CuZn40 Brass (C28000 Muntz Metal) Sheet Metal Parts and Stamped Components
Rate: US$ 16.40/Kg
Price: US$ 16.40/Kg
Cable Glands India manufactures C28000 brass stamped parts products to customer drawings for electrical OEMs, EPC contractors, power utilities and industrial distributors. The range includes hardware plates, mounting straps, punched brackets, cover panels and formed lock components, supplied as flat blanks, formed parts or components with agreed finishing operations. Manufacturing is based in Jamnagar, Gujarat, India, with enquiries supported across India, Europe, the Middle East, Africa and North America. Orders are defined by alloy, strip condition, component geometry and inspection requirements. The listed price is US$16.40/Kg; the quotation establishes the weight basis, tooling and delivery scope.
Grade identification: CuZn40/CW509L and C28000 are established comparison designations for 60/40 Muntz metal. Their permitted composition limits and delivery requirements must still be checked against the ordered sheet or strip standard.
Product family: Brass Stamping, Brass Stamped Parts and Brass Stamped Components.
Detailed product overview
CuZn40 and the Muntz metal material family
CuZn40 brass sheet metal parts are associated with the 60/40 copper-zinc family commonly called Muntz metal. C28000 and CW509L provide established international comparison points, but the full sheet specification controls acceptance. Compared with lower-zinc cold-forming brasses, this material needs closer attention when a component has tight bends or demanding draws. The choice should follow the geometry and ordered temper rather than the apparent similarity of yellow brass stock. For purchasing, identify whether the requirement is UNS C28000, EN CuZn40/CW509L or an approved dual-certified supply. Record permissible residual elements as well as the nominal copper-zinc ratio.
Hardware plates and industrial mounting straps
Punched hardware plates, mounting straps, fixing brackets and folded support pieces are practical enquiry forms for CuZn40 stampings. Their usefulness depends on achieving the specified shape without unacceptable cracking or distortion. Flat blanking and moderate forming are different manufacturing problems from a deep drawn shell. A plate with a long flange may need a different temper or forming sequence from a compact mounting strap. Show the hole pattern, load direction and mating assembly on the drawing. Where a fastener clamps the part, identify the bearing area and any requirement to prevent rotation, edge damage or local indentation during installation.
Architectural fittings and visible sheet components
Muntz metal is also encountered in architectural panels, decorative hardware, lock components and visible sheet fittings. For these parts, surface appearance and dimensional fit are both acceptance criteria. Rolling marks, handling scratches, polishing direction and the final protective finish should be agreed before manufacture. A sample finish can establish an appearance reference, but it does not replace alloy certification. Larger panels may require careful support during piercing and packaging to avoid permanent distortion. Describe the expected indoor or outdoor environment and cleaning method. A uniform starting colour does not guarantee that separate installations will weather identically over their service life.
Electrical equipment brackets and enclosure hardware
Electrical OEMs and power equipment suppliers can specify C28000 for suitable mechanical hardware within an assembly. Examples include support plates, spacer brackets, panel retainers and covers whose main duty is positioning or protection. Current-carrying members need an independent assessment of conductivity, contact resistance and temperature rise. Do not transfer a copper terminal rating to a Muntz metal stamping merely because the outline is identical. In switchgear or control equipment, clearance distances and sharp-edge control may influence the profile more than tensile strength. State whether a part supports an insulator, contacts a live component or remains electrically isolated.
Formed locks, trim pieces and secondary operations
Lock plates, trimmed covers, embossed identifiers and formed fittings may combine stamping with drilling, tapping, polishing or a specified coating. Secondary machining can be useful where a critical hole or contact feature needs a finish that the press operation cannot provide alone. The drawing should separate punched dimensions from features finished after forming. Any joining operation needs a qualified process and a review of distortion or local softening. Production planning should also protect decorative faces during subsequent handling. A complete enquiry therefore describes the finished component and inspection requirements rather than only asking for a quantity of cut CuZn40 blanks.
Drawing review, nesting and tooling economics
A production drawing should identify the material, revision, datums, burr direction and features that control assembly. Flat-pattern development then considers rolling direction, bend allowance and the position of each part within the strip. Efficient nesting can reduce material consumption, but it must leave enough carrier strength for stable feeding. Prototype blanks may establish fit before a production die is justified. The quotation should separate tooling from recurring component operations and identify responsibility for tool maintenance. This allows buyers to compare costs at the same annual volume instead of comparing a prototype route with a progressive production route.
