0.5mm-40mm Thickness 99.95% Pure ASTM C11000 C12700 JIS C1100
C1100p 4ft x8ft Copper Sheet Copper Plate

Sylaith's high-purity copper sheets and plates are engineered for
excellence in the most demanding industrial applications.
Manufactured from pure copper with a minimum 99.95% Cu content, our
products, including ASTM C11000 and JIS C1100 grades, offer
superior electrical conductivity, thermal conductivity, and
corrosion resistance.
Available in a versatile thickness range from a thin 0.5mm up to a
robust 40mm and standard sizes like 4ft x 8ft, these sheets provide
unparalleled flexibility for your projects. With a bright, red
copper surface and options for various tempers (1/4 Hard, 1/2 Hard,
Hard), they guarantee high tensile strength (195-400 MPa) and
excellent elongation (≥40%).
Product Specifications
| Attribute | Specification |
|---|
| Material / Grade | Pure Copper (C11000, C12700, C1100, C1100P) |
| Purity (Cu Min) | 99.95% |
| Thickness Range | 0.1mm - 200mm (Standard: 0.5mm - 40mm) |
| Standard Size | 4ft x 8ft (Customizable Length & Width) |
| Width Range | 100mm - 1500mm |
| Tensile Strength | 195 - 400 MPa |
| Elongation (≥) | 40% |
| Hardness | 1/4 Hard, 1/2 Hard, Hard |
| Surface Finish | Bright, Red Copper |
| Technique | Cold Rolled, Hot Rolled |
| International Standards | ASTM, JIS, AISI, DIN, GB |
| Processing Services | Cutting, Decoiling, Welding, Bending, Punching |
| MOQ | 100kg |
| Price Terms | FOB, CIF, CFR, Ex-Work |
Applications
Electrical Industry: Used for busbars, electrical connectors, switchgear components,
and transformer windings due to excellent conductivity.
Construction & Architecture: Ideal for roofing, flashing, facades, and decorative elements for
their durability, weather resistance, and iconic appearance.
Industrial Machinery: Fabricated into heat exchangers, gaskets, and chemical processing
vessels where thermal conductivity and corrosion resistance are
critical.
Power Generation: Essential in renewable energy systems, including solar power
collectors and grounding plates.
Manufacturing & Fabrication: Served as raw material for custom parts, prototypes, and OEM
components that require high formability and reliability.

Working Principle
Pure copper functions by leveraging its atomic structure, which
allows for the nearly unimpeded flow of electrons (electrical
conductivity) and efficient transfer of kinetic energy from atoms
(thermal conductivity). In practical terms:
As a Conductor: When integrated into an electrical circuit, the copper sheet
provides a low-resistance path, minimizing energy loss as heat and
ensuring efficient power distribution.
As a Heat Exchanger: In thermal applications, the copper plate rapidly absorbs heat
from a source and dissipates it across its surface or to a cooling
medium, making it ideal for managing temperatures.
As a Durable Material: Its inherent malleability and ductility (high elongation) allow it
to be shaped and formed without cracking, while its corrosion
resistance ensures long-term structural integrity in harsh
environments.

Packing and Shipping

Frequently Asked Questions
Q1: What is the difference between C11000 and C1100 copper?
A: C11000 is the ASTM (American) standard designation for
Electrolytic Tough Pitch copper, while C1100 is the JIS (Japanese)
standard for the same material. Both have a purity of 99.90% Cu min
and are essentially equivalent in performance and composition.
Q2: Can you provide custom-cut sizes?
A: Absolutely. We specialize in customization. We can precision-cut
sheets to your required length, width, and shape using our cutting,
punching, and decoiling services. Standard sheets like 4x8ft are
also available.
Q3: What is the meaning of "1/2 Hard" or "Hard" temper?
A: Temper indicates the cold-worked state of the copper. "Soft" or
"Annealed" is highly malleable, "1/4 Hard" and "1/2 Hard" offer a
balance of strength and formability, and "Hard" provides the
highest strength but less formability. We can supply all tempers to
suit your fabrication needs.
Q4: What are your packaging and delivery terms?
A: We use standard seaworthy packaging to ensure our products
arrive damage-free. We offer flexible trade terms including FOB,
CIF, CFR, and Ex-Work to facilitate smooth international logistics.
Q5: Why is the copper purity of 99.95% significant?
A: A higher purity level (99.95% vs. the common 99.90%) directly
translates to even better electrical and thermal conductivity. This
is a critical advantage for high-efficiency electrical systems and
advanced thermal management applications, reducing energy loss.