Copper Stamped Parts – ASTM Certified Precision Copper Stampings for US Industrial, Architectural & Electronics Buyers
From industrial equipment OEMs in the Midwest to architectural designers in New York, and from HVAC manufacturers in the Sun Belt to antimicrobial hardware specifiers in the healthcare sector — American buyers across industries rely on precision Copper Stamped Parts for applications where no other material will do. Conex Screws and Fasteners manufactures ASTM B152-certified copper stampings for the full breadth of US copper applications — industrial, electrical, architectural, plumbing, HVAC, decorative, and custom — with the documentation, tolerances, and reliability that US buyers demand.
With 30+ years of US export experience, Conex is the India-based copper stamping manufacturer that understands American drawings (inch units, ASME tolerances, ASTM grades), US import logistics (ISF filing, ISPM-15 crating, preferred US forwarders), and the total-cost math that makes India sourcing compelling against both domestic and Chinese alternatives.
Why US Buyers Source Copper Stampings from Conex
- ASTM B152 Certified: C11000, C12200, C10200, OFHC — all sourced from ASTM-certified mills with genuine MTCs and conductivity data.
- Inch & Metric Drawings Accepted: We work natively in inches (ASME tolerances) or millimeters — no conversion errors, no ambiguity.
- India-Origin Tariff Advantage: Copper stampings from India avoid Section 301 tariffs on Chinese goods — same quality, lower total landed cost.
- California Prop 65 & RoHS Compliance: Lead-free copper grades and full compliance documentation for US markets with strict environmental regulations.
- Antimicrobial Copper (EPA Registered): We supply EPA-registered antimicrobial copper alloys (C11000, C26000, C51000) for US healthcare, hospitality, and public-space touch surface applications.
- Custom Plating to US Standards: Tin (IPC-4552), nickel (ASTM B689), chrome (ASTM B456), silver (MIL-P-81728) — matched to your US specification.
What Are Copper Stamped Parts?
Copper stamped parts are components produced by pressing or stamping copper sheet, strip, or foil through precision hardened steel tooling via operations including blanking, piercing, bending, forming, deep drawing, embossing, and coining. In the US market, copper stampings span an extraordinarily wide range of applications — from functional electrical components governed by UL and NEC to architectural and decorative hardware, HVAC fittings per ASTM B88, antimicrobial touch hardware per EPA guidelines, and precision industrial components per ASME and ASTM standards. Copper’s unique combination of electrical conductivity, thermal conductivity, natural antimicrobial properties, and beautiful aesthetic appearance makes it the go-to material when no substitute will suffice.
Key Properties That US Engineers Specify
- Electrical Conductivity: 100% IACS (C11000) — the benchmark for current-carrying copper hardware per NEC and IEEE standards.
- Thermal Conductivity: 222 BTU/hr·ft·°F (385 W/m·K) — critical for heat sink applications in US power electronics and industrial equipment.
- EPA Antimicrobial Registration: Copper alloys containing ≥65% Cu are EPA-registered antimicrobial surfaces — kills >99.9% of bacteria within 2 hours. Referenced in CDC and ASHRAE guidelines for healthcare facilities.
- Corrosion Resistance: ASTM B117 salt spray performance — copper stampings naturally resist atmospheric corrosion; plated versions meet US coastal and outdoor requirements.
- Formability: Copper is one of the most ductile stamping materials — complex geometries achievable to ASME tolerance bands without cracking or springback issues.
- ASTM Grade Range: C11000 for electrical, C12200 for HVAC/plumbing, C10200 for electronics/vacuum, commercial copper for architectural/decorative.