Key features
- Specified alloy and strip condition with traceability
- Flat, pierced, bent and shallow drawn component options
- Tooling reviewed against geometry and recurring quantity
- Burr direction and functional surfaces defined on the drawing
- Finishing and secondary operations agreed for the application
- Inspection and packing matched to OEM and distributor requirements
Strip temper and grain direction
Specify temper against the relevant product standard and the finished component duty. Bend direction relative to rolling can affect cracking and springback, particularly near slots. Trial parts should use the intended thickness and grain condition. Record any intermediate annealing because it changes material properties. Apply final hardness and strength requirements after all operations that can influence them, including forming, joining and any thermal treatment.
Burr control and pierced-edge quality
Punch condition, clearance, thickness and support influence pierced-edge quality. Specify maximum burr height where it matters and identify the face contacting an insulator, seal or plated member. Deburring should remove interfering edges without rounding locating features. Inspection should include small apertures and narrow bridges because these can reveal tool wear before the outside profile changes. Define cosmetic and functional edge requirements separately.
Bend accuracy and springback management
Specify bend angle, inside radius and flange position with an agreed measurement method. Springback depends on strip condition and deformation, so a tool angle does not directly define the finished angle. Several bends may require staged forming to control twist. Functional gauges can help verify installed fit. Identify whether dimensions apply in the free state or under a defined fixture load.
Plating, cleanliness and contact surfaces
Specify coating thickness, adhesion, coverage and masking for the component’s duty. Electrical contacts and decorative surfaces require different acceptance criteria. Cleaning must remove residues that interfere with adhesion or joining. Protective packaging should preserve the finish through transport and storage. Where regulatory declarations or coating tests are mandatory, include them in the order so that the finishing route and evidence are agreed.
Traceability, inspection and packing
Traceability connects the received material to production, inspection and dispatch. Agree sampling and measurement frequency against a numbered drawing. Functional tests should identify the mating component and pass criteria. Packing must prevent bent tabs, nesting damage and surface scratches. Labels can carry alloy, part number, revision and quantity, helping OEM stores teams and distributors reconcile deliveries and maintain repeat-order identification.
Technical specifications
| Parameter | Supply requirement |
|---|---|
| Brand | Cable Glands India |
| Material | CuZn40 / CW509L / UNS C28000 Muntz metal, specification-dependent |
| Manufacturing location | Jamnagar, Gujarat, India |
| Category | Pressed Parts > Brass Stamping |
| Stock form | Sheet or coil strip; thickness and width by approved specification |
| Part dimensions | Drawing-specific; feasibility reviewed before quotation |
| Temper and hardness | Defined by alloy, product standard and forming duty |
| Tolerance and flatness | Critical dimensions and measurement conditions agreed |
| Finish | Deburred, cleaned or specified coating; acceptance criteria required |
| Price | US$ 16.40/Kg |
Chemical composition reference limits
| UNS grade | Copper % | Lead % max. | Iron % max. | Zinc |
|---|---|---|---|---|
| C28000 | 59.0–63.0 | ≤0.09 | ≤0.07 | Remainder |
Values are mass percentages from UNS registration data. Apply the governing product standard, residual-element limits and analytical rules. Copper may include silver under the applicable designation. These limits are not a certificate for a supplied batch.
Physical properties
| Property | Typical reference value |
|---|---|
| Reference material | KME CuZn40 / CW509L rolled brass |
| Density | 8.41 g/cm³ |
| Electrical conductivity | 15 MS/m; approximately 25.9% IACS |
| Thermal conductivity | 117 W/(m·K) |
| Elastic modulus | 102 GPa |
| Specific heat | 0.375 J/(g·K) |
| Thermal expansion | 21.0 × 10⁻⁶/K, 20–300°C |
Supplier reference values apply to the stated material and condition. Do not transfer them to other grades or tempers without confirmation.
Mechanical properties and strip temper
CuZn40/CW509L supplier examples are shown below to illustrate the trade-off between strength and ductility. They apply to the cited supplier data and product condition, not automatically to every UNS grade on this page.
| Temper | Tensile strength MPa | Elongation A50 minimum % | Hardness HV, indicative |
|---|---|---|---|
| R340 | 340–420 | 33 | 85–115 |
| R400 | 400–480 | 15 | 110–140 |
| R470 | ≥470 | 6 | ≥140 |
Hardness is informative. Confirm thickness, test direction and acceptance values with the supplier.
