C1020 (OFC Oxygen-Free Copper) - UNS C10200 | Pure Copper

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About C1020 (OFC Oxygen-Free Copper) - UNS C10200 | Pure Copper

Item	Details
Grade	C1020 (OFC Oxygen-Free Copper)
Reference Standards (for reference only)	JIS C1020 (H3100) UNS/CDA C10200
Available Shapes	Coil, Sheet
Manufacturable Thickness Range (Strip, Sheet)	Please contact us
Manufacturable Width Range (Strip, Sheet)	Please contact us
Length	Strip or Sheet (Length less than 2,000 mm)
Technique	Cold Rolled
Temper	O (Annealed), As Rolled (1/4H, 1/2H, H)
Coil I.D.	300, 400, 571 mm
Chemical Composition	Cu ≥ 99.90
Density	8.94 g/cm³
Specific Heat	385 J/(kg·K)
Electrical Resistivity	1.67 μΩ·cm
Young's Modulus	111 GPa
Thermal Expansion	17.0 × 10^-6/K
Thermal Conductivity	393 W/(m·K) (25°C)
Melting Point	1083°C
Magnetism	Non-magnetism
Minimum Order Quantity	100 Kilograms
Country of Origin	Japan
Payment Terms	Telegraphic Transfer (T/T)
Delivery Terms	EXW, FOB, CIF, DAP, etc.
Packing	Our Standard Packing for Export
Export Markets	Asia, Middle East, North America, South America, Europe, etc.
Description	C1020 is high-purity oxygen-free copper (OFC) with a copper content of over 99.90%. It is called Oxygen-Free Copper because it contains extremely low oxygen and no copper oxide (Cu₂O) or residual deoxidizing agents. This results in excellent electrical and thermal conductivity and prevents hydrogen embrittlement, even when heated in reducing atmospheres. It is widely used in electrical components, heat transfer systems, and precision industrial applications requiring high conductivity and reliability.

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