Oxygen-Free Copper ∣ GWO CHERN INDUSTRIAL CO., LTD.

C1020

Oxygen-Free Copper

Alloy Number：JIS C1020
Corresponding Material：ASTM C10200
Substance：

Gwo Chern Code	Cu	Pb	Fe	Sn	Ni	Al	Si	Bi	Mn	P	Others
102	≧99.96	─	─	─	─	─	─	─	─	─	O≦0.001

Have excellent electrical conductivity, thermal conductivity, ductility and malleability and great corrosion resistance.Will not become hydrogen embrittlement even if heated in a reduced-gas environment under high temperature.Can be applied to electronic appliance components and industrial chemicals.

Ratio (20℃)	Electrical Conductivity [%IACS]	Thermal Conductivity [w/(m·K)](20℃)	Longitudinal Elastic Modulus [KN/mm²]
8.94	101	391	118

Copper Wire

Quality Grade	Mark	Diameter, side, distance between opposite sides (mm)		Tensile Strength (N/mm²)	Ductility and Malleability (%)
O	C1020 W-O	0.4 or more	2.0 or less	195 or more	15 or more
O	C1020 W-O	2.0 or more	20.0 or less	195 or more	25 or more
1/2H	C1020 W-1/2H	0.4 or more	12.0 or less	255-365	－
1/2H	C1020 W-1/2H	12.0 or more	20.0 or less	245-365	－
H	C1020 W-H	0.4 or more	10.0 or less	345 or more	－
H	C1020 W-H	10.0 or more	20.0 or less	275 or more	－

Copper Rod

Quality Grade	Mark	Diameter, side, distance between opposite sides (mm)		Tensile Strength (N/mm²)	Ductility and Malleability (%)	Hardness (HV)
F	C1020 BE-F	6.0 or more		195 or more	25 or more	－
F	C1020 BE-F	100 or more		195 or more	25 or more	－
O	C1020 BD-O	2.0 or more	6.0 or less	195 or more	25 or more	－
O	C1020 BD-O	6.0 or more	110 or less	195 or more	30 or more	－
1/2H	C1020 BD-1/2H	2.0 or more	6.0 or less	245 or more	10 or more	－
		6.0 or more	25.0 or less	245 or more	15 or more	－
		25.0 or more	50.0 or less	225 or more	20 or more	－
		50.0 or more	75.0 or less	215 or more	25 or more	－
		75.0 or more	110 or less	205 or more	30 or more	－
H	C1020 BD-H	2.0 or more	25.0 or less	275 or more	－	－
		25.0 or more	50.0 or less	245 or more	－	－
		50.0 or more	75.0 or less	225 or more	－	－
		75.0 or more	110 or less	215 or more	－	－

Welding	Excellent
Brazing	Excellent
Oxy‑accetylene welding	Homogeneity
Gas Metal Arc Welding	Good
Metallic Coating Elecric Welding	Not Recommended
Soldering	Not Recommended
Seam Welding	Not Recommended
Butt Welding	Good
Cold Working	Excellent
Hot Working	Excellent
Castability	Good
Processability	Not Recommended

Bus, coaxial cable, electric conduct, klystron

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Product Introduction

Oxygen-Free Copper