KMS-312

Shielding Gas: Ar+1~2%O2(CO2)
Weld metal is austenitic structure with 29%Cr-9%Ni.
Suitable for welding tool steels, hard to weld steels, cast and wrought alloys and dissimilar

Catalog Packaging

▎Classification

AWS A5.9/A5.9M	ER312
JIS Z3321	YS312
EN 14343-A	G 25 9
YB T5092	H15Cr30Ni9

▎Applications and Features

Weld metal is austenitic structure with 29%Cr-9%Ni.
High Cr content provides excellent corrosion resistance.
High ferrite level in its austenitic structure provides better crack resistance.
Suitable for welding tool steels, hard to weld steels, cast and wrought alloys and dissimilar

▎Welding Position

▎Welding Instruction

Weld metal becomes brittle at high service temperature or interpass temperature
Use Ar+1~2%O2 for spray transfer and Ar+1~2%CO2 for short-circuit transfer.
For welding dissimilar alloy, please refer to Appendix I.
For other instructions, please refer to Appendix B and F .

▎Application

Suitable for welding tool steels, hard to weld steels, cast and wrought alloys and dissimilar alloy.

▎Typical Chemical Composition of Weld Metal (wt%)

C	Si	Mn	P	S	Cr	Ni
0.12	0.49	1.62	0.012	0.011	28.98	10.09

▎Typical Mechanical Properties of Weld Metal

Tensile Strength N/mm²	Yield Strength N/mm²	Elongation %
740	600	25

▎Size and Suggested Operating Range (DC+)

Diameter (mm)	0.8	0.9	1.0	1.2	1.4	1.6
Ar+1~2%CO2	40-120A 15-20V	60-140A 15-21V	80-160A 16-22V	100-210A 17-22V	–	–
Ar+1~2%O2	160-210A 24-28V	170-260A 24-30V	180-280A 24-30V	200-300A 24-30V	210-320A 24-32V	220-330A 24-32V

▎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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