KNi-70B

Type of coating: Low hydrogen
KNi-70B is designed for welding in DC.

Catalog Packaging

▎Classification

AWS A5.11/A5.11M	ENiCrFe-2
JIS Z3224	DNiCrFe-2
EN 14172	ENi6092
GB T13814	ENiCrFe-2

▎Applications and Features

KNi-70B is designed for welding in DC.
It provides good heat and corrosion resistance at high temperature (<980°C).
It is ideal for welding Ni-Cr-Fe alloy, 9%Ni steel, forged/casting working pieces, and dissimilar materials (carbon steel, stainless steel, nickel or nickel-based alloy).

▎Welding Position

▎Welding Instruction

Clean the surface of the base metal before welding.
It is difficult for welding in V & O-H positions, so F welding is recommended.
Baking temperature should be between 350~400°C during 30~60 minutes before welding. No PWHT is required for base metal.
To avoid weave arc, make a short arc in low current.
To avoid porosity, use the back step method for welding. (Please refer to Appendix A)

▎Applications

Ideal for welding Ni-Cr-Fe alloy, 9%Ni steel, forged/casting working pieces, and dissimilar materials (carbon steel, stainless steel, nickel or nickel-based alloy).

▎Typical Chemical Composition of Weld Metal (wt %)

C	Si	Mn	P	S	Fe	Cr	Nb	Mo	Ni
0.08	0.40	1.90	0.009	0.008	9.20	14.20	1.76	2.40	68.00

▎Typical Mechanical Properties of Weld Metal

Tensile StrengthN/mm²	Yield Strength N/mm²	Elongation %	Charpy V-Notch ℃	Charpy V-Notch J
600	390	43	-196	72

▎Size and Suggested Operating Range (DC+)

Diameter(mm)	2.6	3.2	4.0	4.8
H (Amp)	60-85	80-120	100-150	140-180
V/O-H (Amp)	55-85	65-110	85-135	–

▎Certification

JISZ3323_TCTW08007

KUANG TAI METAL INDUSTRIAL CO., LTD.

廣泰金屬工業股份有限公司

No.20, Gongye Rd., Erzhen, Guantian Dist.
Tainan City 72042, Taiwan
TEL：886-6-6987615 FAX：886-6-6987315

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