Quick check
Brass stampings 0.2 - 3 mm
Dimensionally stable precision for contact and mechanical functions
When components have to be dimensionally accurate, easy to assemble and contactable at the same time, brass is often the most economical material mix of formability, strength and corrosion behavior. Brass stampings 0.2 - 3 mm from Karl Naumann GmbH are designed for process-reliable contours, clean edges and reproducible series - so that your component does not become a source of errors in assembly, contacting or mechanics.
5 million+
Stamped parts annually
Series production at the highest level
Over five million precision parts leave our factory every year - on time, reproducible and in consistently high quality.
Over five million precision parts leave our factory every year - on time, reproducible and in consistently high quality.
- Small & large series
- Call-off delivery
- Just-in-Time
+/- 2µ
Precision tolerances
Optical & tactile 3D measurement
Tightest manufacturing tolerances down to ±2 micrometers - tested during production and fully documented in accordance with DIN EN ISO 9001.
Tightest manufacturing tolerances down to ±2 micrometers - tested during production and fully documented in accordance with DIN EN ISO 9001.
- 3D measurement technology
- ISO 9001
- Documented
3rd
Generation family business
Reliability with a personal handshake
As an owner-managed family business, we personally stand for quality and reliability - short decision-making processes, long-term partnerships.
As an owner-managed family business, we personally stand for quality and reliability - short decision-making processes, long-term partnerships.
- Owner-managed
- Personal advice
- Bear stone
75+
Years of experience
Competence you can feel
Over 75 years of sheet metal and metal processing. National and international customers have relied on our experience and reliability for decades.
Over 75 years of sheet metal and metal processing. National and international customers have relied on our experience and reliability for decades.
- Since 1948
- International
- IATF 16949
Why Karl Naumann GmbH
as a brass stamping parts manufacturer?
as a brass stamping parts manufacturer?
Over 75 years of experience
Over 75 years of experience in the series production of brass stampings in stainless steel and other materials.
State-of-the-art technologies
CNC-controlled presses, AI-based process monitoring and 3D measurement technology
Quality assurance at the highest level
Optical and tactile measuring systems with precision up to ± 0.002 mm
High flexibility
From individual parts to large series - ready-to-assemble standard stamped parts from a single source
Global customer base
Trust from the automotive, electrical and mechanical engineering industries
Efficiency & economy
Cost benefits through automated processes and optimized tool sets
Our
values
Your benefit - when function is more important than material romance
- Material selection based on function instead of gut feeling
Coordination of alloy, hardness and degree of deformation to spring effect, wear and contact behavior.
- Series quality that keeps assembly stable
Tight contours, burr-controlled edges, defined fitting surfaces.
- Scalable production
Pre-series and series production with consistent process logic.
- Industry understanding for contact and precision mechanics
Requirements from electronics, automotive and precision mechanics are taken into account in the design.
Your advantages in the field of brass stampings
at a glance
CAD-based production
for maximum precision and repeat accuracy
Virtual feasibility studies
and tool optimization
Shorter production times
through digital process chains
Cost-optimized series production
thanks to early simulation
Types and
variants
of our brass stampings
Typical application sectors
Brass stampings in the 0.2 - 3 mm range are frequently used inthe electrical industry, switching and connector technology, automotive industry, sensor technology, precision mechanics, watch industry, household appliances, medical technology (non-implantable, device-related), fastening and connection technology, ventilation and air-conditioning technology.
According to punching and tool concept
- Progressive die-cutting for cycle-stable series
- Precision punching for function-critical contours
According to component function
- Contact and connection plates, spring contacts, clamping lugs
- Spacer, guide and retaining elements
- Covering and shielding components (mechanical/EMC-related assemblies)
By geometry
- Flat parts, hole patterns, inner/outer contours
- Assembly features such as snap-in windows, clips, defined insertion chamfers
According to surfaces and additional features
- bright, tin-plated (solder/contact-friendly), nickel-plated (wear/barrier layer), silver-plated (low contact resistance)
- Deburring, edge rounding, defined contact zones, marking/traceability
Materials and material options (brass) - with standards & properties
CuZn37 (CW508L) - EN 1652
Very good cold formability, stamping-friendly, balanced strength level; universal for many stamping geometries.
CuZn30 (CW505L) - EN 1652
Good formability with slightly higher strength; frequently used in contact and mechanical parts.
CuZn39Pb3 (CW614N) - EN 12164 / EN 12165
Better machinability (relevant for combined stamping/chipping processes); limited for forming depending on condition.
CuZn36Pb2As (CW602N) - EN 12164 / EN 12165
Dezincification-resistant (DZR) for humid/corrosive environments; useful for applications close to water or condensate.
