KN-818C3

Type of coating: Iron powder low hydrogen type。
KN-818C3 is suitable for welding 540N/mm2 grade steel for low temperature resistance.。
It is ideal for welding in ASTM A226 (A, B), A235 (F, G), A236(C, E, F) and A302 steel。

Catalog Packaging

▎Classification

AWS A 5.5	E8018-C3 /E5518-C3
JIS Z3211	E5518-N2
EN 2560-A	E46 4 1Ni B
GB T5118	E5518-C3

▎Applications and Features

(1) KN-818C3 is suitable for welding 540N/mm2 grade steel for low temperature resistance.
It provides high deposition rate, good mechanical properties and X-ray quality welds.
Weld metal contains 1.0%Ni-0.20%Mo and good impact properties at -40°C.
It is ideal for welding in ASTM A226 (A, B), A235 (F, G), A236(C, E, F) and A302 steel.

▎Welding Position

▎Welding Instruction

Clean up the contaminations on the steel.
Dry the electrodes at 350~400°C for 60 minutes before welding.
Keep arc as short as possible. Take the back step method to prevent porosity at arc start and re-start. (Please refer to Appendix A).
High heat input will lower the impact value. Please carefully select the welding current.
The preheat temperature for thick plate is 90~120°C.

▎Application

It is ideal for welding in ASTM A226 (A, B), A235 (F, G), A236(C, E, F) and A302 steel.

▎Typical Chemical Composition of Weld Metal (wt%)

C	Si	Mn	P	S	Ni
0.07	0.62	0.90	0.013	0.012	1.02

▎Typical Mechanical Properties of Weld Metal

Tensile Strength N/mm²	Yield Strength N/mm²	Elongation %	Charpy V-Notch ℃	Charpy V-Notch J
560	470	29	-40 -45	128 118

▎Size and Suggested Operating Range (AC or DC±)

	Diameter (mm	2.6	3.2	4.0	5.0
Amp	H	70-100	100-140	140-180	180-230
Amp	V-up/OH	60-90	90-130	120-160	–

▎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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