Brass Machining Guides for Buyers
Written for engineers and buyers who have a brass part to make and want to know what to ask.
- For Shops
Sep 25, 2026Should a Machine Shop Buy Machining Leads? An Honest Answer
Bought leads are not marketing and not a customer list. The arithmetic that decides whether they work for your shop, and the four shops they never work for.
- For Shops
Sep 25, 2026Quoting Brass Parts: What Machine Shops Get Wrong Most
Brass machines at 100 so it looks easy to quote. The deburring, the gauging and the metal price are where shops lose the margin they thought they had.
- For Shops
Sep 25, 2026Adding Lead-Free Brass as a Machine Shop Capability
C69300 work hardens and threads differently from C360. What actually changes on the floor, what to charge for it and why buyers ask if you have shipped it.
- For Shops
Sep 25, 2026Writing a Machine Shop Capability Profile Buyers Believe
Most capability profiles say the same nine things and prove nothing. What to write instead, and why naming what you cannot do actually wins you more work.
- Process
Sep 21, 2026Brass CNC Machining: What Buyers Should Know First
Brass is the easiest metal to machine, so why do brass quotes still come back high? The four places the money actually goes and what to put on the drawing.
- Compliance
Sep 21, 2026Leaded vs Lead-Free Brass: Which One Your Part Needs
C360 machines at 100 and lead-free brass at about 80. When the law makes that choice for you, which lead-free grade to pick and what it costs on the quote.
- Compliance
Sep 21, 2026RoHS Exemption 6(c): Leaded Brass and the 2027 Date
Exemption 6(c) lets electrical parts use copper alloys up to 4 percent lead. It is set to expire in June 2027. What buyers should be doing about it now.
- Compliance
Sep 21, 2026NSF/ANSI 61 and 372 for Machined Brass Water Fittings
The 0.25 percent weighted average lead rule, what NSF 61 adds on top, how the weighted average is calculated and what to write on a drinking water drawing.
- Materials
Sep 21, 2026Brass Alloys for Machined Parts: C360, C385 and C464
C360, C385, C377, C464, C260 and the lead-free grades compared on machinability, strength and corrosion, with the environment that picks each one for you.
- Cost
Sep 21, 2026What Really Drives the Cost of Machined Brass Fittings
How a brass fitting quote is built: bar weight, machine choice, threads, deburring, finishing and quantity. Plus the six drawing changes that lower it.
- Choosing a Supplier
Sep 21, 2026The Brass RFQ Checklist: What to Send for a Real Quote
Most brass RFQs are missing four of these. The checklist that turns a padded estimate into a firm price, plus the two lines that save you the most money.
- Choosing a Supplier
Sep 21, 2026How to Choose a Brass Machining Shop That Actually Fits
Nine questions that separate a shop turning brass every week from one that will learn on your part, and the answers that should make you keep looking.
- Process
Sep 21, 2026Swiss Machining for Brass Parts and When It Pays Off
Swiss lathes make a small threaded brass part complete in one operation. The diameter and volume bands where it wins, and what to put on your drawing.
- Process
Sep 21, 2026Deburring Brass Parts and the Cross Hole Burr Problem
Cross holes breaking into a bore leave an internal burr that fails leak tests after assembly. Why brass burrs, how shops remove them and what to specify.
- Process
Sep 21, 2026Brass Thread Standards: NPT, BSPT, BSPP and Metric
NPT wedges, BSPP needs a washer, and BSPT is not NPT. How each thread seals, why they are not interchangeable and what a brass fitting drawing really needs.
- Materials
Sep 21, 2026Dezincification Resistant Brass: DZR, CW602N, C464
Why zinc leaches out of ordinary brass in hot water and seawater, which grades resist it, how ISO 6509 testing works and when to specify DZR or naval brass.
- Process
Sep 21, 2026Stress Corrosion Cracking in Machined Brass Fittings
Residual stress plus ammonia equals cracked brass. What causes stress corrosion cracking, which parts are at risk and when to specify a stress relief anneal.
- Materials
Sep 21, 2026C360 vs C260 Brass: Machining and Forming Compared
C360 is rated 100 for machinability and C260 is rated 30. What the lead does, why C260 exists at all and how to tell which one your drawing should carry.
- Materials
Sep 21, 2026Brass vs Bronze vs Copper for Machined Parts Compared
Three copper alloy families, three different jobs. Machinability, conductivity, strength and corrosion compared, with the question that picks one for you.
- Process
Sep 21, 2026Brass Surface Finishes and Plating for Machined Parts
Tumbling, polishing, lacquer, nickel and chrome on machined brass. What each costs in money and calendar days, and why plating raises the machining spec.
- Process
Sep 21, 2026Brass Machining Tolerances and Surface Finish Specs
What brass holds routinely, what costs extra and why a tolerance on every dimension is the most expensive habit on a drawing. With sensible default blocks.
- Cost
Sep 21, 2026Forging or Machining a Brass Part: The Volume Break
Hot forged brass uses a fraction of the metal and needs a die. Where the crossover sits, which alloys forge and what changes on the drawing when it does.
- Compliance
Sep 21, 2026Material Certificates for Brass Parts: EN 10204 3.1
2.1, 2.2, 3.1 and 3.2 explained in plain terms, what a mill certificate does and does not prove, and how to ask for one without paying for the wrong thing.
- Cost
Sep 21, 2026Why Brass Prices Move: Copper, Scrap and Your Quote
Brass is mostly copper bought by weight, so the bar price moves weekly. How quotes are built around that and four ways buyers take the volatility out.