Optional according to customer specifications: ASTM equivalents (e.g. depending on specification, also lead-free).
Very good cold formability, stamping-friendly, balanced strength level; universal for many stamping geometries.
CuZn30 (CW505L) - EN 1652
Good formability with slightly higher strength; frequently used in contact and mechanical parts.
CuZn39Pb3 (CW614N) - EN 12164 / EN 12165
Better machinability (relevant for combined stamping/chipping processes); limited for forming depending on condition.
CuZn36Pb2As (CW602N) - EN 12164 / EN 12165
Dezincification-resistant (DZR) for humid/corrosive environments; useful for applications close to water or condensate.
Optional according to customer specifications: ASTM equivalents (e.g. depending on specification, also lead-free).
Technical parameters and production requirements
- Material thickness: 0.2 - 3.0 mm
- Tolerance level: typically ±0.05 to ±0.10 mm (depending on contour and function)
- Edge quality: low-burr to burr-free, optionally contact-optimized edges
- Surfaces: raw or electroplated for contact and corrosion optimization
- Inspections: Dimensional and visual inspection, initial sample, series inspection plan according to characteristics
- Process control: gentle on materials, tool and series-oriented
Standards, compliance and application-related requirements
- Semi-finished product/material: EN 1652 (sheets/strips), EN 12164/12165 (depending on product shape)
- Quality management: ISO 9001
- Substance conformity: RoHS, REACH
- Specifications: Customer drawing standards, test and approval requirements (e.g. contact resistance/layer thickness for coating)
Filterable product overview (brass stampings - variant matrix)
| Product name | Material | Material | Manufacturing | Surface | Function | Authorization |
|---|---|---|---|---|---|---|
| Standard" contact punching part | Brass | CW508L | Follow-up network | blank | Connection/contact | ISO 9001 |
| Spring contact stamped part | Brass | CW505L | Precision punching | tinned | Spring/clamp | RoHS |
| Mechanical/guide punched part | Brass | CW508L | Punching | nickel-plated | Guide/stop | REACH |
| Environment close to DZR | Brass (DZR) | CW602N | Precision punching | blank | close to corrosion | ISO 9001 |
| Combination punching/chipping component | Brass (Pb) | CW614N | Punching | nickel-plated | Function/Hybrid | RoHS |
Quality, process control and traceability
For brass stamped parts, the focus is on contour accuracy, defined edges and a stable surface - especially for contact and clamping applications. Production is carried out with documented test characteristics, material-related batch management and reproducible process logic in order to limit series variation and assembly deviations.
Logistics, packaging and handling
- Packaging: layer-separated, surface-protecting, optionally antistatic (for contact parts)
- Marking: article number, material/batch, batch data; optional 2D code
- Delivery concepts: Call-off and blanket orders, defined delivery windows
- Traceability: can be documented by material and batch
Request - discreet, fast, resilient
So that we can respond quickly and accurately:
Contact details:
Telephone
Address
ST Bärenstein
Müglitztalstraße 6
01773 Altenberg
Müglitztalstraße 6
01773 Altenberg
Business hours
Monday - Thursday: 6:15 a.m. - 4:00 p.m.
Friday: 6:15 a.m. - 2:00 p.m.
Saturday - Sunday: Closed
Friday: 6:15 a.m. - 2:00 p.m.
Saturday - Sunday: Closed
Contact form:
Precise functional parts for fittings and valve construction
This variant is used when good machinability and punchability must be combined with defined dimensional accuracy for sealing and guiding functions. The focus is on clean hole patterns, dimensionally stable contact surfaces and installation-friendly edges for media guides and add-on parts, e.g. in sanitary technology, pneumatics and process fittings.
Technical parameters - Fitting/valve functional parts
Technical parameters - Fitting/valve functional parts
| Parameter | Typical industrial characteristics |
|---|---|
| Brass grades | CW614N, CW617N, CW508L, also lead-free |
| Thickness range | 0,8 - 3,0 mm |
| Dimensional concept | Perforation pattern and plan requirements |
| Edge requirement | Defined deburring on sealing/seating areas |
| Surface condition | bright, barrel-polished, passivated (depending on application) |
| Surroundings | humid/media-related areas, corrosion-resistant design |
Contact and spring sheet metal parts for electrical engineering
Brass is used when a combination of electrical conductivity, spring effect and good formability is required. Typical applications are plug-in and clamping components, contact tongues or shield connections, where reproducible contact forces and contour-accurate functional surfaces are crucial.
