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Thermal Technologies

Choose air- or liquid-cooling components around your thermal and mechanical requirements.

Stepped aluminum heat sink with copper contact insert — illustrative concept
Explore Thermal Technologies

Heat Sinks

Liquid Cooling

AI & Data Center Cooling

Manufacturing support for your cold plates, manifolds and cooling assemblies.

Processor cold plates and distribution manifold — illustrative concept
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AI Compute Cooling

Distribution & Assembly

AI Cooling Interfaces
  1. Cold PlateHeat-source interface
  2. ManifoldCoolant distribution
  3. CDU InterfaceConnection requirements
  4. Rack / LoopAssembly integration
Review component fit across your cooling system.

Industry Cooling Solutions

Find components for your power electronics, energy, laser and telecom application.

Machined power module cooling plate — illustrative concept
Explore Industry Cooling

Power Electronics

EV & Energy

Laser & Telecom

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Components for your electronic systems.

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Precision & Advanced Systems

Start with your functional and quality requirements.

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Industrial & Energy

Build around your operating environment.

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Materials

From prototype to production, review material performance, manufacturability and cost for your part.

Engineering Plastics

Match your polymer to function, process and environment.

→
ABS — illustrative material conceptABSReview enclosure and molding needs›Polycarbonate (PC) — illustrative material conceptPolycarbonate (PC)Discuss clarity and impact needs›Nylon (PA) — illustrative material conceptNylon (PA)Review moisture and wear conditions›POM / Acetal — illustrative material conceptPOM / AcetalReview fit and sliding features›PEEK — illustrative material conceptPEEKDiscuss operating conditions›PTFE — illustrative material conceptPTFEReview friction and chemical exposure›ULTEM / PEI — illustrative material conceptULTEM / PEIDiscuss thermal and electrical needs›

Elastomers & Specialty Materials

Confirm grade availability and application requirements.

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Elastomers
Silicone / LSR — illustrative material conceptSilicone / LSRDiscuss flexible component needs›TPU / TPE — illustrative material conceptTPU / TPEReview flexibility and processing›EPDM — illustrative material conceptEPDMReview weathering and chemical exposure.›NBR — illustrative material conceptNBRReview oil and fuel exposure.›FKM — illustrative material conceptFKMReview temperature and chemical exposure.›
Specialty Materials
G10 / FR4 — illustrative material conceptG10 / FR4Review insulation and laminate needs›Composites — illustrative material conceptCompositesReview stiffness, weight and laminate.›Customer-Specified MaterialsConfirm your grade and requirements.›Other Specialty MaterialsDiscuss your application and grade.›
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Prepare your process, budget and sourcing questions.

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Build your knowledge before production.

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About LK MFG

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sales@lkmfg.com (945) 409-1013

1750 Briercroft Ct, Suite 204
Carrollton, TX 75006, USA

Silicon-brass valve, reducer and electrical-terminal concepts — illustrative generated component concept
Illustrative component concept

C69300 Lead-Free Brass Machining for Your Parts

For your C69300 lead free brass machining inquiry, connect valve ports, sealing lands and final fit to the exact stock specification. State your material records and end-use approval needs before comparing the route.

UNS C69300Lead-free silicon brass reference.
≤0.09% PbSelected producer composition limit.
CuZn21Si3PCW724R · qualified comparison.
Ports & RecordsDefine final fit and acceptance.

Know Your Silicon Brass Before Ordering Stock

For lead free silicon brass machining, identify UNS C69300, the stock form and required condition. For your silicon brass C69300 specification, compare the complete ordered requirements rather than relying on a trade name.

Identify Your Ordered Material

Purchasing identifierYour reference
United StatesUNS C69300 · wrought silicon brass
European comparisonCuZn21Si3P / CW724R · confirm product standard
Stock and routeSpecify machining stock or forging stock and final supplied condition

Connect C69300 Brass Properties to Your Route

Mueller lists a relative machinability index of 85 with C36000 at 100. For C69300 brass machinability, review chip control, stock condition and your actual geometry; an index is not a cycle-time or cost ratio. European producer data may use a different reference basis.

