KM-55
KM-55

Shielding Gas: 100%CO₂
KM-55 is a copper coated wire for welding 490N/mm² grade steel.

Catalog Packaging

▎Classification

AWS A5.28/A5.28MER80S-G/ER55S-G
JIS Z3312YGW18
EN ISO 14341-AG50 0 C1 Z
GB T8110
ER55-G

▎Applications and Features

  • KM-55 is a copper-coated wire for welding 490N/mm² grade steel.
  • Excellent welding performance and mechanical properties under high heat input and interpass temperature.
  • Stable arc and low spatter at high current.
  • Ideal for welding steel structure, bridge, pressure vessel and shipbuilding.

▎Welding Position

焊接姿勢
焊接姿勢
焊接姿勢
焊接姿勢
焊接姿勢
焊接姿勢

▎Welding Instruction

Please refer to Appendix B.

▎Application

Ideal for welding steel structure, bridge, pressure vessel and shipbuilding.

▎Typical Chemical Composition of Wire (wt%)

CSi
Mn
PSTi
0.050.791.770.0100.0050.18

▎Typical Mechanical Properties of Weld Metal

Tensile Strength
N/mm²		Yield Strength
N/mm²
Elongation
%
Charpy V-Notch ℃
Charpy V-Notch J
579500280137

▎Size and Suggested Operating Range (DC+)

Diameter (mm)1.21.41.6
F/HF150~350A250~450A300~550A
H150~320A250~400A300~450A

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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