Every Brass Part You Buy Just Got More Expensive with Copper at Record High
05 June5/6/2026:
Brass is copper — typically 60 to 90 percent of it by weight. When copper hits record highs, brass rod prices follow immediately and in lockstep. If any of your precision-machined components are made from brass, bronze, or other copper alloys, the current market environment is adding real cost to every part you order.
Copper has always been at the heart of precision machining — and nowhere more directly than in brass components. Brass is an alloy of copper and zinc, with copper content typically ranging from 60% to over 90% depending on the grade. Free-machining C360 brass, the workhorse of screw machining shops, is approximately 61.5% copper. That means when LME copper climbs to $13,000 per tonne, brass rod pricing climbs with it — dollar for dollar, pound for pound. Brass fittings, bushings, shafts, end caps, connectors, valve seats — these everyday components at M&R Engineering are all directly exposed. For years, copper-alloy pricing moved in predictable cycles. That era has ended.
What the market is experiencing today is structural, not cyclical. There is no seasonal dip coming that will reset brass prices back to where they were two years ago. The convergence of years of underinvestment in new copper mining capacity, accelerating demand from AI data centers, EV infrastructure, and defense spending, declining ore grades at major copper mines globally, and a new national-security framing of copper as a strategic resource have created a fundamentally different cost environment — one that flows directly into your brass component pricing.
"Copper has entered a new era — no longer just a cyclical industrial commodity, but a strategic asset critical to digital infrastructure and the global energy transition."— Crux Investor, January 2026
What is driving prices to record levels?
The London Metal Exchange three-month copper contract is trading near $12,965–$13,000 per tonne, with markets assigning a scarcity premium to available inventory. COMEX copper opened 2026 at $5.69/lb and is trading at $6.42/lb as of June 1 — a sustained move driven in large part by structural demand shifts. Demand from AI data centers alone is significant: when you account for power delivery, transformers, cabling, and redundancy, the copper load in a single large data center facility is enormous — and hundreds are being built globally.
On the supply side, the picture is equally challenging. Global visible copper inventory, while elevated in the US, is tightening internationally. A 50% US tariff on semi-finished copper and copper-intensive derivatives has disrupted normal trade flows. And the June 30, 2026 US refined-copper tariff review deadline has been driving pre-positioning behavior that further distorts pricing.
New copper mines take 10–20 years from discovery to production. Capital spending is rising at major miners, but the supply response will take years to arrive — meaning structurally elevated prices are the baseline scenario through the late 2020s.
Defense spending, grid modernization, EV manufacturing, and AI infrastructure are all less price-sensitive than traditional copper buyers. This shifts the demand profile toward streams that absorb price increases without reducing consumption.
Goldman Sachs has published a forecast range of $11,000–$13,000+ per metric ton for 2026. That $2,000/MT swing directly translates into brass rod price volatility — because brass rod suppliers pass copper cost changes through on a near-real-time basis. A program you quoted six months ago at one price may be repriced significantly today, not because machining costs changed, but because the copper content of every bar of brass stock is worth more.
How brass pricing works — and why copper is the lever
When you purchase a machined brass part, you are purchasing a component whose single largest cost input is copper. Brass rod suppliers price their material with a copper content surcharge tied directly to the LME spot price, updated on short cycles. A $1,000/tonne move in copper translates to a proportional increase in brass rod cost — and brass rod is typically 40–60% of the total part cost on screw-machined components. At current copper prices, that surcharge is substantial and is being felt across every active brass program.
At M&R Engineering, brass and copper-alloy components represent a significant share of production — from brass shafts, bushings, and front bushings for automotive and aerospace customers, to brass end caps for electronics and brass shoulder screws for specialty industries. Swiss machining and Davenport multi-spindle production also includes copper-alloy work across semiconductor, medical, and defense programs. These are high-copper-content parts, and raw material is the dominant cost driver on all of them.
Three ways to protect your programs right now
Your Brass & Copper-Alloy Programs: Let's Review Together
M&R Engineering's expertise in CNC Swiss, Davenport screw machining, and multi-spindle production across brass, aluminum, and stainless makes us uniquely positioned to help customers optimize programs in this material cost environment. Whether your parts are currently in brass and could benefit from a material or design review, our team in Orange is ready to work with you — at no charge.
The copper market will remain volatile through at least the end of 2026, and the structural drivers — supply deficits, AI infrastructure demand, EV growth, and tariff uncertainty — are not going away quickly. Because brass pricing is directly and immediately tied to copper, every brass component program your company runs is exposed. The customers who will be best positioned are those who act now: reviewing alloy specs, consolidating volumes, and exploring alternatives where technically feasible.
We are in this with you. Contact your M&R Engineering account representative or reach us at 800.454.3103 and let's put a plan together before the fall ramp kicks in.
