AWS A5.29 E91T1-K2C
BS EN ISO 17632 T5021 5NiPC1H10
GB 17493 E601T1-K2
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.
Chemical
Composition of Deposited Metal(%)
C
Mn
Si
Ni
Mo
S
P
Standard
≤0.15
0.5-1.75
≤0.80
1.0-2.0
≤0.35
≤0.03
≤0.03
Typical
0.05
1.45
0.40
1.55
0.13
0.013
0.018
Mechanical Properties of Deposited Metal
Yield Point
ReL (MPa)
Tensile Strength
Rm (MPa)
Elongation
A4 (%)
Impact Value (J)
Shield Gas
-20℃
CO2
Standard
≥540
620-760
≥17
≥27
Typical
560
650
23
70
Recommended Current Range (DC+)
Diameter（mm）
1.2
1.4
1.6
Current （A）
F
120-300
150-380
180-430
HF
120-280
150-320
180-380
V.OH
120-260
150-270
180-280
H
120-280
150-320
180-330
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.
