ETP Copper Sheet & Plate - Knowledge

What is copper?

Copper plates are widely used across various industries due to their high electrical and thermal conductivity, corrosion resistance, and ductility. They are critical components in the electrical, automotive, marine, and construction industries.

C12000 copper plates possess extremely high electrical conductivity, making them an essential component in the electrical field. Copper plates are widely used in components such as busbars, circuit breakers, transformers, and switchgear. Furthermore, copper plates are used in various electronic devices to ensure effective heat dissipation.

Copper plates have crucial applications in the automotive and aerospace industries. Due to their high thermal conductivity, copper plates are widely used in radiators, heat exchangers, and battery terminals. Their ability to withstand harsh environments makes them ideal for high-performance vehicles and aircraft.

Copper plates exhibit extremely high corrosion resistance, making them suitable for marine applications. Copper plates are widely used in shipbuilding, offshore facilities, and desalination plants to resist seawater corrosion. GNEE offers high-quality copper plates capable of withstanding harsh marine environments and offering long-term reliability and durability.

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Material Specification of Copper Plates

Copper plate / Copper sheet
Production Standard	ASTM, AISI, JIS, DIN, EN, GB, GOST
Width	20mm-2500mm or as the customer's request
Thickness	0.1mm-250mm or as the customer's request
Length	50mm-12000mm or as the customer's request
Hardness	O, 1/16 Hard, 1/8 Hard, 1/4 Hard, 3/8 Hard, 1/2 Hard, 3/4 Hard, H, EH
Surface	mill, polished, bright, oiled, hair line, brush, mirror, sand blast, or as required
OEM Service	Perforated, Cutting special size, Doing flatness, Surface treatment, etc
Delivery Time	Within 3 days for our stock size, 7-15 days for our production
Package	Export standard package: bundled wooden box, suit for all kinds of transport, or be required
Sample	Free and available
Quality	Mill Test Certificate, ISO9001, CE, SGS, TVE
Processing Service	Bending, Welding, Decoiling, Cutting, Punching
Advantage	Copper is a very ductile and malleable metal. It has high electrical conductivity and high thermal conductivity. Thus, copper parts have a significant advantage for the production of electronic and electrical components.

Chemical Equation of Copper Plates

Grade			Chemical Composition(%)
	GB	JIS	Cu+Ag	P	Bi	Sb	As	Fe	Ni	Pb	Sn	S	Zn	O
Refined Copper	T1	C1020	99.95	0.001	0.001	0.002	0.002	0.005	0.002	0.003	0.002	0.005	0.005	0.02
	T2	C1100	99.9	-	0.001	0.002	0.002	0.005	-	0.005	-	0.005	-	-
	T3	C1221	99.7	-	0.002	-	-	-	-	0.01	-	-	-	-
Oxygen Free Copper	TU0	C1011	99.99	0.0003	0.0001	0.0004	0.0005	0.001	0.001	0.0005	0.0002	0.0015	0.0001	0.0005
	TU1	C1020	99.97	0.002	0.001	0.002	0.002	0.004	0.002	0.003	0.002	0.004	0.003	0.002
	TU2	C1020	99.95	0.002	0.001	0.002	0.002	0.004	0.002	0.004	0.002	0.004	0.003	0.003

Mechanical Composition of Copper Plates

Grade (JIS)	Temper	Vickers Hardness (HV)	Tensile Strength (Mpa)	Elongation (%)
C1100 C1201 C1220 etc.	M (Soft)	≤70	≥195	≥30
	Y4 (1/4H)	60-95	215-295	≥25
	Y2 (1/2H)	80-110	245-345	≥8
	Y (Full Hard)	90-120	295-395	≥3
	T (Extra Hard)	≥110	≥350	-

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Our product range

Product Category	Key Product Forms	Common Standards (Examples)	Typical Applications / Features
Copper Rods & Bars	Round Rods, Square Bars, Hexagonal Bars	ASTM B187, C11000, C10200; EN 12163-66; JIS H3250	Electrical conductors, machined parts, connectors, hardware. Available in various tempers (soft, hard).
Copper Tubes & Pipes	Seamless Tubes, Straight Lengths, Coils (for flexible tubes)	ASTM B75, B280, B88; EN 12735; JIS H3300	Plumbing, HVAC/R, heat exchangers, medical gas lines, hydraulic systems.
Copper Plates & Sheets	Plates (>6mm thickness), Sheets (<6mm thickness)	ASTM B152, C11000; EN 1652; JIS H3100	Architectural cladding, industrial fabrication, grounding plates, chemical processing.
Copper Strips & Foils	Strips, Rolls, Precision Foils	ASTM B272, C11000; EN 1652; JIS H3100	Electrical contacts, transformers, shielding, gaskets, decorative inlays.
Copper Wires	Bare Copper Wire, Stranded Wire, Busbars	ASTM B1, B3, B187; EN 13601; JIS H3260	Windings, cables, busbars, fasteners, welding electrodes.

Our factory

We are a specialized manufacturer of premium copper products, including rods, tubes, plates, bars, wires, and strips. Our factory strictly adheres to international standards such as ASTM, EN, JIS, and GB, ensuring material compliance for global markets. Equipped with modern production lines-including continuous casting for rods, cold drawing machines for tubes, and precision rolling mills for strips-we maintain tight control over dimensions and tolerances. Every batch undergoes rigorous in-house testing using spectrometers for chemical composition, tensile testers for mechanical properties, and eddy current testers for defect detection. Our dedicated quality lab guarantees traceable, reliable products for electrical, automotive, and engineering applications worldwide.

Annealed Copper Tube

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