rates carry a 30–60% setup premium over production (100+ pc) rates.

The September manufacturing PMI snapshot is still the dominant macro signal for Q4 quotes. Raw-material input price sub-index at 60.8% and factory-gate ex-factory sub-index at 54.0% produced a 6.8-percentage-point gap - a 12-month high. October readings are not yet published, but the spot data through October 19 is consistent with the input side staying firm while the ex-factory side lags.

The practical read for a CNC buyer is that quotes with validity longer than 14 days on tight-tolerance work are getting harder to come by from shops with thin margins. Push for written validity on any quote above 80 USD/kg finished, and ask for an explicit clause on copper-weight reset for brass, bronze and copper parts.

Three moves that the data is pointing to, in priority order.

Lock aluminium-heavy RFQs now. 6061-T6 and 7075-T6 plate and billet stock is at the floor of the post-holiday range. The first draw on national inventory this week is the regime change. Close the quote inside ten trading days, lock the material spot, book a production slot for November or early December. Waiting past the first week of November costs 2–4% on the per-kg finished price.

Re-quote brass and bronze work. Copper has closed higher three weeks running. Tin added another 1% this week. Brass C360 and bronze C932 bare-stock that came back in mid-September is now 3–5% off-market. If your part can run on aluminium 6061 with a Type II anodize instead of brass with electroless nickel, the cost gap widens by roughly the same 3–5% - and the lead time shortens.

Treat carbon-steel plate like aluminium for procurement timing. HRC is +1.04% this week and the marginal cash margin at the mill has turned positive on three consecutive weekly surveys. The Q4 floor is forming. Lock November and December plate volume this week. Hold on 304 stainless - nickel softness has another 2–3 weeks to run.

The part categories and material scope we machine for Q4 production. Standard tolerance band is ±0.05 mm; tightest on request is ±0.005 mm. All processes are supported by EN 10204 3.1 material certification and full CMM dimensional reporting.

Request a CNC RFQ- Lock This Week