Product name:KN-818C1
 
Classification:A5.5 / E8018-C1
 
 

  1. It is suitable for welding 540N/mm2 grade steel for low temperature resistance.
  2. It provides high deposition rate, smooth welding beads and X-ray quality welds.
  3. Weld metal contains2.5%Ni and good impact properties at -60°C.
  4. It is ideal for welding in LNG storage tanks or 2.5% Ni steel for low temperature resistance.

 

Welding Position
All Positions
Welding Instruction
(1) Clean up the contaminations on the steel.
(2) Dry the electrodes at 350~400°C for 60 minutes before welding.
(3) Keep arc as short as possible. Take the back step method to prevent porosity at arc start and re-start. (Please refer to Appendix A)
(4) High heat input will lower the impact value. Please carefully select the welding current.
(5) The preheat temperature for thick plate is 90~110°C.
TypicalChemical Composition of Weld Metal (wt %)
C
Si
Mn
P
S
Ni
 
0.080
0.64
0.98
0.014
0.008
2.55
 
TypicalMechanical Properties of Weld Metal (PWHT:620°Cx1Hr)
Tensile Strength
N/mm2(kgf/mm2)
Yield Strength
N/mm2(kgf/mm2)
Elongation
%
Charpy V-Notch
°C
J (kgf -m)
578(59.0)
480(49.0)
32
0
-60
84(8.6)
Size and SuggestedOperating Range (AC or DC+)
Diameter (mm) x Length(mm)
2.6x300
3.2x350
4.0x400
5.0x400
 
````````````````````````Amp
H
70~100
100~140
140~180
180~230
 
V-up/OH
60~90
90~130
120~160
 


No.8, Luke 3rd Rd., Luzhu Dist., Kaohsiung City 821, Taiwan (R.O.C.)      TEL:886-7-6955155      FAX:886-7-6955166

Copyright (C) Kuang Tai Metal Industrial Co., Ltd. All Rights Reserved.   Designed by GRNET