C69300 Brass Composition

Selected elementMueller reference · wt.%
Copper73.0–77.0
Silicon2.7–3.4
Phosphorus0.04–0.15
Lead≤0.09
Iron≤0.10
ZincRemainder

Selected producer limits only; remaining elements and the ordered specification apply. Not a material-lot analysis.

Compare Before Substituting Your Brass

Selected Lead Limits and Ranges

Mueller chemistry · wt.% · common scale 0–3.5

C69300
≤0.09
C36000
2.5–3.0
C37700
1.5–2.5
01.753.5

Relative Machinability Reference

Mueller index · common scale 0–100

C69300
85
C36000
100
050100

The lead chart distinguishes a maximum limit from bounded composition ranges. For C69300 brass lead content, ≤0.09% is a selected material limit, not a claim of zero lead or finished-product certification. The relative cutting index does not predict your assembly performance or quote.

Mueller C69300 ↗ Mueller C36000 ↗ Mueller C37700 ↗ Diehl · CW724R comparison ↗

Match Your C69300 Part to the Working Requirement

Select your valve, fitting, connector or forged-style body, then review its manufacturing and receiving decisions.

Start with Your Mating Features

For your C69300 brass valve components, identify the seat, port relationships and mounting datum. Specify any pressure, leak or end-use approval separately from dimensional acceptance.

Your decisionWhat to define
Your fitValve-seat geometry, port axes, mounting pattern and sealing land.
Your routeStock condition, support and finishing sequence.
Your approvalFinal geometry, surface and receiving evidence.
Silicon-brass multiport valve manifold with raised annular seat and mounting base — illustrative generated component concept
Illustrative component concept

From Your C69300 Stock to the Finished Part

For your C69300 brass machining services review, connect cutting, edge removal, finishing and inspection to the same drawing revision. Your quote confirms the accepted operations and receiving scope.

Wet turning of a supported brass reducer shoulder — illustrative generated component concept
Illustrative component concept

C69300 Brass Turning Services

Review port shoulders, thread run-out and supported engagement.

Explore the Process →
Supported wet milling of a brass valve mounting pad — illustrative generated component concept
Illustrative component concept

C69300 Brass Milling Services

Plan valve mounting pads and locating faces around your final datums.

Explore the Process →
Two-flute drilling of a supported brass terminal foot — illustrative generated component concept
Illustrative component concept

Drilling & Thread Access

Support the mounting foot and define internal-edge and gauge access.

Explore the Process →
Dimensional review of a brass valve-port relationship — illustrative generated component concept
Illustrative component concept

Finished-Feature Inspection

Verify port, sealing-land and mounting relationships.

Explore the Process →

Resolve 6 Risks Before Releasing Your C69300 Drawing

Resolve these six drawing decisions before repeating the manufacturing route.

Define Your C69300 Brass Deburring Requirement

Show allowed edge breaks, thread entrances and seats that must retain their geometry. Agree first-sample acceptance for accessible and internal edges.

01 · Requirement

Show the working feature and allowed edge condition.

02 · Route

Agree stock, support and final surface.

03 · Evidence

Inspect the actual finished state.

Confirm stockMachineFinish if specifiedInspect
Thread entrance and sealing-shoulder edges in brass — illustrative generated component concept
Illustrative component concept

Compare Before Changing Your Grade

Your comparisonWhat your drawing must resolve
C69300 vs C360 brassLead requirement, silicon-bearing chemistry, stock form and the accepted cutting route.
C69300 vs C377 brassForging route, final thermal state, working features and required material evidence.
CuZn21Si3P / CW724RQualified European comparison; approve full specification and product form.
C69300 brass plumbing partsState end use, wetted surfaces and exact certification or testing requirements.

