Bronze sheets

They are semi-fabricated obtained by cold lamination, having very good cold processing properties, soldering, wear and corrosion resistance and at the same time high hardness.

COMMON AREAS OF USE FOR BRONZE SHEETS

Connectors, contact springs, flexible electrical contact blades, terminals, switch parts, fuses, clamps, electronic connectors, electromechanical spring components, parts for switches, parts for precision electronic instruments, high resistance elements, switching elements, fixed contacts.

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ALLOYS / CHARACTERISTICS OF BRONZE SHEETS

EXECUTION STANDARD EN 1652

ALLOY	SYMBOL	CHEMICAL COMPOSITION
CuSn6	CW450K	Cu %	Zn %	Pb %	Fe %	Ni %	P %	Sn %
CuSn6	CW450K	rest	Max 0,2	Max 0,02	Max 0,10	Max 0,30	0,01-0,4	5,5-7,0

Physical properties

ALLOY	SYMBOL	DENSITY	COEFFICIENT OF THERMAL EXPANSION	SPECIFIC THERMAL CAPACITY	ELECTRICAL CONDUCTIVITY		THERMAL CONDUCTIVITY	MODULUS OF ELASTICITY
CuSn6	CW450K	g/cm³	10^-6/K	J/(g-K)	MS/m	IACS%	W/(m-K)	GPa
CuSn6	CW450K	8,8	18	0,377	>9	>15,5	75	102

Mechanical properties

DELIVERY CONDITION	MECHANICAL RESISTANCE RM	YIELD STRENGTH RP0.2	STANDARD ELONGATION A 50MM	OPTIMISED BENDING STRENGTH EFFICIENCY RP0.2	ELONGATION AFTER DETENSIONING A 50MM	HARDNESS HV* *
			Min	Min	Min
	MPa	MPa	%		%	HV
R350	350..420	<300*	45			80..120
R420	420..520	>350	22	350	29	120..170
R500	500..590	>450	15	410	22	16..190
R560	560..650	>520	10	490	15	180..210
R640	640..730	>590	5	570	12	200..230
R720	> 720	<650	-	620	4	>210
R850**	> 850	-	-	800	1,5	>240

Common dimensions:

*The specific weight is a theoretical weight and may differ from the actual weighed weight due to geometric tolerances set out in EN standards.

THICKNESS X WIDTH X LENGTH MM		WEIGHT kg/m

0,2 x 300 x 2.000		1,1
0,25 x 300 x 2.000		1,3
0,3 x 300 x 2.000		1,6
0,4 x 300 x 2.000		2,2
0,5 x 300 x 2.000		2,6
0,6 x 300 x 2.000		3,2
0,7 x 300 x 2.000		3,72
0,8 x 300 x 2.000		4,3
1,0 x 300 x 2.000		5,4
1,2 x 300 x 2.000		6,4
1,5 x 300 x 2.000		8,0
2,0 x 300 x 2.000		10,7
2,0 x 600 x 2.000		21,4
2,0 x 1000 x 2.000		36,6
2,5 x 300 x 2.000		13,4
3,0 x 300 x 2.000		16,0
3,0 x 600 x 2.000		32,0
3,0 x 1000 x 2.000		53,4
4,0 x 300 x 2.000		21,4
4,0 x 600 x 2.000		42,8
4,0 x 1000 x 2.000		71,2
5,0 x 300 x 2.000		26,4
5,0 x 600 x 2.000		52,8
5,0 x 1000 x 2.000		89,0
6,0 x 300 x 2.000		31,5
6,0 x 600 x 2.000		63,4
6,0 x 1000 x 2.000		106,8
8,0 x 300 x 2.000		42,3