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CHF43/CHW-S1
CH43/CHW-S1 flux /wire combination has very nice performance in welding,arc is stabile,slag detachability is easy and weld metal shows a fine appearance,Both AC and DC can be applied,when using DC, the wire should be contacted straight polarity,It is suitable for submerged arc welding structures fabricated by 450Mpa grade steel,e.g. LPG cylinder as well as ship strucures as same strengh. Before welding,the workpieces must clear away impurities and flux must be baked in temperature of 200℃-250℃ for 1-1.5 hours.
Chemical Composition (%)
|
|
C
|
Mn
|
Si
|
S
|
P
|
Cu
|
|
CHW-S1
(EL12)
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Standard
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0.05-0.15
|
0.25-0.60
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≤0.07
|
≤0.035
|
≤0.035
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≤0.35
|
|
Typical
|
0.065
|
0.45
|
0.03
|
0.020
|
0.016
|
0.09
|
|
Deposited
Metal
|
Typical
|
0.045
|
0.98
|
0.41
|
0.020
|
0.025
|
0.20
|
Mechanical Properties of Deposited metal
|
|
Yidld Point
ós (Mpa)
|
Tensile Strengh
ób (Mpa)
|
Elongation
δ5（%）
|
Impact Value(J)
|
|
-20℃
|
|
Standard
|
≥305
|
400-560
|
≥22
|
≥34
|
|
Typical
|
365
|
460
|
32
|
87
|
Aprovals: CCS 2T3M LR2T,3M ABS2T,3M BV A2T,A3M GL2T DNV IIT/IIIM
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