Injection Molding
Tooling and molding for your repeat plastic parts.
Brass Machining for Your Custom Parts
Choose the brass grade around your threaded, formed or forged-body requirement. Define the starting material, critical interfaces and final finish before comparing a manufacturing route.
4 Grade Starting PointsSeparate cutting, forming and forging needs.
Your Final InterfacesSpecify threads, seats and mounting faces.
Lead & End UseDefine the actual market requirement.
Material RecordsMatch evidence to the ordered stock.
Choose Brass Around Your Manufacturing Route
For your brass alloy material selection, distinguish free-cutting rod, formable sheet and forging stock. Similar colour does not approve a change in material or process.
C36000 Free-Cutting Brass — Your Material Review
For your turned adapter, review stock diameter, thread engagement, bore access and the finish on mating shoulders.
| Your reference | What to resolve |
|---|---|
| UNS grade | C36000 |
| European comparison | CuZn36Pb3 / CW603N · qualified |
| Selected chemistry · wt.% | Cu 60–63; Pb 2.5–3.0; Fe ≤0.35; Zn remainder |
| Starting material | Product form, supplied condition and usable allowance. |
| Your acceptance | Working geometry, edges, finish and required records. |
Selected Mueller limits. C36000 is a leaded brass; define actual end-use restrictions and required evidence.
Review C36000 Free-Cutting Brass →
C26000 Cartridge Brass — Your Material Review
For your sheet bracket or cover, start with thickness, rolling direction and supplied temper. Review bend reliefs, accepted edges and the first forming sample.
| Your reference | What to resolve |
|---|---|
| UNS grade | C26000 |
| European comparison | CuZn30 / CW505L · qualified |
| Selected chemistry · wt.% | US reference: Cu 68.5–71.5; Pb ≤0.07; Fe ≤0.05; Zn remainder |
| Starting material | Product form, supplied condition and usable allowance. |
| Your acceptance | Working geometry, edges, finish and required records. |
Selected Aurubis US chemistry. European limits differ; do not merge specifications or treat machining ratings as forming approval.
Review C26000 Cartridge Brass →
C37700 Forging Brass — Your Material Review
For your forged-style valve body, separate blank design, machining allowance, port relationships and finished seats. Confirm actual forging and machining scope with the quotation.
| Your reference | What to resolve |
|---|---|
| UNS grade | C37700 |
| European comparison | CuZn40Pb2 / CW617N · supplier comparison |
| Selected chemistry · wt.% | CDA selected: Cu 58–61; Pb 1.5–2.5; Fe ≤0.30; Zn remainder |
| Starting material | Product form, supplied condition and usable allowance. |
| Your acceptance | Working geometry, edges, finish and required records. |
A comparable European supplier grade can have different chemistry; full drawing and purchasing approval remain necessary.
Review C37700 Forging Brass →
C69300 Silicon Brass — Your Material Review
For your silicon-brass seat housing or fitting, define the exact stock, thermal route, machined interfaces and final receiving requirements.
| Your reference | What to resolve |
|---|---|
| UNS grade | C69300 |
| European comparison | CuZn21Si3P / CW724R · qualified |
| Selected chemistry · wt.% | Cu 73–77; Si 2.7–3.4; P 0.04–0.15; Pb ≤0.09 |
| Starting material | Product form, supplied condition and usable allowance. |
| Your acceptance | Working geometry, edges, finish and required records. |
Selected Mueller limits. A lead-free grade name alone does not certify a finished product, potable application or destination-market compliance.
Review C69300 Silicon Brass →Mueller C36000 ↗ Aurubis C26000 US ↗ CDA C37700 ↗ Mueller C69300 ↗ AW Fraser CW603N ↗ bedra CW617N ↗ Diehl CW724R ↗ Wieland CW505L ↗
Compare Composition and Cutting References Separately
Use the composition interval to identify candidate stock. Use the cutting index as a material reference; it does not establish forming ability, production time or your quote.
Selected Copper Limits · wt.% · scale 0–100
C36000
60–63
C26000
68.5–71.5
C37700
58–61
C69300
73–77
050100
Mueller Relative Machinability · C36000 = 100
050100
C26000 sheet-forming stock is not ranked in this cutting comparison.
