Injection Molding
Tooling and molding for your repeat plastic parts.
From prototype to production, coordinated manufacturing solutions for your custom parts.
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Precision parts for your tight tolerances and complex geometry.
Tooling and molding for your repeat plastic parts.

Metal casting options for your part and production volume.

Cutting, forming and welding for your fabricated parts.

Custom profiles for your section, length and finish requirements.

Finishes for your appearance, corrosion and wear requirements.

Sub-assemblies and final builds for your production program.

Production tooling built around your process and volume.

Prototype parts to check fit, function and design.
DFM, process planning and production support for your project.
Inspection, documentation, inventory and delivery planning for your program.
Choose air- or liquid-cooling components around your thermal and mechanical requirements.

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

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

Components for your electronic systems.
Start with your functional and quality requirements.
Build around your operating environment.
From prototype to production, review material performance, manufacturability and cost for your part.
Review grade, temper and finish for your metal parts.
AluminumStrength, weight and machining›
Stainless SteelCorrosion and finish requirements›
Carbon & Alloy SteelDiscuss grade and heat treatment›
Tool SteelDiscuss tooling and wear needs›
TitaniumReview grade and part geometry›
Copper & Brass & BronzeDiscuss conductivity and machining›Match your polymer to function, process and environment.
ABSReview enclosure and molding needs›
Polycarbonate (PC)Discuss clarity and impact needs›
Nylon (PA)Review moisture and wear conditions›
POM / AcetalReview fit and sliding features›
PEEKDiscuss operating conditions›
PTFEReview friction and chemical exposure›
ULTEM / PEIDiscuss thermal and electrical needs›Confirm grade availability and application requirements.
TPU / TPEReview flexibility and processing›
EPDMReview weathering and chemical exposure.›
NBRReview oil and fuel exposure.›
FKMReview temperature and chemical exposure.›
G10 / FR4Review insulation and laminate needs›
CompositesReview stiffness, weight and laminate.›Customer-Specified MaterialsConfirm your grade and requirements.›Other Specialty MaterialsDiscuss your application and grade.›Practical guidance for your part geometry and material decisions.
Prepare your process, budget and sourcing questions.
Build your knowledge before production.
Learn who we are and how we operate.
Find our U.S. support team or start a conversation.
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.
| Purchasing identifier | Your reference |
|---|---|
| United States | UNS C69300 · wrought silicon brass |
| European comparison | CuZn21Si3P / CW724R · confirm product standard |
| Stock and route | Specify machining stock or forging stock and final supplied condition |
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.
| Selected element | Mueller reference · wt.% |
|---|---|
| Copper | 73.0–77.0 |
| Silicon | 2.7–3.4 |
| Phosphorus | 0.04–0.15 |
| Lead | ≤0.09 |
| Iron | ≤0.10 |
| Zinc | Remainder |
Selected producer limits only; remaining elements and the ordered specification apply. Not a material-lot analysis.
Mueller chemistry · wt.% · common scale 0–3.5
Mueller index · common scale 0–100
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 ↗
Select your valve, fitting, connector or forged-style body, then review its manufacturing and receiving decisions.
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 decision | What to define |
|---|---|
| Your fit | Valve-seat geometry, port axes, mounting pattern and sealing land. |
| Your route | Stock condition, support and finishing sequence. |
| Your approval | Final geometry, surface and receiving evidence. |

For C69300 brass milling, review support beneath the valve body and access to the external mounting pad.
| Your decision | What to define |
|---|---|
| Your fit | Valve-seat geometry, port axes, mounting pattern and sealing land. |
| Your route | Stock condition, support and finishing sequence. |
| Your approval | Final geometry, surface and receiving evidence. |

Confirm machining stock or a separately agreed forging route and supplied condition.
| Your decision | What to define |
|---|---|
| Your fit | Valve-seat geometry, port axes, mounting pattern and sealing land. |
| Your route | Stock condition, support and finishing sequence. |
| Your approval | Final geometry, surface and receiving evidence. |

