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2019-06-03 浏览次数：

Standardization:		Numberical Symbol:
GB/T9460-2008		SCu5210
AWS A5.7:2007		ERCuSn-C
BS EN14640:2005		Cu 5210

Composition(standard values):		%
Cu incl.ag		bal.
Zn		0.20
Sn		7.00-9.00
Fe		0.10
P		0.10-0.35
Al		0.01
Pb		0.02
Total others		0.50

Physical properties of materials:
Density	Kg/m3	8.8
Melting range	℃	875-1025
Thermal conductivity	W/m.K	66
Electrical conductivity	S.m/mm2	6-8
Coefficient of thermal expansion	10^-6/K(20-300℃)	18.5

Standard values of the weld metal:
Elongation	%	20
Tensile strength	N/mm2	260
Notched bar impact work	J	32
Brinell hardness	HB 2.5/62.5	80

Applications:
Copper tin alloy of higher tin percentage-increased hardness for overlay welding.Particularly suitable for welding of copper materials, like copper,tin bronzes,especially used for joining of copper zinc alloys and steels.Suitable for repair welding of cast bronzes and for oven soldering.For multilayer welding on steel,pulsed arc welding is recommended.For large work pieces preheating is recommended.

Make up:
Diameter:0.64 - 0.80 - 1.00 - 1.20 - 1.60 -2.40
Spools:D100,D200,D300,D760,K300,KS300
Rods:1.60 - 9.6 mm x 914/1000 mm
Electrodes available.
Further make ups on request.