Brass Foil For Radiator

C2680 brass foil（GB：H65/H66），high precision brass foil, has superior properties of high strength, high softening temperature, low cost and good performances of welding, processing and forming. If required, brass foils of C2200（H90）and C2300（H85）, which have the same applications and sizes, but have better thermal conductive properties, can be supplied. The thermal conductivities (20℃) of C14415, C2200, C2300, C2680 are 350, 184, 159,120 W/(m·℃) respectively.

Composition（w%）

JIS： C2680	Cu	Fe	Pb	Zn
（GB：H65/H66）	64.0～68.0	0.05 max.	0.03max.	Re.

Physical Properties

Density，			g/cm3	8.5
Electrical conductivity (20℃)，			%IACS	25（annealed）
Thermal conductivity (20℃)，			W/(m·℃)	120
Coefficient of thermal expansion (20-300℃)，			10-6/℃	20.2
Specific heat capacity (20℃)，			J/(g·℃)	0.38
Modulus of elasticity，			GPa (KN/mm2)	112
H04（Hard）	H06	EH	440～540	135～185
H06（Ultrahard）	H08	SH	570～670	180～325

MechanicalProperties

Temper			Tensile strength	Hardness
GB	ASTM	JIS	Rm MPa (N/mm²)	_HV1）
H02（1/2 Hard）	H04	H	380～460	115～160
H04（Hard）	H06	EH	440～540	135～185
H06（Ultrahard）	H08	SH	570～670	180～325

Notes: The technical data in this table is recommended. Products with other properties can be provided according to customers’ requirements. ¹^）only for reference.

Thickness and Width Tolerances

Thickness Tolerance		Width Tolerance
Thickness	Tolerance	Width	Tolerance
0.04～0.05	±0.003
＞0.05～0.10	±0.005	15～200	±0.08
＞0.10～0.15	±0.008
Notes：After consultation, products with higher precision requirements can be provided.

Other Data

Camber	mm/m	2.0 max.（width≥30 mm ）
Coil ID.（for nominal sizes）	mm	Ф76 / Ф100 / Ф120 / Ф150
Coil OD.	mm	According to customers’requirements
Coil mass per width	Kg/mm	According to customers’requirements
Packing		wooden case

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