Copper Stampings We Manufacture for US Buyers
- Copper flat and formed washers (ASME B18.22.1 and custom inch sizes)
- Copper heat sink stampings (TO-220, TO-247, custom thermal management)
- Copper architectural hardware — door push plates, kick plates, sign blanks, decorative panels
- Copper antimicrobial touch hardware — handrail inserts, grab bar liners, elevator buttons
- Copper HVAC fittings — C12200 DHP copper blanks and formed components per ASTM B88
- Copper plumbing hardware — valve seats, cap blanks, formed tube ends
- Copper roofing and flashing blanks — architectural copper cladding components
- Copper gaskets and sealing rings — industrial and plumbing applications
- Copper formed brackets and mounting clips — industrial and electrical enclosures
- Custom copper stampings to US customer drawings, DXF, DWG, STEP/IGES, or samples
ASTM Material Grades & US Application Cross-Reference
| ASTM Grade (USA) | UNS Number | Common US Name | Conductivity | Primary US Application | Relevant US Standard |
|---|---|---|---|---|---|
| ASTM B152 C11000 | C11000 | ETP Copper | 100% IACS | Electrical hardware, grounding, bus bars | NEC, UL, IEEE |
| ASTM B152 C12200 | C12200 | DHP Copper | 85% IACS | HVAC fittings, plumbing, brazing components | ASTM B88, ASHRAE |
| ASTM B152 C10200 | C10200 | OF Copper | 101% IACS | RF connectors, vacuum electronics | MIL-DTL-55302, IEEE |
| ASTM B370 | C11000 | Architectural Copper | 100% IACS | Roofing, cladding, decorative panels | ASTM B370, SMACNA |
| EPA Antimicrobial Copper | C11000, C26000+ | Touch Surface Copper | ≥65% Cu | Healthcare, hospitality touch hardware | EPA Reg. 882, CDC guidelines |
US Imperial & Metric Dimensional Capability
| Parameter | Range (Imperial) | Range (Metric) | Tolerance |
|---|---|---|---|
| Strip Thickness | 0.004″–0.250″ | 0.1–6.0 mm | ±0.0005″–±0.005″ |
| Part OD / Length | Up to 10″ | Up to 250 mm | ±0.002″–±0.010″ |
| Hole Diameter (min) | 0.020″ | 0.5 mm | ±0.001″ |
| Bend Radius (min) | 0.5× thickness | 0.5× thickness | ±5° |
| Flatness | ±0.004″/10″ | ±0.1 mm/100 mm | Per drawing |
| Surface Finish | Ra 16–63 μin (as-stamped) | Ra 0.4–1.6 μm | Better with polishing |
Performance Metrics
- Electrical Conductivity (C11000): 100% IACS (min 97% per ASTM B152)
- Thermal Conductivity: 222 BTU/hr·ft·°F / 385 W/m·K
- Tensile Strength: 29,000–43,000 psi (annealed to hard temper)
- Hardness: 40–100 HV / 30–85 HRF (Rockwell F)
- Antimicrobial Efficacy: >99.9% bacterial kill rate within 2 hours on EPA-registered copper touch surfaces (tested per EPA Protocol #01-1A)
- Corrosion Rating: Excellent indoor; good outdoor (patina-forming); seawater-resistant with appropriate alloy selection
Our Technical Expertise — 30 Years Stamping Copper for US Buyers
Conex’s 30-year track record with US copper stamping customers spans industries as diverse as architectural design, plumbing OEM manufacturing, healthcare antimicrobial hardware, RF electronics, and industrial equipment. We understand that US buyers in each sector have different documentation needs — an architectural firm needs a COO and material spec sheet; a HVAC manufacturer needs an ASTM B152 MTC; an electronics OEM needs IPC-4552 plating certification; a healthcare procurement officer needs EPA registration proof for antimicrobial copper alloys. Our team is trained to deliver the right documentation for each sector without the US customer having to ask twice.
Related US Search Terms
Copper stamped parts USA, copper stampings ASTM B152, copper heat sink stampings, copper architectural hardware import, antimicrobial copper stampings EPA, copper HVAC fittings ASTM B88, copper gaskets stamped, copper decorative panels import India, copper touch plates healthcare, copper plumbing blanks C12200, copper roofing stampings ASTM B370, custom copper stampings OEM USA
US-Standard Packaging & Documentation
Architectural and decorative copper stampings are individually tissue-wrapped and tray-packed to prevent surface scratching during transit. Functional stampings are packed in polybags with desiccant. All packages are labeled in English with ASTM grade, UNS number, part reference, finish/plating, quantity, and lot number. Documentation kit: ASTM B152 MTC, EPA antimicrobial registration letter (where applicable), RoHS/Prop 65 declaration, COO (India), packing list, and USD commercial invoice.