Selected composition: Mueller C36000/C69300, Aurubis US C26000, CDA C37700; complete standards and other elements still apply. Cutting: Mueller product references 100/90/85 on a common scale. CDA lists a different C37700 index of 80; reference methods and producers can differ. No averaging or cycle-time ratio is implied. These are published reference data, not your material analysis report.
Resolve Your Brass Part Function
Threaded Connections
Define thread standard, engagement, mating shoulder and bore-exit acceptance before ordering.
Formed Mounting Parts
Specify thickness, temper, bend direction, reliefs and the final mounting relationship.
Fluid-Control Bodies
Separate stock identity, route and finished seats. Pressure, leak and corrosion qualification need agreed test scope.
Connect Your Brass Stock to the Finished Geometry
For your brass machining inquiry, match the process to the actual grade and starting form. Manufacturing operations, tooling and availability are confirmed for your drawing.
CNC Turning
Review bar stock, supported shoulders, thread access and usable material.
Review the Route →
Milling & Port Features
Plan port relationships, flats and machining allowance around final datums.
Review the Route →
Drilling & Tapping
Define internal edges, chip removal and the thread inspection method.
Review the Route →
Forming & Forging Review
Start from the correct sheet or blank route; agree any secondary machining.
Review the Route →Your Brass Finish Changes the Acceptance Review
Illustrative appearances. Agree visible faces, accepted tool marks, coating preparation, thickness, masks and final dimensions. A polished appearance does not establish corrosion, sealing or market compliance.
Surface Finishing →Inspect Your Brass Interfaces and Material Identity
Keep dimensional evidence separate from material identity and any functional test. Agree the final-state acceptance before repeat quantities.
| 3 receiving checks | Your order input |
|---|---|
| 01 · Exact material | Full grade, product specification, supplied form and condition. |
| 02 · Finished features | Threads, seats, port relationships, accepted edges and finish. |
| 03 · Functional scope | Any pressure, leak, corrosion or regulatory test needs an agreed method and limit. |
Specify the brass material certificate scope and lot identification. A grade name or similar European designation does not certify the finished part.
Quality Assurance →
Coordinate Your Drawing and Receiving Requirements
Connect China manufacturing with Dallas-area coordination for drawing review, sample decisions and delivery requirements.
Answers Before You Select Brass
How to choose brass grade for custom parts?
Start with the final function and starting form: free-cutting rod, formable sheet, forging stock or specified silicon brass. Confirm chemistry, condition, finish, accepted edges and receiving evidence.
Can brass grades be substituted?
Do not assume interchangeability. Compare complete chemistry, product standard, supplied condition, manufacturing route and end-use requirements, then obtain drawing-authority approval.
Can C26000 replace free-cutting C36000 rod?
C26000 sheet-forming requirements differ from free-cutting C36000 rod. Review actual stock form, geometry and process; a similar appearance does not approve replacement.
Is C37700 stock the same as a finished forged valve?
No. Material identity does not establish blank design, forging route, machining allowance or final functional acceptance.
Does lead-free brass certify a drinking-water part?
No. Identify the actual product, destination-market limits, required records and any product certification. Material chemistry and finished-product approval are separate questions.
What should your brass machining quote include?
Provide CAD and controlled drawing, exact grade, stock form and condition, quantities, threads and seats, finish allowance, accepted edges and required evidence.
Why should coating thickness be reviewed before machining?
Coating and preparation can affect final fit, threads, masked contacts and visible surfaces. Agree dimensions and acceptance in the finished state.
What must be checked for a brass material certificate?
Agree the document type, full material designation, product specification, lot identity and relevant composition or condition evidence with the order.
6 Inputs for Your Brass Quote
01CAD + controlled drawing
02Exact grade + product specification
03Starting form + supplied condition
04Trial + repeat quantities
05Threads + seats + final finish
06Inspection + material records + delivery
Compare the Same Material and Final State
Your quote should include the accepted stock route, usable allowance, final interfaces and receiving requirements.
