CW603N CuZn36Pb3 Brass Machined Parts
Brass Parts India offers cw603n cuzn36pb3 brass machined parts for drawing-based industrial manufacture and supply from Jamnagar, India. The range serves electrical OEMs, EPC contractors, power utilities and distributors sourcing precision bushings, connector pins, threaded inserts, spacers and custom fittings. Specify CW603N / CuZn36Pb3, the applicable raw-material standard, finished dimensions, quantity and inspection requirements for an engineering review and quotation.
Price: US$ 13.90/kg
Request an order-specific quotation confirming the weight basis, tooling, finishing, delivery and applicable charges.

Product overview
CW603N free-machining brass components
CW603N, designated CuZn36Pb3, is a leaded free-machining brass used for precision components where a drawing may also require limited secondary forming. Brass Parts India accepts enquiries for sleeves, pins, collars, terminal bodies and custom machined parts in this material family. The required material condition is particularly important when a part will be crimped, bent or otherwise deformed after machining. A sample with acceptable dimensions does not establish that every temper of the same alloy will behave identically during subsequent assembly.
Material condition and secondary forming
Compared with CW614N, CW603N can offer improved cold-working behaviour under suitable material conditions. This is a selection consideration rather than a guarantee that any thin wall or crimp feature can be formed without cracking. Wall thickness, local strain, tool radius and prior work hardening affect the result. Specify the intended secondary operation at quotation stage. Where a design requires deformation after turning, representative trials should confirm the forming window and acceptance criteria before a recurring production schedule is established.
Machined sleeves and terminal details
A CW603N sleeve can combine a central bore, external step and seating face in a compact component. Terminal details may add cross holes, slots or screw interfaces. These features should be dimensioned from functional datums so that assembly fit is clear. If a thin section will be deformed, its thickness and surface condition require particular attention. Burrs or tool marks at a highly strained edge may influence performance. Define edge treatment and any inspection of the formed condition in the purchase documentation.
CuZn36Pb3 and international cross-references
C36000 and the legacy CZ124 designation are commonly associated with the CW603N comparison family. However, chemical limits can differ across standards, revisions and supplier-specific restricted compositions. The same trade description is not sufficient evidence for dual certification. Procurement should request the exact required material designation and review the mill documentation against that requirement. If a buyer needs a part to satisfy both a European and an American specification, identify both documents explicitly and confirm the proposed material complies with their combined requirements.
Electrical and instrument component design
CW603N machined contacts and terminal bodies may be relevant to electrical or instrumentation assemblies with fastening, locating or conductor-interface functions. Conductivity, contact pressure and heat dissipation should be assessed at assembly level. A brass part selected for machinability may need a larger conducting section than a copper part for the same duty. Coating requirements should name the finish, thickness and acceptance method. Equipment approvals remain separate from the material designation and must be established for the final design where applicable.
Corrosion environment and service boundaries
CW603N should not be assumed to be a dezincification-resistant brass. The actual service environment, including moisture, temperature and chemical exposure, must be considered when selecting the material. Residual stress and aggressive surroundings can also influence cracking risk in brass components. If corrosion resistance or a regulated end use controls the design, state that requirement before material selection. The appropriate response may involve a different alloy, a revised design or specific testing; substituting a familiar machining grade without review is not an adequate solution.
Key features
- Custom component geometry based on controlled drawings and specifications.
- Material selection identified by grade, product standard and required condition.
- Turning, drilling, threading and secondary features reviewed for the part.
- Natural brass, electro-tinned or nickel finish options by agreement.
- Metric and imperial thread requirements supported by complete callouts.
- Inspection scope and repeat-order identification agreed before manufacture.
Drawing-controlled dimensions
Turned diameters, bores, shoulders and seating faces can be specified around the functional requirements of the assembly. Identify the datum from which each critical feature is measured, then define the fit or geometric control needed at the mating interface. Tolerances should be realistic for the part length, wall thickness and finishing route. Agree which dimensions are checked on every batch and which require additional sampling. This creates an inspection plan that supports assembly performance without treating every decorative or clearance surface as equally critical.
