|
| |
 |
CHF101GX/CHW-S9
Flux/Wire Combination for Submerged Arc Welding |
AWS A5.23M F55A3/EA4-A2
BS EN 756-S 46 3 FB S3Mo
ISO 14171-A-S 46 3 FB S3Mo
ISO 14171-B-S 55A 3 FB SU3M3
|
| |
|
|
Description:
CHF101GX/CHW-S9
flux/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 550MPa-700MPa
tensile strength steel structures, especially for spiral or longitudinal
welded huge diameter pipe made by X65 & X70 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-S9
(AWS A5.23M EA4) |
Standad |
0.05-0.17 |
1.20-1.70 |
≤0.20 |
≤0.025 |
≤0.025 |
0.45-0.65 |
0.35 |
|
Typical |
0.073 |
1.28 |
0.122 |
0.004 |
0.009 |
0.571 |
0.19 |
|
Deposited Metal |
Typical |
0.07 |
1.16 |
0.47 |
0.010 |
0.012 |
0.35 |
0.15 |
Mechanical Properties of Deposited Metal
|
|
Yield
Point
ReL
(MPa) |
Tensile
Strength
Rm (MPa) |
Elongation
A4 (%) |
Impact
Value (J) |
|
-30℃ |
|
Standard |
≥470 |
550-750 |
≥20 |
≥27 |
|
Typical |
540 |
630 |
24 |
80 |
Mechanical Properties of
Deposited Metal of Welded Joint
(Base metal is X70 plate,
Typical)
|
Tensile Strength
Rm (MPa) |
Impact Value (J) |
Cut Acreage |
Hardness (Hv) |
|
-20℃ |
(SA, %) |
Weld Metal |
HAZ |
|
630 |
140 |
80 |
250 |
240 |
|