Inspect final seat and port relationships. Any leak or pressure test needs an agreed procedure.
| Your decision | What to define |
|---|---|
| Your fit | Valve-seat geometry, port axes, mounting pattern and sealing land. |
| Your route | Stock condition, support and finishing sequence. |
| Your approval | Final geometry, surface and receiving evidence. |

For your C69300 brass fittings, define thread system, sealing method and wrench engagement. A similar-looking adapter is not an approved substitute.
| Your decision | What to define |
|---|---|
| Your fit | Thread standard, sealing shoulder, port relationship and wrench access. |
| Your route | Stock condition, support and finishing sequence. |
| Your approval | Final geometry, surface and receiving evidence. |

For C69300 brass turning and C69300 brass threading, agree run-out, chip removal and final gauge access.
| Your decision | What to define |
|---|---|
| Your fit | Thread standard, sealing shoulder, port relationship and wrench access. |
| Your route | Stock condition, support and finishing sequence. |
| Your approval | Final geometry, surface and receiving evidence. |

Specify stock form, supplied condition and coating allowance where needed.
| Your decision | What to define |
|---|---|
| Your fit | Thread standard, sealing shoulder, port relationship and wrench access. |
| Your route | Stock condition, support and finishing sequence. |
| Your approval | Final geometry, surface and receiving evidence. |

Verify final threads, shoulder and locating features; state any functional-test scope.
| Your decision | What to define |
|---|---|
| Your fit | Thread standard, sealing shoulder, port relationship and wrench access. |
| Your route | Stock condition, support and finishing sequence. |
| Your approval | Final geometry, surface and receiving evidence. |

For C69300 brass electrical connectors, define the contact region, prong geometry and mounting relationship. The alloy designation does not establish current capacity or contact resistance.
| Your decision | What to define |
|---|---|
| Your fit | Contact lands, slot width, mounting datums and attachment geometry. |
| Your route | Stock condition, support and finishing sequence. |
| Your approval | Final geometry, surface and receiving evidence. |

For C69300 brass drilling, support the mounting foot and keep hole-exit edges accessible.
| Your decision | What to define |
|---|---|
| Your fit | Contact lands, slot width, mounting datums and attachment geometry. |
| Your route | Stock condition, support and finishing sequence. |
| Your approval | Final geometry, surface and receiving evidence. |

Confirm actual stock identity and condition. Keep conductivity requirements explicit for the assembly.
| Your decision | What to define |
|---|---|
| Your fit | Contact lands, slot width, mounting datums and attachment geometry. |
| Your route | Stock condition, support and finishing sequence. |
| Your approval | Final geometry, surface and receiving evidence. |

Inspect final contact and mounting geometry; electrical qualification requires a separate procedure.
| Your decision | What to define |
|---|---|
| Your fit | Contact lands, slot width, mounting datums and attachment geometry. |
| Your route | Stock condition, support and finishing sequence. |
| Your approval | Final geometry, surface and receiving evidence. |

For your C69300 brass forged parts inquiry, define the near-net blank and the finished port datums. Your quote confirms forging availability, tooling and machining scope.
| Your decision | What to define |
|---|---|
| Your fit | Blank envelope, port relationship, mounting allowance and final datums. |
| Your route | Stock condition, support and finishing sequence. |
| Your approval | Final geometry, surface and receiving evidence. |

For C69300 brass forging machining, agree locating features, clamping and stock allowance before cutting.
| Your decision | What to define |
|---|---|
| Your fit | Blank envelope, port relationship, mounting allowance and final datums. |
| Your route | Stock condition, support and finishing sequence. |
| Your approval | Final geometry, surface and receiving evidence. |

For C69300 brass hot forging, agree the complete thermal route with the material supplier, including final condition and corrosion evidence.
| Your decision | What to define |
|---|---|
| Your fit | Blank envelope, port relationship, mounting allowance and final datums. |
| Your route | Stock condition, support and finishing sequence. |
| Your approval | Final geometry, surface and receiving evidence. |

Inspect final features after the agreed route. Review any required material, corrosion or functional evidence separately.
| Your decision | What to define |
|---|---|
| Your fit | Blank envelope, port relationship, mounting allowance and final datums. |
| Your route | Stock condition, support and finishing sequence. |
| Your approval | Final geometry, surface and receiving evidence. |

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.