Internal and external thread options
Threaded brass components can be specified with metric or imperial threads to suit existing equipment. The parent product range lists ISO metric, BSW, BA, BSF, UNC, UNF and UNEF options. Each order should name the thread standard, pitch, tolerance class, engagement and any required relief. For plated parts, state whether gauging applies after coating. Blind holes also need a usable thread depth and drill-depth limit. A complete thread callout prevents confusion between nominal thread length and the portion that can carry the mating fastener.
Machined surface finish and edge control
Surface roughness should be stated where it affects sealing, sliding, contact or appearance. A smooth-looking surface is not a measurement, and a general finish note may not identify the critical location. Chamfers and radii help assembly but must not remove necessary thread engagement or sealing area. Cross holes, slots and internal intersections deserve specific burr checks. Define acceptable edge treatment on the drawing so that deburring removes loose material while preserving the designed geometry, especially around small contact pins and thin machined sleeves.
Natural brass, tin and nickel finishes
The finish families on the parent range include natural brass, electro-tinned and nickel surfaces. Select a coating for its intended function and compatibility with the mating material. Specify coating thickness, areas to be masked, appearance criteria and any adhesion or corrosion test required by the equipment specification. Coatings alter dimensions and may affect thread fit, solderability or electrical contact behaviour. Approve the finished condition using representative samples, rather than assuming that an uncoated dimensional report proves conformity of the plated production part.
Part identification and repeat-order control
Stable repeat supply starts with a consistent part number and drawing revision. Include the ordered material, approved finish, batch quantity and packaging requirements on the purchase order. If marking the component is impractical, agree an appropriate label and batch identification method. Keep similar variants separated, particularly when they differ only in bore size, thread pitch or plating. For distributors, a clear stock description should distinguish the alloy from the component type. This reduces the chance that visually similar hardware is issued against the wrong customer specification.
Technical specifications
| Parameter | Specification / ordering requirement |
|---|---|
| Product material | CW603N / CuZn36Pb3 |
| Raw-material specification | EN 12164 free-machining rod, as ordered |
| Manufacturing route | Bar turning with drilling, boring, threading and secondary machining as required |
| Size envelope | Parent range lists 1 mm to 200 mm; feasibility for this grade and geometry is confirmed at quotation |
| Tolerance and roughness | Drawing-specific; identify final dimensions after plating |
| Threads | ISO metric, BSW, BA, BSF, UNC, UNF, UNEF; standard and class as ordered |
| Finish | Natural brass, electro-tinned or nickel; thickness and acceptance by agreement |
| Mechanical properties | Dependent on stock size, temper and specification; confirm with material documentation |
| Quantity and lead time | Confirmed for the drawing, stock availability and batch size |
| Listed rate | US$ 13.90/kg |
Raw-material grade selection
The following families cover common machining and forging enquiries. They are selection references, not a claim that one alloy can replace another. Nominal chemical symbols describe alloy families; the ordered standard and material certificate establish the accepted composition limits. Restricted supplier compositions and older standard editions may use different limits. Do not infer a batch analysis from the nominal symbol.
| Grade family | Nominal / commercial reference | Primary selection consideration |
|---|---|---|
| CZ121Pb3 / CW614N | CuZn39Pb3 | Free machining of turned components; distinguish any Pb4 requirement |
| C36000 / CW603N | CuZn36Pb3 comparison family | Machined pins, sleeves and screw-machine components; compare standard limits |
| C37700 / CW612N | CuZn39Pb2 comparison family | Hot-formed blanks requiring subsequent machining |
| CW617N | CuZn40Pb2 | Related forging-brass option requiring design and specification approval |
| Lead-free or DZR brass | Specific grade must be separately nominated | Alternative selection where lead limits or dezincification resistance control the application |
International equivalents and comparison terms
| European reference | Legacy British reference | Common UNS comparison | Acceptance note |
|---|---|---|---|
| CW614N / CuZn39Pb3 | CZ121Pb3 | C38500 | Compare chemistry, temper and product form |
| CW603N / CuZn36Pb3 | CZ124 | C36000 | Related machining family; not automatic dual certification |
| CW612N / CuZn39Pb2 | CZ128 | C37700 | Related forging family; verify the ordered standard |
| CW617N / CuZn40Pb2 | CZ122 | No direct substitute asserted here | Different forging alloy; requires approval |
Product types and variants
| Component type | Typical design features | Define on the drawing |
|---|---|---|
| Bushings and sleeves | Plain bore, shoulder, flange or recess | Fit, bore alignment, wall thickness and edge breaks |
