- Applications
- Single-layer and multi-layer welding of shipbuilngs.
- Characteristics on Usage
-
- - As the penetration deep, it is suitable for welding of thick plate in both side single-layer welding.
lmpact value (or mechanical priperties) of weld metal and crack resistibility are excellent.
Also applicable to one-side welding. As the consumption of flux is low, lt is economical.
- Notes on Usage
-
- - Dry the flux at 300~350℃ (572~662℉) for 60 minutes before use.
- - Pay attention to welding voltage. Excessive welding voltage causes deterioration of joint properties.
- - Add new flux periodically to prevent the weld defects and bad bead appearance which occurs when continuously reusing the flux.
- - Weld pass should be limited to 3 or 4 passes. (please inquire of the manufactures when welding more than 5 passes)
- Typical Welding Conditions
-
Typical Welding Conditions
Th
(mm) |
Dia
(mm) |
Groove Design |
Pass
(Run NO.) |
Amp
(A) |
Volt
(V) |
Speed
(cm/min) |
Remarks |
| 25 |
4.0 |
|
1~13 |
570 |
30 |
40 |
AWS
A5.17 |
| 25 |
4.8 |
|
1st |
950 |
34 |
40 |
BS SL |
| 2st |
1100 |
37 |
30 |
- Typical Chemical Composition of All-Weld-Metal (%)
-
Typical Chemical Composition of All-Weld-Metal (%)
| C |
Si |
Mn |
P |
S |
BM |
Th(mm) |
| 0.07 |
0.40 |
1.40 |
0.028 |
0.015 |
SS400 |
25 |
| 0.08 |
0.32 |
1.29 |
0.015 |
0.014 |
AH36 |
25 |
- Typical Mechanical Properties of All-Weld-Metal
-
Typical Mechanical Properties of All-Weld-Metal
Y.S
(Ibs/in²) |
T.S
(Ibs/in²) |
EL
(%) |
CVN-lmpact Value J (ft·lbs) |
BM |
Th
(mm) |
| -20℃ |
-51℃ |
| 490 (50) |
560 (57) |
31 |
- |
70 (7) |
SS400 |
25 |
| - |
570(58) |
- |
40(4) |
- |
AH36 |
44 |