LKE-7010-A1
AWS A5.5 E7010-A1
HIGH CELLULOSE TYPE
Characteristics and Applications: LKE-7010-A1 is a high cellulose type electrode for DC(+) welding . The welding can be done in all positions with good crack resistance, deep penetration, stable arc, and good performance. It is especially suitable for welding of the pipes, high pressure pipes, oil tanks, and boilers due to its good X-ray soundness.
Notes on Usage: 1.Dry the electrodes at 70-100℃ for 30-60 minutes before use.
Typical chemical composition of weld metal (wt%) C 0.090
Mn 0.57
Si 0.20
P 0.014
S 0.011
Mo 0.52
Typical mechanical properties of weld metal YP N/mm2 480
TS N/mm2 570
EL % 28
PWHT 620℃x1hr
Sizes and recommended current range ( DC＜+＞) Diameter (mm) Length (mm) F Amps V&OH
2.6 300 50-80 40-70
3.2 350 80-120 70-110
Approvals： AWS E7010-A1
4.0 350 110-160 90-150
5.0 350 150-200 120-180
LKE-7018-A1
AWS A5.5 E7018-A1 DIN 8575 E Mo B 26 EN1599 E Mo B 32
IRON POWDER LOW HYDROGEN TYPE
Characteristics and Applications: LKE-7018-A1 is an iron powder low hydrogen type electrode for 490N/mm 2 high tensile steel. It provides high welding efficiency due to the addition iron powder. The weld metal contains 0.5% Mo, therefore it is suitable for chemical plants, petroleum refinery plants and other casting steels.
Notes on Usage: 1.Dry the electrodes at 350-400℃ for 60 minutes before use. 2. Take the backstep method at the arc starting. 3. Keep the arc as short as possible.
Typical chemical composition of weld metal (wt%) C 0.080
Mn 0.78
Si 0.54
P 0.012
S 0.013
Mo 0.56
Typical mechanical properties of weld metal YP N/mm2 490
TS N/mm2 575
EL % 31
PWHT 620℃x1hr
Sizes and recommended current range (AC or DC＜+＞) Diameter (mm) Length (mm) F Amps V&OH
3.2 350 90-140 80-120
4.0 400 140-190 120-160
5.0 400 190-240 -
Approvals： AWS E7018-A1
TPC B
LKE-8018-B2
JIS Z3223 DT2318 AWS A5.5 E8018-B2 DIN 8575 E CrMo1 B 26 EN1599 E CrMo1 B 32
IRON POWDER LOW HYDROGEN TYPE
Characteristics and Applications: LKE-8018-B2 is an iron powder low hydrogen electrode. The weld metal contains 1.25%Cr0.5%Mo that makes the electrodes more suitable for the welding of piping steels (STPA22,23, A335-P11, P12), casting steels (A217-WC6), and forging steels (A182-F11,F12).
Notes on Usage: 1.Dry the electrodes at 350-400℃ for 60 minutes before use. 2. Take the backstep method at the arc starting. 3. Keep the arc as short as possible.
Typical chemical composition of weld metal (wt%) C 0.080
Mn 0.80
Si 0.60
P 0.012
S 0.010
Cr 1.40
Mo 0.54
Typical mechanical properties of weld metal YP N/mm2 590
TS N/mm2 675
EL % 26
PWHT 690℃x1hr
Sizes and recommended current range (AC or DC＜+＞) Diameter (mm) Length (mm) F Amps V&OH
3.2 350 90-140 80-120
4.0 400 140-190 120-160
5.0 400 190-240 -
Approvals： AW S E8018-B2
TPC B
LKE-9018-B3
JIS Z3223 DT2418 AWS A5.5 E9018-B3 DIN 8575 E CrMo2 B 26 EN1599 E CrMo2 B 32
IRON POWDER LOW HYDROGEN TYPE
Characteristics and Applications: LKE-9018-B3 is an iron powder low hydrogen type electrode for low alloy heat resistance steel. The weld metal contains 2.25%Cr-1%Mo that makes the electrodes more suitable for the welding of piping steels (STPA24, A335-P22), boilers (STBA24), heat exchanger pipes (A182-F22, A336-F22) which the service temperature is at 550℃. Good creep rupture strength also can be obtained at high temperature.
Notes on Usage: 1.Dry the electrodes at 350-400℃ for 60 minutes before use. 2.Keep the arc as short as possible.
Typical chemical composition of weld metal (wt%) C 0.080
Mn 0.69
Si 0.70
P 0.013
S 0.011
Cr 2.32
Mo 1.07
Typical mechanical properties of weld metal YP N/mm2 620
TS N/mm2 725
EL % 24
PWHT 690℃x1hr
Sizes and recommended current range (AC or DC＜+＞) Diameter (mm) Length (mm) F Amps V&OH
3.2 350 90-140 80-120
4.0 400 140-190 120-160
Approvals： TPC B
5.0 400 190-240 -