Review port shoulders, thread run-out and supported engagement.
Explore the Process →
Plan valve mounting pads and locating faces around your final datums.
Explore the Process →
Support the mounting foot and define internal-edge and gauge access.
Explore the Process →
Verify port, sealing-land and mounting relationships.
Explore the Process →Resolve these six drawing decisions before repeating the manufacturing route.
For C69300 brass CNC machining, define the exact grade, stock form and material-record scope. Agree segregation and identification through cutting, cleaning and delivery.
Show the working feature and allowed edge condition.
Agree stock, support and final surface.
Inspect the actual finished state.

Mark cross ports, thread starts and hidden edges. Agree chip removal, internal-edge acceptance and measurement access before releasing repeat quantities.
Show the working feature and allowed edge condition.
Agree stock, support and final surface.
Inspect the actual finished state.

For C69300 brass dezincification resistance, the final processing route matters. Diehl warns that elevated-temperature processing can impair resistance. Agree the supplier-qualified route and final evidence; do not treat stock data as a finished-part result.
Show the working feature and allowed edge condition.
Agree stock, support and final surface.
Inspect the actual finished state.

Show allowed edge breaks, thread entrances and seats that must retain their geometry. Agree first-sample acceptance for accessible and internal edges.
Show the working feature and allowed edge condition.
Agree stock, support and final surface.
Inspect the actual finished state.

Separate sealing, contact and cosmetic faces. Define roughness, accepted tool marks, cleaning, masking and protection; review any coating allowance against final fit.
Show the working feature and allowed edge condition.
Agree stock, support and final surface.
Inspect the actual finished state.

For your C69300 brass machining tolerances, provide feature-specific limits, datums and measurement access. Your quotation confirms acceptance for the actual finished geometry.
Show the working feature and allowed edge condition.
Agree stock, support and final surface.
Inspect the actual finished state.

| Your comparison | What your drawing must resolve |
|---|---|
| C69300 vs C360 brass | Lead requirement, silicon-bearing chemistry, stock form and the accepted cutting route. |
| C69300 vs C377 brass | Forging route, final thermal state, working features and required material evidence. |
| CuZn21Si3P / CW724R | Qualified European comparison; approve full specification and product form. |
| C69300 brass plumbing parts | State 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 →



Illustrative appearances. Define cleaning, accepted tool marks, masking and contact protection. Any plating needs review of preparation, adhesion, thickness and final function.
Surface Finishing →Grade, product form, temper and lot.
Threads, locating faces and accepted edges.
Final fit, surface and records.
For your custom C69300 brass parts, agree product specification, supplied condition and lot identity. Define your C69300 brass material certificate scope before buying stock.
Sampling and evidence scope are agreed with your quote.
Quality Assurance →
For C69300 brass prototype machining, review seats, port relationships, threads and accepted edges on a complete first sample before repeat quantities.
Sampling and evidence scope are agreed with your quote.
Quality Assurance →
Inspect final sealing lands and mounting datums. Functional tests, corrosion evidence and any product certification require their own agreed procedures and scope.
Sampling and evidence scope are agreed with your quote.
Quality Assurance →
Your C69300 brass parts manufacturer review should define surface protection, individual separation, lot identity and the documents your receiving team needs.
Sampling and evidence scope are agreed with your quote.
Quality Assurance →

Connect China manufacturing with Dallas-area coordination for drawing review, sample decisions and delivery requirements.
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.
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.
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.
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.
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.
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.
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.
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.
NSF · certification scope ↗ EPA · verify product certification marks ↗