Why US Buyers Choose Conex Over Domestic or Alternative Sources
- True ASTM Documentation: Our MTCs are mill-genuine, not fabricated — traceable to our raw material supplier and verifiable through the mill’s own records.
- EPA Antimicrobial Documentation: We can supply copper touch hardware with EPA registration reference documents — required for healthcare procurement specifications in many US states.
- India Tariff Advantage: Indian-origin copper stampings avoid Section 301 China tariffs — significant savings on high-volume architectural or industrial orders.
- Architectural & Functional in One Source: Unlike specialty architectural metal shops or pure electrical stamping houses, Conex handles both — from decorative push plates to functional HVAC fittings from a single manufacturer.
- Custom & Small Batch Possible: Architectural and specialty projects often need small quantities of unique profiles. Our in-house tooling keeps custom tooling costs low enough to make small runs economically viable.
What Separates Conex from Other Copper Stamping Manufacturers
The US market for copper stampings is served by domestic shops with high costs, Chinese suppliers with documentation integrity concerns, and a handful of Indian exporters. What distinguishes Conex among Indian exporters is our sector breadth and documentation depth. We serve US architects and designers with the same quality and communication commitment we bring to US electrical OEMs and HVAC manufacturers. Our in-house tool room operates for every sector — there’s no job too custom or too niche if it’s within our press capability. And our 30-year US relationships mean we have case-study experience in what each sector needs from an overseas copper stamping supplier.
Frequently Asked Questions – US Buyers
Q1. Are your copper stampings ASTM B152 certified?
Yes. We source ASTM B152-certified copper strip for all grades — C11000 (ETP), C12200 (DHP), C10200 (OF), and ASTM B370 architectural copper. MTCs are provided with every shipment.
Q2. Do you supply EPA-registered antimicrobial copper hardware?
Yes. We can supply touch hardware from EPA-registered antimicrobial copper alloys (≥65% copper content, per EPA Registration No. 882). Documentation available for US healthcare procurement requirements.
Q3. Can you stamp copper to ASME B18.22.1 washer dimensions (inch series)?
Yes. We produce copper washers to ASME B18.22.1 Type A and Type B dimensions in inches, as well as to custom drawings in inch or metric units.
Q4. Do you produce copper HVAC fittings and plumbing components (ASTM B88 compatible)?
Yes. We use DHP copper C12200 — the standard alloy for ASTM B88 copper tubing and fittings — to produce stamped blanks, formed caps, and HVAC component parts.
Q5. Can you stamp copper architectural panels for US building projects?
Yes. We produce architectural copper stampings from ASTM B370 copper in standard gauges (16–28 oz/sq ft range) for roofing, cladding, ornamental panels, and millwork hardware.
Q6. What is the lead time for copper stamped parts to the USA?
Standard items: 7–14 days production. Sea freight: 18–28 days to US ports. Air freight: 5–7 business days. Total sea: 4–6 weeks from PO to US delivery.
Q7. Are copper stampings from India subject to Section 301 tariffs?
No. Section 301 tariffs apply to Chinese-origin goods. Indian copper stampings import at MFN rates under HTS Chapter 74, with no Section 301 surcharge.
Q8. Can you produce copper heat sinks for power electronics assemblies?
Yes. We stamp and form copper heat sinks for TO-220, TO-247, and custom footprint power components. Thickness range 0.040″–0.250″. We work from thermal engineering drawings or customer-specified dimensions.
Q9. Do you accept US imperial drawings (inches, ASME GD&T)?
Yes. We regularly process drawings in inches with ASME Y14.5 GD&T (Geometric Dimensioning and Tolerancing) callouts. Our tool room and QC team work in both imperial and metric systems.
Q10. What payment terms do you offer US buyers?
T/T (wire transfer): 30% advance, balance before shipment (new buyers). Irrevocable LC at sight accepted. Established US buyers may qualify for open account terms. All invoices in USD.
Q11. Can you stamp thin copper foil for flexible circuit or EMI applications?
Yes. We stamp copper foil from 0.004″ (0.1 mm) for flexible circuit hardware, ultra-thin EMI shields, and thermal interface laminates.
Q12. Do you produce copper decorative stampings for US retail and hospitality markets?