| Pins and terminals | Stepped diameters, contact faces or cross holes | Mating geometry, conductor interface and final finish |
| Inserts and standoffs | Internal thread, knurl, groove or external thread | Host material, installation route and retention requirement |
| Adapters and connectors | Wrench flats, bore, thread or sealing face | Thread standard, engagement and sealing method |
| Custom bodies | Offset holes, bosses, slots or mounting surfaces | Datum scheme, machining allowance and inspection plan |

Applications in industry
| Customer / sector | Typical component enquiries | Engineering requirement |
|---|---|---|
| Electrical OEMs | Pins, terminal screws, sleeves and connector bodies | Contact geometry, temperature rise and assembly validation |
| EPC contractors | Panel spacers, fastening details and specified connection parts | Approved project drawing and destination requirements |
| Power utilities | Equipment repair parts, terminals and mounting components | Approved material and equipment-level qualification |
| Industrial distributors | Repeat turned parts, inserts, adapters and custom hardware | Part identification, packaging and controlled substitutions |
| Instrumentation and machinery | Bushings, collars, precision spacers and threaded interfaces | Fit, alignment, service environment and wear assessment |
Application names indicate where enquiries arise; they do not establish a rating for every part in the range. Define installation loads, operating temperature, corrosion exposure and maintenance needs. Where a component enters regulated equipment, specify the relevant approval and testing requirements before design release. For replacement supply, verify the original drawing and equipment requirements rather than selecting solely by the appearance of a sample.
Manufacturing process
1. Drawing review and stock selection
Manufacture begins by reviewing the drawing revision, material standard, dimensions, finish and order quantity. The review identifies critical datums, thread requirements and inspection records. Stock form and condition are selected for the approved production route. For a forged component, the blank design additionally needs draft, radii, parting-line placement and machining allowance. Any material substitution should be resolved before stock is released to production.
2. Forming and precision machining
Turning produces the principal diameters, shoulders and faces from suitable stock. Drilling, boring and threading create internal features, and secondary operations add flats, cross holes or slots. The sequence is chosen to maintain the relationship between functional surfaces. Slender sections, deep holes and interrupted cuts need appropriate support and tooling. Process settings are established for the actual part rather than copied from a generic alloy description.
3. Finishing, inspection and packing
Deburring and cleaning remove loose edges and machining residue before final inspection or the agreed surface treatment. When plating is required, final dimensions and thread fit should be verified in the finished condition. The inspection scope follows the order requirements. Packaging then protects surfaces and maintains part identification through dispatch, receiving inspection and storage. Special cleanliness or individually separated packing should be stated at enquiry stage.
Quality standards and certifications
Brass Parts India describes material inspection, manufacturing checks, testing and final inspection in its quality policy. For this product, acceptance should be based on the ordered raw-material standard, approved drawing and agreed inspection plan. References to ASTM, EN or legacy BS specifications describe requirements to be specified; they are not claims of third-party product certification.
| Document / check | What to request |
|---|---|
| Material certificate | Grade, material standard, batch identity and relevant test results |
| Dimensional report | Critical drawing features and measurement results |
| Thread inspection | Applicable standard, tolerance class and agreed gauges |
| Finish evidence | Coating specification and agreed checks, where ordered |
| Management or product certification | Request the current certificate and confirm its scope when your supplier approval requires it |
Do not infer ISO 9001, UL, CE, drinking-water approval or a universal compliance status from this page. Certification and regulatory requirements are application-specific and should be confirmed with current documentation for the order. These leaded grades are not lead-free alloys. If restrictions apply to the destination or finished equipment, include them in the enquiry so material selection and compliance evidence can be reviewed.
Why choose Brass Parts India
Brass Parts India provides a focused source for custom brass and copper component enquiries from Jamnagar, India. Its turned-parts range includes drawing-based manufacture, multiple thread families and natural or plated finishes. Buyers can discuss the required component geometry together with related turned and pressed parts in the same product category. This is useful when one assembly contains several small components with different manufacturing routes.
