Copper Stamping and Copper Pressing – Precision Copper Components from India

Copper stamping and copper pressing are precision metal forming processes that transform raw copper sheets or coils into complex, high-tolerance components. At Brass & Copper Parts India, headquartered in Jamnagar, India — the world’s brass capital — we manufacture copper stamped and pressed parts that meet the most stringent quality standards demanded by USA and global markets.

What Is Copper Stamping?

Copper stamping is a cold-forming manufacturing process in which copper sheet metal (typically C11000, C10100, or C12200) is placed into a die press and shaped through cutting, bending, embossing, flanging, or coining operations. Progressive die stamping enables high-volume production of intricate geometries in a single pass, dramatically reducing unit cost while maintaining tight dimensional tolerances (±0.01 mm or better).

What Is Copper Pressing?

Copper pressing — also called copper deep drawing or press forming — uses hydraulic or mechanical presses to force copper blanks into shaped dies, producing seamless hollow or flanged components. Pressing is preferred for thick-walled cups, bushings, connectors, and electrical contacts where material integrity and structural strength are paramount.

Related Copper Stamped and Pressed Parts We Manufacture

Electrical & Electronic Components

• Copper bus bar blanks and segments
• Electrical contact springs and terminals
• Transformer lamination stampings
• Grounding lugs and earthing clamps
• Shunt resistor blanks

Plumbing & HVAC Components

• Copper pipe end caps and flanges
• Refrigeration fittings stampings
• Heat exchanger fins and plates
• Valve seat discs

Automotive & Industrial Parts

• Commutator segments
• Radiator fins and headers
• Brush holders and current carriers
• Custom deep drawn copper shells

Copper Grades Used in Stamping & Pressing – International Equivalents

Common Name	UNS (USA)	EN (Europe)	BS (UK)	IS (India)	DIN (Germany)	Key Property
Electrolytic Tough Pitch Copper	C11000	CW004A	C101	ETP	E-Cu 58	High conductivity (≥101% IACS)
Oxygen-Free Copper	C10100 / C10200	CW008A	C103	OFC	OF-Cu	Hydrogen-embrittlement resistant
Phosphorus Deoxidized Copper	C12200	CW024A	C106	DHP	SF-Cu	Excellent weldability, plumbing
Free Machining Copper	C14500	CW118C	—	—	CuTeP	Superior machinability
Beryllium Copper	C17200	CW101C	CB101	—	CuBe2	High strength + conductivity

Our Copper Stamping Manufacturing Capabilities

• Press capacity: 5 tons to 400 tons
• Sheet thickness: 0.3 mm to 10 mm
• Tolerances: ±0.005 mm to ±0.05 mm
• Tooling: In-house progressive dies, compound dies, transfer dies
• Secondary operations: Deburring, nickel plating, tin plating, silver plating, passivation, annealing
• Certifications: ISO 9001:2015, RoHS compliant

Why Choose Brass & Copper Parts India for Copper Stamping?

• 25+ years of manufacturing expertise – Deep domain knowledge in copper forming processes
• Vertically integrated facility – In-house die making, forming, finishing, and quality control
• Cost competitiveness – Up to 40% savings compared to USA/European suppliers without quality compromise
• Export-ready packaging – Sea freight and airfreight compliant packaging to US ports
• Low MOQ flexibility – Prototype-to-production runs for US distributors and OEMs
• PPAP, FAIR, and FAI documentation available upon request
• USA reference customers – Trusted by electrical, plumbing, and automotive Tier-1 suppliers

Frequently Asked Questions — Copper Stamping & Pressing

Q1: What is the minimum order quantity for copper stampings from India?

We accommodate orders starting from 500 pieces for prototype or sample runs, scaling to millions of pieces per year for high-volume production. US buyers often need samples before committing to full production, so we offer sample tooling and short-run first-article quantities to validate design and dimensional requirements before production commitment.

Q2: What copper alloys do you use for stamping and pressing?

We primarily use ETP copper (C11000, 100% IACS) for electrical stampings, and also process oxygen-free copper (C10200), DHP copper (C12200 for plumbing), and phosphor-deoxidised copper. Each alloy is selected for the application: C11000 for maximum conductivity, C10200 for hydrogen embrittlement resistance, C12200 for brazed or soldered fittings.

Q3: What press tonnage capacity do you have for copper stampings?

Our press shop runs mechanical and hydraulic presses from 25 tonnes to 400 tonnes capacity. This range covers thin foil contacts (0.3 mm, low tonnage) through deep-drawn shells and heavy bus bar components (up to 6 mm copper, high tonnage). Multi-stage progressive dies are run on purpose-matched presses to optimise strip feed and accuracy.

Q4: What are the dimensional tolerances for CNC progressive die copper stampings?

For blanked edges: ±0.05 mm on profile and hole positions. For formed dimensions after bending: ±0.1 mm. For deep-drawn shell heights and diameters: ±0.15 to 0.2 mm depending on draw ratio. Fine blanking can achieve ±0.02 mm with perpendicular, burr-free edges for precision contacts and instrument components.

Q5: What surface finish or plating is available on copper pressings?

Available finishes include: bright copper as-pressed, chemical passivation, electroplated tin (bright or matte, 5–15 µm), nickel plating (3–10 µm), silver plating (3–15 µm), and gold plating for precision contacts. Anti-tarnish lacquer is available for decorative copper hardware. All plating is applied per ASTM B545 (tin), ASTM B689 (nickel), or customer specification.

Q6: Can you press copper components with holes, slots, and embossed features?

Yes. Progressive dies can combine blanking, piercing, embossing, coining, and forming in one continuous strip process. Holes from 1 mm diameter, slots, louvers, tabs, and embossed ribs can all be incorporated in a single progressive die. Complex shapes requiring multiple operations are more economical in progressive tools versus compound dies for production volumes above 10,000 pieces.

Q7: What is the tooling lead time for a new copper pressing?

New die tooling typically takes 3 to 5 weeks from approved 2D drawing to first-article samples. Simple blanking tools (1–2 stages) can be completed in 2 to 3 weeks. Complex progressive dies with 6 or more stations require 5 to 7 weeks. First-article inspection reports are provided with initial samples for customer approval before series production commences.

Q8: Do you press copper components to ASTM B152 specification?

Yes. Raw copper sheet is sourced per ASTM B152 (copper sheet, strip, plate, and rolled bar) for US customers, confirming purity, conductivity, and mechanical properties. EN 1652 equivalent certificates are provided for European project requirements. Material Test Certificates accompany all orders on request.

Q9: Can you handle reverse engineering of an existing copper pressing?

Yes. If you send us a sample part without drawings, our metrology team will fully measure it on a CMM, create a 2D drawing with all dimensions and tolerances, design the tooling, and produce a first-article to confirm the reverse-engineered dimensions. This service is especially useful when original tooling or drawings have been lost for legacy components.

Q10: What are the packaging requirements for copper pressings during export?

We pack copper pressings in VCI (Volatile Corrosion Inhibitor) polyethylene bags, then layer-pack in corrugated cartons with cushioning foam. VCI bags release anti-corrosion vapour that prevents copper tarnishing during ocean and air freight shipments of up to 60 days. Bulk export packs, counted bags, or reel packaging (for strip stampings) are all available per customer requirement.