Raw material grades for comparison
| Grade family | Purchasing consideration |
|---|---|
| C26000 / CuZn30 | Cartridge brass comparison for forming-intensive components |
| C27000 / CuZn36 | Cold-forming brass route for appropriate stamped hardware |
| C27200 / CuZn37 | Yellow brass strip for specified formed and pierced parts |
| C27400 | Separate 63% yellow brass specification; verify availability in ordered form |
| C28000 / CuZn40 | Muntz metal route; review forming severity and temper |
International equivalent and related grades
| Region or system | Designation | How to use the comparison |
|---|---|---|
| USA | UNS C28000; Muntz metal | Sheet/strip grade included in ASTM B36/B36M |
| Europe / EN | CuZn40 / CW509L | Common material-family comparison |
| Germany, legacy DIN | CuZn40 / 2.0360 | Historical rolled-product reference |
| UK, legacy BS | CZ109 | Related 60/40 brass designation |
| Japan / JIS | C2801 | Sheet-family comparison; verify product standard |
| China / GB trade references | H60 / H62 | Related copper-zinc families, not automatic equivalents |
| India / IS | IS 410 brass sheet, strip and foil | Grade and delivery condition must be specified |
| Other national systems / ISO | CuZn40 with full product standard | Local chemistry and residual limits require review |
Product types and variants
| Product form | Drawing details to provide |
|---|---|
| Flat blanks and shims | Profile, thickness, burr direction and stack requirement |
| Pierced washers and plates | Hole pattern, ligament width, flatness and bearing face |
| Bent brackets and clips | Inside radius, angle, rolling direction and free-state shape |
| Shallow drawn covers | Draw depth, corner geometry, flange and surface criteria |
| Embossed or coined parts | Feature height, local thickness and marking legibility |
| Finished assemblies | Secondary operations, joining, coating and packaging |
Applications in industry
| Customer or sector | Typical parts for enquiry | Main engineering check |
|---|---|---|
| Electrical OEMs | Terminal supports, connector plates, switchgear brackets | Contact duty, clearances and installed fit |
| EPC contractors | Panel hardware, fixing plates, identification tags | Approved drawings and project documentation |
| Power utilities | Equipment retainers, replacement plates, auxiliary hardware | Original specification and maintenance interchangeability |
| Distributors | Grade-identified washers, shims, clips and stamped fittings | Part-number control and repeat-batch consistency |
| Instrumentation and appliances | Bezels, covers, brackets and embossed plates | Surface quality, assembly fit and forming limits |
| Hardware and architectural suppliers | Lock plates, trim, nameplates and mounting straps | Finish reference, mounting details and service environment |
Manufacturing process
The manufacturing sequence begins with drawing and material review, followed by a decision on prototype, compound-die or progressive-die production. Incoming sheet or strip is checked against the order for identity, thickness and condition. Tool development establishes the blank, carrier, pilot positions and forming sequence. Trial production then evaluates the actual component, including the effects of accumulated bends and secondary finishing. Inspection requirements should be resolved before the production run so that sampling and gauges match the customer’s functional priorities.
| Stage | Control or operation |
|---|---|
| 1. Material receipt | Check certificate, thickness, temper and surface condition |
| 2. Strip preparation | Slit or select width, straighten and establish feed direction |
| 3. Blanking and piercing | Produce outlines, holes and slots with controlled burr direction |
| 4. Forming and embossing | Create bends, ribs, lanced tabs or shallow draws as qualified |
| 5. Secondary work | Deburr, drill, tap, join or finish where specified |
| 6. Inspection and dispatch | Verify critical features, identify lots and protect parts in packing |
Quality standards and certification requirements
| Reference or evidence | Application |
|---|---|
| ASTM B36/B36M | Brass plate, sheet, strip and rolled bar; lists C27200 and C28000. Do not assume C27000 or C27400 is covered. |
| EN 1652 | Copper and copper-alloy plate, sheet, strip and circles for general purposes; specify alloy and condition. |
| EN 1654 | Consider for spring and connector strip when applicable to the ordered product. |
| JIS H 3100 / IS 410 | Regional sheet and strip specifications; agree exact grade, edition and acceptance requirements. |
| EN 10204 inspection documents | Specify the required document type and supporting material records. |
| ISO 9001 / customer quality requirements | Request current certification and scope where mandatory; no unsupported certification claim is implied. |
| Drawing-specific testing | Agree chemical, dimensional, hardness, coating and functional tests before manufacture. |
Standards identify requirements; they do not establish that a manufacturer holds a particular certificate. Request current documents and applicable scope when certification is mandatory. Agree customer-specific approvals, material declarations and any restricted-substance evidence before order placement.
Why choose Cable Glands India
Cable Glands India provides a single enquiry route for brass material selection, stamping and agreed finishing requirements. Buyers can discuss the drawing, production quantity, critical dimensions and inspection documents together, allowing the quotation to reflect the complete component. The focus is on a clearly identified alloy and a repeatable supply condition for OEM assembly, project purchasing and distributor replenishment. Manufacturing enquiries are handled from Jamnagar with support for Indian and export markets.