A grade name alone does not approve substitution or a finished plumbing product.

C360 Brass → C377 Brass →

Agree Your Finished Working Surface

As-machined brass port-flange surfaces — illustrative generated component concept
Illustrative component concept
As Machined
Clean brass insert seat with accepted machining lines — illustrative generated component concept
Illustrative component concept
Clean Working Land
Selected masking on a brass ported mounting block — illustrative generated component concept
Illustrative component concept
Specified Masking
Brass valve-seat concept in an individual protective pocket — illustrative generated component concept
Illustrative component concept
Protected Delivery

Illustrative appearances. Define cleaning, accepted tool marks, masking and contact protection. Any plating needs review of preparation, adhesion, thickness and final function.

Surface Finishing →

Check Your C69300 Part at 3 Stages

01 · Incoming material

Grade, product form, temper and lot.

02 · First route sample

Threads, locating faces and accepted edges.

03 · Finished part

Final fit, surface and records.

Approve Your Working Features

For C69300 brass prototype machining, review seats, port relationships, threads and accepted edges on a complete first sample before repeat quantities.

  • Material identity, stock form and supplied condition.
  • Controlled working and locating geometry.
  • Agreed surface protection and receiving records.

Sampling and evidence scope are agreed with your quote.

Quality Assurance →
First-sample dimensional check of a brass valve manifold — illustrative generated component concept
Illustrative component concept
LK Dongguan factory exterior — user-supplied photograph
LK Dongguan factory · user-supplied photograph

Coordinate Your Drawing and Receiving Requirements

Connect China manufacturing with Dallas-area coordination for drawing review, sample decisions and delivery requirements.

6 Inputs for Your C69300 Quote

01CAD and controlled drawing
02UNS C36000, stock form and product standard
03Supplied condition and final fit
04Trial and repeat quantities
05Threads, working surfaces and accepted edges
06Material records, inspection and delivery needs

Answers Before You Specify C69300

Is C69300 brass lead free?

C69300 lead free brass is a silicon-brass material designation; the selected Mueller lead limit is ≤0.09 wt.%. Lead-free does not mean zero lead or automatically certify your finished product.

Is C69300 brass NSF 61 certified?

Do not infer certification from the alloy designation. Identify the actual listed material or finished product, manufacturer, certification body and scope. NSF/ANSI/CAN 61 addresses health effects; verify the relevant listing and requirements for your product.

What does C69300 brass NSF 372 mean for my part?

NSF/ANSI/CAN 372 concerns lead content in drinking-water system components. A selected alloy composition limit is not a certificate for your assembled product. State the exact product, wetted surfaces, required listing and evidence.

How should I review C69300 brass RoHS compliance?

Provide the applicable product category, destination market, requested declaration and evidence scope. Review the actual material, finish and complete product requirements; no blanket compliance declaration is made on this page.

How much does C69300 brass machining cost?

Compare the same drawing, stock form, trial and repeat quantities, tooling, setups, finishing and inspection scope. Your C69300 brass machining quote confirms the actual route and commercial terms; no fixed alloy-to-alloy cost ratio is assumed.

What changes after forging or joining?

Review the complete thermal history and final material condition with the stock supplier and responsible processor. Diehl notes that elevated-temperature processing can impair dezincification resistance; agree the qualified route and final evidence.

What should I send for C69300 brass machining services?

Send CAD and a controlled drawing, UNS grade and product standard, supplied condition, trial and repeat quantities, working surfaces and receiving requirements. Include any separate end-use, corrosion or certification scope.

Can the European name replace the UNS specification?

CuZn21Si3P / CW724R is a qualified comparison for C69300. Confirm full chemistry, product standard, stock form and supplied state, and obtain drawing-authority approval before substitution.

Copper, Brass & Bronze → CNC Machining →

NSF · certification scope ↗ EPA · verify product certification marks ↗