Technical parameters - Electrical engineering/spring parts
Technical parameters - Electrical engineering/spring parts
| Parameter | Typical industrial characteristics |
|---|---|
| Brass grades | CW508L, CW505L, CW510L |
| Thickness range | 0.2 - 1.5 mm |
| Functional feature | Defined spring geometry / contact zone |
| Edge status | Low burr or controlled burr side |
| Surface option | tin-plated/nickel-plated/silver-plated (function-related) |
| Fields of application | Terminals, connectors, shielding connections |
Stamped and bent parts for mounting and housing integration
Here, spatial shapes such as tabs, clips or holders are created from the punched blank. The difference to flat blanks lies in the 3D integration: brass enables tight radii and dimensionally stable bending edges, which supports assembly-friendly geometries in devices, assemblies and cover systems.
Technical parameters - stamped and bent parts
Technical parameters - stamped and bent parts
| Parameter | Typical industrial characteristics |
|---|---|
| Brass grades | CW508L, CW505L |
| Thickness range | 0,3 - 2,5 mm |
| Bending design | Radial and direction-dependent (crack prevention) |
| Angular fidelity | Process and tool-dependent |
| Process strategy | Progressive assembly with bending/calibration stages |
| Typical components | Retaining clips, mounting bracket, contact carrier |
Stamped brass parts for detent, stop and positioning functions
With this design, local functional contours are introduced, such as latching lugs, stops, centering points or rigidity embossing. The benefit lies in the functional integration without additional individual parts; the geometry is defined in the tool and generated in a repeatable manner.
Technical parameters - Embossed function variants
Technical parameters - Embossed function variants
| Parameter | Typical industrial characteristics |
|---|---|
| Brass grades | CW508L, CW510L |
| Thickness range | 0,2 - 2,0 mm |
| Embossing elements | Latching points, beads, stops, centering embossing |
| Critical features | Embossing height, position reference, repeat accuracy |
| Surface requirement | Functional area-oriented (contact/impact) |
| Test approach | 3D measurement + height check (feature-related) |
Decorative cover and visible parts (surface focus)
This variant is aimed at visible surfaces where optical quality is important in addition to contour accuracy. Typical applications include bezels, emblems, cover rings or decorative components in appliances, fittings and instruments, often with downstream finishing processes.
Technical parameters - visible/cover parts
Technical parameters - visible/cover parts
| Parameter | Typical industrial characteristics |
|---|---|
| Brass grades | CW508L, CW505L |
| Thickness range | 0,2 - 1,5 mm |
| Surface target | Uniform structure, low scoring |
| Finish | Brushed, polished, lacquered, electroplated (depending on application) |
| Edge pattern | optically clean, deburred, optionally rounded |
| Use | Appliance panels, fittings, instrument covers |
High-contour perforated and grid parts (filters, screens, shields)
The functional surface (open surface, flow or shielding effect) dominates with hole and grid geometries. Brass is used when corrosion behavior, formability and precise hole patterns need to be combined, e.g. for protective grilles, covers, simple filter elements or EMC-related components.
Technical parameters - Hole/grid parts
Technical parameters - Hole/grid parts
| Parameter | Typical industrial characteristics |
|---|---|
| Brass grades | CW508L, CW505L |
| Thickness range | 0.2 - 3.0 mm |
| Geometry driver | Hole diameter, web width, open area |
| Edge requirement | Burr arm for functional safety (flow/contact) |
| Litigation risks | Tool wear with high contour density |
| Quality assurance | Visual inspection + dimensional check (hole pattern-related) |
Punched parts close to the assembly with defined assembly guidance
This category includes parts that are primarily defined by assembly and position references: Fits, reference holes, insertion chamfers or stop edges. The difference to purely contour-driven parts lies in the specific design for repeatable assembly processes (manual or automated).
Technical parameters - assembly-guided variants
Technical parameters - assembly-guided variants
| Parameter | Typical industrial characteristics |
|---|---|
| Brass grades | CW508L, CW617N (adapted to function) |
| Thickness range | 0.5 - 3.0 mm |
| Reference system | Passport/reference features as primary definition |
| Assembly principle | Screw, clip, plug-in or rivet integration |
| Edge requirement | Easy to insert, deburred on the functional side |
| Test characteristics | Position, roundness/position, insertion geometry |
FAQ
by industry for brass stampings
Automotive industry
Electrical industry
Fastening technology
Furniture industry
Ventilation and air-conditioning technology
Watch industry
Certified according to DIN EN ISO 9001
Harmonized with IATF 16949
Harmonized with IATF 16949
From Bärenstein near Glashütte into the world -
Precision in metal and wood since 1947.
+ 49 (0) 3 5 054 29 12-0
We will be happy to contact you.