Yes. Bar hardware, retail display components, furniture feet, decorative knobs, and bespoke retail fixtures are regular projects for our US hospitality and retail customers.
Q13. Can you handle custom orders for US architects and interior designers?
Yes. We work directly with architects, interior designers, and millwork contractors on bespoke copper stamping profiles. We provide DFM feedback, prototype samples, and small production runs.
Q14. What US ports do you ship copper stampings to?
We ship regularly to Los Angeles/Long Beach, New York/NJ, Baltimore, Savannah, Houston, Seattle, and Miami. We work with your US freight forwarder or can recommend established consolidators from India.
Q15. How do I get a quote for copper stamped parts?
Send your drawing (PDF, DXF, DWG, STEP/IGES) or sample photos with key dimensions, ASTM grade, finish/plating requirement, quantity, and US delivery port. We respond with a USD quotation within 24 hours.
Customer Testimonials
“We specified Conex for our flagship hotel renovation’s copper touch hardware — door plates, elevator buttons, grab bar inserts — all EPA antimicrobial copper. Their craftsmanship is excellent, the surface finish is beautiful, and they provided the EPA registration documentation our hospital and hospitality clients require. Truly a premium supplier.”
— Emily Lawson, Senior Procurement, Architectural Hardware, New York, USA
“Our HVAC division switched to Conex for DHP copper C12200 stamped blanks after our domestic supplier raised prices by 35%. Conex’s ASTM B152 MTCs are genuine, the parts fit our tooling perfectly, and the total landed cost is 22% lower even after freight. We’ve been ordering quarterly for three years.”
— Mark Jensen, VP Operations, HVAC Equipment OEM, Arizona, USA
Glossary of US Trade & Industry Terms
- ASTM B152
- American standard for copper sheet, strip, plate, and rolled bar — the foundational material standard for copper stampings used in US electrical, HVAC, architectural, and industrial applications.
- ASTM B370
- US standard for copper sheet and strip for building construction — covers architectural copper for roofing, flashing, and cladding applications.
- EPA Antimicrobial Copper
- Copper alloys registered with the US Environmental Protection Agency (EPA Registration No. 882) as antimicrobial surfaces that kill >99.9% of bacteria within 2 hours — used in US healthcare, transit, and public-space applications.
- DHP Copper (C12200)
- Phosphorus deoxidized copper — the standard alloy for ASTM B88 copper plumbing tube, fittings, and HVAC components due to its suitability for brazing and soldering.
- ASME Y14.5
- American standard for Geometric Dimensioning and Tolerancing (GD&T) — the US engineering drawing language used to specify part geometry and tolerances.
- SMACNA
- Sheet Metal and Air Conditioning Contractors’ National Association — US industry body that publishes standards for architectural sheet metal including copper roofing and cladding.
- Prop 65 (California)
- California Proposition 65 — requires warnings for exposure to chemicals listed as carcinogens or reproductive toxicants, including lead at threshold levels in brass/copper alloys used in consumer products.
- Section 301 Tariffs
- US tariffs on Chinese-origin goods — Indian copper stampings are not subject to these tariffs under standard MFN/GSP treatment.
Related Parts: Copper flat washers ASTM, copper formed washers, copper heat sinks power electronics, copper architectural panels ASTM B370, copper antimicrobial touch plates EPA, copper HVAC blanks C12200, copper plumbing stampings, copper gaskets industrial, copper roofing stampings, copper decorative hardware, copper heat spreaders, copper brackets industrial, copper EMI foil shields, copper stamped components USA, custom copper stampings OEM
Ready to Source? Start Your US Inquiry Today!
Whether you’re an architect specifying copper touch hardware, an HVAC OEM sourcing DHP copper fittings, a power electronics engineer needing heat sinks, or an industrial buyer looking for custom copper stampings — Conex Screws and Fasteners has the ASTM-certified copper, the in-house tooling expertise, and the 30-year US export track record to be your reliable supply partner.
📧 Send your drawing, sample, or specification today. Detailed USD quotation within 24 hours.
✅ ASTM B152 certified | ✅ EPA antimicrobial copper available | ✅ Inch & metric drawings accepted | ✅ India-origin (no Section 301) | ✅ Ships to all US ports