The practical basis for supplier selection is a clear quotation, an agreed drawing and appropriate evidence of conformity. Send the functional requirements early so material, finish and inspection can be coordinated. For an OEM programme, identify expected repeat quantities and approval samples. For project procurement, include destination and delivery milestones. For distribution, specify stock labels and packaging. The quotation should state the confirmed supply scope and any unresolved technical points before the order is placed.
Frequently asked questions
Can CW603N be crimped after machining?
It may be suitable for limited forming in an appropriate condition. Temper, wall thickness, local strain and forming-tool geometry must be considered. Confirm the operation with representative trials; the alloy designation alone does not guarantee a crack-free crimp for every component.
What information is needed for a quotation?
Send a dimensioned drawing, material standard, quantity, finish and delivery destination. Include the drawing revision, critical tolerances, required inspection documents and intended application. If only a sample is available, identify which characteristics must be reverse-engineered and which material requirements are already known.
Is the listed rate per part or per kilogram?
The displayed rate is US$ 13.90/kg. A kilogram rate is different from a unit price. Provide the finished-part weight and order quantity so the quotation can state the applicable weight basis, tooling, finishing, packing, freight and taxes clearly before purchase.
Can I order a custom thread or non-standard geometry?
Submit the complete thread callout and component drawing for review. Custom shoulders, slots, cross holes, knurls and bores need dimensional and inspection requirements. Manufacturing feasibility depends on the geometry, stock form and quantity; acceptance is confirmed in the quotation.
Are international equivalents automatically interchangeable?
No. A cross-reference is a starting point for material review. Compare the ordered standards, composition limits, temper, product form and mechanical properties. A substitute should be accepted in writing before production, especially when the part belongs to a controlled OEM design.
Can these parts be used in electrical equipment?
They can be considered for suitable electrical component designs. Current rating, temperature rise, conductor retention, contact resistance and insulation clearances are properties of the complete assembly. The equipment designer must establish those requirements and validate the finished configuration where necessary.
Are these alloys lead-free or automatically compliant?
These are leaded brass families. Do not describe them as lead-free. Regulatory conformity depends on the application, destination, applicable rules and any valid exemption. Request current material and compliance documentation for the specific order; a generic alloy designation is not a compliance certificate.
What tolerances and surface roughness are available?
Dimensions and roughness are agreed against the drawing after manufacturing review. There is no universal tolerance or finish applicable to every component in this range. Identify functional surfaces and final dimensions after plating so inspection measures the condition the assembly actually requires.
Can inspection reports or material certificates be supplied?
Specify the required records at enquiry stage, including material certification, dimensional reports and any special tests. The quotation should confirm the agreed scope and document format. A raw-material certificate and a finished-part inspection report cover different aspects of conformity.
How do I arrange repeat orders?
Quote the approved part number, drawing revision, material, finish and previous order reference. State the next batch quantity and delivery requirement. Any design, material or finish change should be reviewed before release so the next batch remains compatible with the approved assembly.
Equivalent product terms in other languages
Use these purchasing terms with the grade CW603N. They translate component descriptions, not material specifications.
| Language | Related product terms |
|---|---|
| Spanish | piezas torneadas de latón; componentes de latón mecanizados; casquillos de latón |
| Russian | токарные детали из латуни; механически обработанные латунные детали; латунные втулки |
| French | pièces décolletées en laiton; composants en laiton usinés; douilles en laiton |
| Portuguese | peças torneadas de latão; componentes de latão usinados; buchas de latão |
| Italian | particolari torniti in ottone; componenti in ottone lavorati; boccole in ottone |
Linked parts and related terms
Explore existing products in the same turned-and-pressed-parts category when preparing an assembly enquiry:
- Brass turned components and precision turned parts
- Brass screw machine parts and threaded components
- Brass pressed parts
- Brass and copper pressings
- Brass washers and copper washers
- Washers and pressed components
Request a CW603N component quotation
US$ 13.90/kg
Send your drawing, quantity, required material standard, finish and inspection requirements to Brass Parts India. Include the delivery country and any approved substitute grades. Our enquiry review can then address manufacturing feasibility and the commercial scope for your component.
Request a quote for CW603N parts
Sales: sales@brass-parts-india.com · +91 22 43 44 9300
Plot 10, GIDC Industrial Estate, Shanker Tekri, Udyog Nagar, Jamnagar 361004, India.
Sales enquiries: India and international export markets.