KL-718A1

Type of coating: Iron powder low hydrogen type
KL-718A1 is suitable for welding 490N/mm2
grade steel with。It is ideal for welding high temperature/pressure steel pipes, heat exchanger steel pipes, rolled
steel and forged steel.

Catalog Packaging

▎Classification

AWS A 5.5	E7018-A1
JIS Z3223	E4918-1M3
EN 3580-A	E Mo B
GB T 5118	E5018-A1

▎Applications and Features

KL-718A1 is suitable for welding 490N/mm2
grade steel with 0.5% Mo.
It provides high deposition rate and good weldability
It is ideal for welding high temperature/pressure steel pipes, heat exchanger steel pipes, rolled
steel and forged 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).
Preheat and interpass temperature: 100~200°C, PWHT: 600~635°C.

▎Application

It is ideal for welding high temperature/pressure steel pipes, heat exchanger steel pipes, rolled steel and forged steel.

▎Typical Chemical Composition of Weld Metal (wt%)

C	Si	Mn	P	S	Mo
0.080	0.54	0.78	0.012	0.011	0.56

▎Typical Mechanical Properties of Weld Metal

PWHT	Tensile Strength N/mm2	Yield Strength N/mm2	Elongation %
620℃ 1小時	570	490	31

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

	Diameter (mm) x Length(mm)	3.2×350	4.0×400	5.0×400
Amp	F	90~140	140-190	180-240
Amp	V-up/OH	80~120	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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