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Description and Applications |
HM312 is a gas metal arc welding wire to be used with Ar
+ 0.5～2% O2 shield gas. Metal deposits are high in
ferrite structure. Its cracking and oxidizing resistance
are excellent.
Welding of 29% Cr - 9% Ni cast iron, stainless steels,
carbon steels, and high Ni alloy steel dissimilar
materials. |
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Guideline in Usage |
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When high
X-ray quality is required, stable spray transfer
mode should be maintained with low current and
slow welding speed using a pulsed arc and power
source. |
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Typical
Chemical Composition of Weld Metal（％） |
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C |
Si |
Mn |
P |
S |
Cr |
Ni |
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0.11 |
0.41 |
1.37 |
0.003 |
0.020 |
30.2 |
10.1 |
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Typical Mechanical Properties of Weld Metal |
Tensile Strength
N/mm2 |
Elongation
％ |
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700 |
34 |
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Size & Recommended Current Range (AC) |
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0.9 / 1.0 |
1.2 |
1.6 |
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Current (Amp) |
70~300 |
100~350 |
120~350 |
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