KW-TCuNi

70%Cu-30%Ni Cupronickel and copper alloys. It can be used for surfacing steels and dissimilar welding of copper alloys with steels.

KS D 7044 : YCuNi-3
AWS A5.7 : ERCuNi
EN 14640 : S Cu 7158 (CuNi30)
JIS Z 3341 : YCuNi-3

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Description

Sizes (mm)	Standard		Welding Position	Shielding gas	Polarity
1.2~3.2	AWS A5.7 EN 14640 JIS Z 3341 KS D 7044	ERCuNi S Cu 7158 (CuNi30) YCuNi-3 YCuNi-3	F, HF, H, VU, VD, OH	Ar	DC(-)


Typical chemical composition of wire (%)
Cu	Si	Mn	P	S	Cr	Ni	Mo	Remark
Rem.	0.08	0.79	–	–	–	30.71	–	Ti : 0.30


Typical mechanical properties of all-weld metal
Y.S (MPa)	T.S (MPa)	EI. (%)	Hardness (HV)	IV (J)	PWHT
–	345	30	–	–	–

Product Dimensions and Weld Current Range


Welding Position	Sizes (mm)	Ampere (A)		Volt (V)
Welding Position	Sizes (mm)	Min.	Max.	Min.	Max.
All Positon	0.9mm	50	80	10	12
All Positon	1.2mm	70	120	10	12