KF-300S/KW-309

Basicity 2.5
The weld metal has an austenitic structure containing 23.5% Cr and 13% Ni.
KF-300S provides good operability and slag detachability, producing welds with an excellent bead appearance.

Catalog Packaging

▎Classification

AWS A5.9/A5.9MER309
JIS Z3323YS309
EN ISO 14343-AS 22 12 H
YB T5092H10Cr24Ni13

▎Applications and Features

  • The weld metal has an austenitic structure containing 23.5% Cr and 13% Ni.
  • KF-300S provides good operability and slag detachability, producing welds with an excellent bead appearance. It also delivers superior mechanical properties and corrosion resistance.
  • It is suitable for dissimilar welding of carbon steel to AISI 304 stainless steel, or for stainless steel surfacing on dissimilar steels.

▎Welding Position

焊接姿勢
焊接姿勢
焊接姿勢
焊接姿勢

▎Welding Instruction

Please refer to the precautions for submerged arc welding (SAW).

▎Applications

It is suitable for dissimilar welding of carbon steel to AISI 304 stainless steel, or for stainless steel surfacing on dissimilar steels.

▎Typical Chemical Composition of Weld Metal (wt%)

CSi
Mn
PSCrNi
0.070.341.600.0180.01124.1213.50

▎Typical Mechanical Properties of Weld Metal

Tensile Strength
N/mm²		Yield Strength
N/mm²		Elongation
%
56735642

▎Size and Polarity (DC+)

Diameter(mm)
2.02.43.2
Current(A)190~300275~350350~450

▎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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