Copper alloys0 pages

نسخه متنی

BROCADUR HIGH PREFORMANCE ALLOYS FOR RESISTANCE WELDING AND GENERAL INDUSTRY

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Trade name:		Brocadur CCZ	Brocudur CCB	Brocadur CCNB	Brocadur CCNB-EH	Brocadur NIBE	Brocadur B20	Brocadur CNCS
Chemical composition (in % of weight)	Cr	0.8						0.4
	Zr	0.1
	Co		2.0	1.0	1.0		0.4
	Ni			1.0	1.0	1.7	0.4	2.4
	Be		0.5	0.5	0.5	0.3	2.0
	Al
	Si							0.7
	P		0.2
	Others	max. 0.2	max. 0.2	max. 0.2	max. 0.2	max. 0.2	max. 0.2	max. 0.2
	Cu	remainder	remainder	remainder	remainder	remainder	remainder	remainder
Mechanical properties (standard values at 20° C):
Hardness Brinell	HB 30	135-170	230-260	230-260	265-285	210-250	320-370	180-220
Tensile strenght	N/mm2	380-470	720-820	720-820	750-850	700-760	1200-1300	500-700
0,2% - yield strenght	N/mm2	320-410	660-740	660-740	700-760	650-700	950-1050	450-600
Elongation A 5	%	14-18	10-14	10-14	8-12	10-14	2-5	min. 5
Modules of elasticity	N/mm2	125 x 103	135 x 103	135 x 103	135x 103	135 x 103	135 x 103	115 x 103
Softening temperature	°C	500	480	480	480	480	300	480
Physical properties (Standard values at 20° C):
Specific weight	g/cm3	8.9	8.8	8.8	8.8	8.8	8.3	8.7
Thermal conductivity	W/mK	320	250	250	260	290	120	160
Electrical conductivity	% IACS	80 (47 MS/m)	48 (28 MS/m)	48 (28 MS/m)	50 (29 MS/m)	69 (40 MS/m)	26 (15 MS/m)	48 (28 MS/m)
Thermal expansion coefficient	20-300C	17.0 x 107K	17.2x10 7K	17.2x10 7K	17.2 x 107K	17.2x 107K	17.0x 107K	16.0 x 107K
Forms of delivery:
Round drawn		0	0	0	0	0	0	0
Round forged		0	0	0	0	0	0	0
Flat, square, hexagon drawn		0	0	0	0	0	0	0
Flat, square forged		0	0	0	0	0	0	0
Forged plates		0	0	0	0	0	0	0
Cut from forged round bar / plate		0	0	0	0	0	0	0
Cut from premachined round bar / plate		0	0	0	0	0	0	0
Tube		0

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Note: N/mm2 = 1 MPa 1 MS/m = 1 m/Omm2 100% IACS = 58 MS/m

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