KFX-71M

Shielding Gas:100%CO2/80%Ar+20%CO2

KFX-71M is suitable for welding 490N/mm² grade steel. Good mechanical properties, crack resistance, less fume, stable arc, good slag removal, good bead appearance and excellent X-ray quality welds.

Catalog Packaging

▎Classification

AWS A5.20/A5.20M	E71T-1C(M)/E491T-1C(M)
JIS Z3313	T49J0T1-1 C(M)A-U
EN ISO 17632-A	T42 2 P C1(M21) 1 H10
GB T10045	T49 2 T1-1 C1(M21) H10

▎Applications and Features

KFX-71M is suitable for welding 490N/mm² grade steel.
Good mechanical properties, crack resistance, less fume, stable arc, good slag removal, good bead appearance and excellent X-ray quality welds.
Ideal for welding ship-building, tank, construction machine, steel structure and bridge.

▎Welding position

▎Welding Instruction

Please refer to Appendix D.

▎Application

Ideal for welding ship-building, tank, construction machine, steel structure and bridge.

▎Typical Chemical Composition of Weld Metal (wt%)

保護氣體	C	Si	Mn	P	S
C1	0.04	0.714	1.33	0.0155	0.0107
M21	0.03	0.722	1.57	0.0136	0.0085

▎Typical Mechanical Properties of Weld Metal

Shielding Gas	Tensile Strength N/mm²	Yield Strength N/mm²	Elongation %	Charpy V-Notch ℃	Charpy V-Notch J
C1	612	585	28	-20	89
M21	650	594	26	-20	75

▎Size and Suggested Operating Range (DC+)

Diameter (mm)	1.2	1.4	1.6
F/HF	140-300A 23-36V	150-350A 22-34V	200-450A 28-42V
H	140-280A 22-33V	150-280A 22-32V	220-280A 23-29V
V-up/OH	140-220A 22-28V	150-230A 22-28V	160-280A 22-28V

▎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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