CHF101/CHW-S16
Flux/Wire Combination for Submerged Arc Welding
AWS A5.23 F8A2-EA2-A2
Description: CHF101/CHW-S16flux/wire
combination has excellence welding performance. The weld metal shows a fine
appearance and the deposited metal has a satisfactory low temperature
toughness and high crack resistance. Both AC and DC can be applied, when DC,
the wire should be contacted straight polarity. It is used to weld
550-700MPa important high strength steel structures, especially for spiral
or longitudinal welded huge diameter pipe made by X65, X70 & X80 steels. It
could be four wires welding at same time and the welding speed is
1.70m-2.00m per minute. Before welding, the base metal must clear away
impurities and the flux must be baked in a temperature of 300℃-350℃ for 1-2 hours.
Chemical Composition (%)
C
Mn
Si
S
P
Mo
Cu
Wire CHW-S16
(AWS A5.23 EA2)
Standad
0.05-0.17
1.2-1.7
≤0.20
≤0.025
≤0.025
0.45-0.65
0.35
Typical
0.07
1.20
0.15
0.010
0.011
0.53
0.10
Deposited Metal
Typical
0.06
1.15
0.40
0.006
0.016
0.42
0.08
Mechanical Properties of Deposited Metal
Yield Point
ReL (MPa)
Tensile Strength
Rm (MPa)
Elongation
A (%)
Impact Value (J)
-30℃
-40℃
Standard
≥470
550-700
≥20
≥27
__
Typical
510
610
26
80
50
Mechanical Properties of Deposited Metal of
Welded Joint
