TP2 Copper Earthing Plate
Henan Gnee New Material Co., Ltd. is one of the most professional manufacturers and suppliers of tp2 copper earthing plate in China, specialized in providing high quality copper products with competitive price. Welcome to buy discount tp2 copper earthing plate for sale here from our factory. Customized orders are welcome.
What Is TP2 Copper?
TP2 phosphorus deoxidized copper sheet is a high-purity, low-oxygen content copper alloy, whose main components are copper and a small amount of phosphorus elements. The addition of phosphorus can effectively improve the strength and hardness of copper, while reducing its electrical and thermal conductivity, thus meeting the different needs of different fields for material performance.
What Are the International Equivalents of TP2 Copper?
| Standard | Grade Designation |
|---|---|
| China (GB) | TP2 (our product) |
| USA (UNS) | C12200 |
| Europe (EN) | Cu-DHP (CW024A) |
| Japan (JIS) | C1220 |
| ISO | Cu-DHP |
Key Properties of TP2 Earthing Plates
| Property | Value |
|---|---|
| Purity | 99.90% min |
| Phosphorus Content | 0.015 – 0.040% |
| Electrical Conductivity | ~85–90% IACS |
| Resistivity | ~1.91 µΩ·cm (at 20°C) |
| Thermal Conductivity | ~340 W/m·K |
| Density | 8.94 g/cm³ |
| Melting Point | 1083°C |
| Tensile Strength | 220–280 MPa (depending on temper) |
| Elongation | 30–45% |
| Corrosion Rate in Soil | < 0.025 mm/year |
| Coefficient of Thermal Expansion | 16.9 µm/m·K (20–300°C) |
What Standards Do TP2 Earthing Plates Comply With?
GB/T 2059 – Chinese standard for copper plate
ASTM B152 / B152M – Standard Specification for Copper Sheet, Strip, Plate
IEEE 80 – IEEE Guide for Safety in AC Substation Grounding
IEC 62305 – Lightning Protection Standards
BS 7430 – Code of Practice for Earthing
NFC 17-102 – French lightning protection standard
Products Description
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Size |
Width: 10mm to 2000mm, |
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Hardness |
1/16 hard,1/8 hard,3/8 hard,1/4 hard,1/2hard,full hard. |
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Surface |
Polished,bright,oiled,hair line,brush,mirror,or as required |
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Export to |
Ireland,Singapore,Indonesia,Ukraine,Saudi Arabia,Spain,Canada,USA, |
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Package |
Plastic film with Wooden case or wooden pallet |
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Delivery time |
Prompt delivery or upon your order quantity. |
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Quality Control |
Mill Test Certification is supplied with shipment,Third Part Inspection is acceptable. |
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Application |
widely used inair conditioners,refrigerators,electric,solar water heater, polished pipe an be used in decorative,such as stair rail. |
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Shape |
Round, Square, Oval, can be customized |
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TP2 phosphorus deoxidized copper sheet has excellent electrical and thermal conductivity, which makes it widely used in the electrical field. In addition, it also has good processing performance, can be rolled, tensile, bending and other ways of processing, made of various shapes and specifications of the product. At the same time, TP2 phosphorus deoxidized copper sheet also has good corrosion and oxidation resistance, which can be used for a long time under harsh environmental conditions.
FAQ
Q: What does TP2 stand for?
A: TP2 is the Chinese standard designation for Phosphorus-Deoxidized Copper. "T" stands for copper, "P" for phosphorus-deoxidized, and "2" indicates the specific grade with 0.015–0.040% phosphorus content.
Q: Is TP2 the same as C12200?
A: Yes. TP2 (Chinese standard) is equivalent to UNS C12200 (American standard) and Cu-DHP (European standard). They refer to the same material composition.
Q: Why is TP2 preferred over T2 for earthing?
A: T2 (C11000) contains oxygen and can suffer from hydrogen embrittlement when welded. TP2 is deoxidized with phosphorus, making it more reliable for buried applications where exothermic welding is used.
Q: What thickness do I need for my earthing system?
A: This depends on the fault current and required service life:
3 mm: Light duty (telecom, small buildings)
6 mm: Standard industrial, most applications
10–12 mm: High current substations, critical infrastructure
How Are TP2 Earthing Plates Packed for Shipping?
Proper packaging ensures your earthing plates arrive in perfect condition:
Surface protected with anti-tarnish coating
Interleaving with protective paper between plates
Edge protectors for handling safety
Waterproof wrapping for moisture protection
Reinforced wooden crates or pallets for export
Bundled with steel strapping for secure transport
Our production capacity:
We have state-of-the-art manufacturing facilities equipped with cutting-edge technology and experienced professionals. This enables us to provide strong production capabilities to meet your piping supply needs.
Below is an overview of our production capabilities:
Annual production: We have the capacity to produce 8,000 tons of copper per year.
Sizes: Our production lines are capable of producing copper products in a variety of sizes.
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