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CHT91K2
Flux Cored Wire for High Tensile Steel |
AWS A5.29 E91T1-K2C
GB 17493 E601T1-K2 |
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Description:
CHT91K2
is a titanium
type flux cored wire suitable for all position welding by CO2 gas shielding.
It shows excellent welding performance and it is used in structures
fabricated by 600Mpa grade high tensile steels, such as ships, pressure
vessels, machineries, petroleum & chemical industries, bridges, etc.
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Chemical
Composition of Deposited Metal(%)
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C |
Mn |
Si |
Ni |
Mo |
S |
P |
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Standard |
≤0.15 |
0.5-1.75 |
≤0.80 |
1.0-2.0 |
≤0.35 |
≤0.03 |
≤0.03 |
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Typical |
0.05 |
1.45 |
0.40 |
1.55 |
0.13 |
0.013 |
0.018 |
Mechanical Properties of Deposited Metal
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Yield Point
ReL
(MPa) |
Tensile Strength
Rm (MPa) |
Elongation
A (%) |
Impact Value (J) |
Shield Gas |
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-20℃ |
CO2 |
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Standard |
≥540 |
620-760 |
≥17 |
≥27 |
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Typical |
560 |
650 |
23 |
70 |
Recommended Current Range (DC+)
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Diameter（mm） |
1.2 |
1.4 |
1.6 |
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Current
（A） |
F |
120-300 |
150-380 |
180-430 |
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HF |
120-280 |
150-320 |
180-380 |
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V.OH |
120-260 |
150-270 |
180-280 |
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H |
120-280 |
150-320 |
180-330 |
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VD |
200-280 |
220-300 |
250-300 |
Remark
1) The pure of CO2 gas should be higher than 99.98%,
2) The flow of CO2 gas should be 20L-25L/minutes when welding,
3) The wire extension should be 1.5mm-2.5mm when welding.
4) Preheating is required if the thickness of welded piece is more than
20mm.
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