Frequently asked questions
What does this product range include?
The range covers hardware plates, mounting straps, punched brackets, cover panels and formed lock components. Components are produced from specified brass sheet or strip using an agreed sequence of blanking, piercing and forming. Secondary work and finishing can be included in the quotation. Provide a drawing so the supply condition and inspection requirements can be matched to the actual part.
Are the international grades directly interchangeable?
CuZn40/CW509L and C28000 are established comparison designations for 60/40 Muntz metal. Their permitted composition limits and delivery requirements must still be checked against the ordered sheet or strip standard. A comparison table is a purchasing aid; the material certificate and governing product standard determine acceptance.
Which material condition should be ordered?
Select temper against both the forming sequence and finished duty. Soft material may support a more demanding draw, while harder strip can offer greater resistance to permanent deformation. Thickness, grain direction and bend geometry also matter. State the standard designation and required test values rather than relying only on a commercial temper label.
Can these parts carry electrical current?
Some stampings can form part of a current path, but the finished assembly needs an electrical design assessment. Section area, contact pressure, plating, temperature and mating materials influence performance. Neither alloy identity nor a nominal conductivity value establishes an ampere rating. Provide the operating requirement and applicable equipment test specification.
What tolerances and thicknesses are available?
Dimensions are reviewed against the drawing and intended manufacturing route. The material supplier controls strip thickness limits, while the tool and forming sequence control many finished features. Specify critical datums and measurement conditions. A first-article report or functional gauge can establish acceptance before recurring production; no universal tolerance is promised for every geometry.
Can stampings be plated or supplied ready to assemble?
The enquiry can include deburring, cleaning, specified coatings, selected secondary machining and packaging suited to assembly. Identify contact faces, cosmetic surfaces, masking areas and coating thickness. Where a customer requires a regulatory declaration or coating test, include it with the request so the finishing route and documentation can be agreed.
What inspection documents should be requested?
Typical requirements include a material certificate, a dimensional report against the approved drawing and any specified hardness or coating results. Agree the inspection document type, sampling frequency and lot identification. Functional testing should describe the fixture or mating assembly and pass criteria. Documentation scope belongs in the purchase order and quotation.
What is the price per kilogram?
The listed price is US$16.40/Kg. Confirm whether the quotation uses finished-part weight and how tooling, secondary operations, testing, packaging, freight and taxes are handled. A drawing and order quantity are needed to establish the commercial scope. The published rate does not state a delivery term or include an unspecified tooling package.
What is needed for a repeat order or replacement part?
Send the approved drawing revision, selected grade and temper, quantity, finishing requirements and delivery destination. For an existing tool, identify any approved changes since the previous run. For a replacement sample, distinguish worn or damaged surfaces from the intended design. Record critical assembly requirements that cannot be recovered reliably from a sample alone.
International product terminology
| Language | Main product term | Related term 1 | Related term 2 | Related term 3 |
|---|---|---|---|---|
| Spanish | C28000 estampación de latón | piezas estampadas | componentes de chapa | arandelas de latón |
| Russian | C28000 штамповка латуни | штампованные детали | детали из листовой латуни | латунные шайбы |
| French | C28000 emboutissage du laiton | pièces estampées | pièces en tôle de laiton | rondelles en laiton |
| Portuguese | C28000 estampagem de latão | peças estampadas | componentes de chapa | arruelas de latão |
| Italian | C28000 stampaggio della lamiera di ottone | parti tranciate | componenti in lamiera | rondelle in ottone |
Linked parts and related products
- C27000 Grade Brass, CW508L (CuZn37) Brass Stamping and Stamped Parts
- C27200–C27400 Yellow Brass 63/37 Stamping and Sheet Metal Parts
- C26000 (Cartridge Brass) Stamping and Stamped Brass Components
- Brass Sheet Metal Pressed Components
- Copper Pressed Parts
- Bronze Pressed parts, Phosphor Bronze pressed parts, Bronze Stamping
- Copper Fuse Clips
Request a quotation
Price: US$ 16.40/Kg. Send your drawing revision, chosen alloy, temper, thickness, annual quantity, order lot size, finish and delivery destination. Identify critical dimensions, burr direction and mandatory inspection documents. For a formed part, include the mating assembly or functional gauge requirement where relevant. The quotation will establish tooling, recurring operations, weight basis, packing and delivery terms.
Contact sales@cableglandsindia.com or +91 22 43449300 to discuss your brass stamping enquiry.