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SW-EM12K  
Specification£º AWS A5.17  F7A2-EM12K
ISO 14171-A-S2Si
Approved by£º CE,JIS
 Features and Applications    
SW-EM12K is submerged arc welding wire for welding of mild steel and 490Mpa high tensile steels. It is suitable for welding in shipbuilding, steel structure, steel pipeline and heavy machinery.
 Points for Attention    
Rid the welded part of rusty layer, damp, oil stain and dust, etc.
Always keep TIP in good condition.
Use the wire under the best possible conditions.
   An example of chemical Composition of Weld Wire(wt%)
C Mn Si P S
0.070

1.05

0.20 0.012 0.007

   An example of mechanical Properties of Weld Metal:(Flux:SJ301) 
Yield Strength
MPa
Tensile Strength
MPa
Elongation
%
Impact Value 
-20¡æ J
430 540 25 150

   Welding Parameter Suggestions: (DC+) 
Wire Diameter£¨mm£© Current Range
A
Voltage Range
V
Welding Speed
 ¡À0.5mm/s
Electrode extension
mm

2.0

300-400 26-29 5.5 13-19
2.4 350-450 27-30 6.0 19-32
2.8 400-500 27-30 6.0 19-32
3.0 400-500 27-30 6.5 25-38
3.2 425-525 27-30 6.5 25-38
4.0 475-575 27-31 7.0 25-38
4.8 530-630 27-31 7.0 25-38
5.0 550-650 27-31 7.0 25-38
6.4 700-800 28-32 8.5 38-50

   Package Size:
Wire Diameter£¨mm£© 2.0£¬2.5£¬3.0£¬3.2£¬4.0£¬4.5£¬4.8£¬5.0£¬6.4
Weight£¨kg£© 25£¬50£¬150£¬250£¬350£¬1000
Remark Above coule be made according to customer's requirement
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