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Concise Specification Table For Mild Steel Electrode

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Concise Specification Table For Mild Steel Electrode

Item Code Type of
Covering
Equivalent Norm Welding Position Type of Current 
CHE40 High titania, potassium AWS  A5.1
E6013
F,V,
OH,H
AC or DC
CHE412 High titania, sodium AWS  A5.1
E6012
F,V,
OH,H
AC or DC
CHE42 Lime titania JIS D4303
GB E4303
F,V,
OH,H
AC or DC
CHE421D Rutile, cellulose AWS  A5.1
E6013
F,VD,
OH,H
AC or DC
CHE421Fe18 Iron powder, titanium Similar to 
E6024
F,
HF
AC or DC
CHE43 Iron oxide, titania, potassium  AWS A5.1
E6019
F,V,
OH,H
AC or DC
CHE424 High iron oxide AWS A5.1
E6020
F,
HF
AC or DC
CHE424Fe16 High iron oxide, iron powder AWS A5.1
E6027
F,
HF
AC or DC
CHE425 High cellulose, potassium AWS A5.1
E6011
F,V,
OH,H
AC or DC+
CHE425G High cellulose, sodium AWS A5.1
E6010
F,VD,
OH,H
DC+
CHE425GX High cellulose, sodium AWS A5.1
E6010
F,VD,
OH,H
DC+
CHE426 Low hydrogen, potassium GB E4316
(Similar to E6016)
F,V,
OH,H
AC or DC+
CHE427 Low hydrogen, sodium GB E4315
(Similar to E6015)
F,V,
OH,H
DC+
CHE47 Low hydrogen, sodium GB E4315
(Similar to E6015)
F,V,
OH,H
DC+
CHE48 Low hydrogen, potassium, iron powder AWS A5.1
E6018
F,V,
OH,H
AC≥70V or DC+

Item Code Standard & Typical Chemical Composition of Deposited Metal (%) Approvals
C Mn Si S P Cr Ni Mo V  
CHE40 ≤0.20
0.076
≤1.20
0.35
≤1.00
0.22
≤0.035
0.022
≤0.040
0.026
CCS, LR, ABS, BV, GL, DNV, BKI, NK, CWB
CHE412 ≤0.20
0.08
≤1.20
0.50
≤1.00
0.35
≤0.035
0.020
≤0.040
0.026
 
CHE42 ≤0.20
0.067
≤1.20
0.40
≤1.00
0.18
≤0.035
0.019
≤0.040
0.022

0.015

0.006

0.012

0.012
CCS, LR, ABS,
BV, GL, DNV, NK
CHE421D ≤0.20
0.068
≤1.20
0.39
≤1.00
0.28
≤0.035
0.017
≤0.040
0.023
 
CHE421Fe18 ≤0.12
0.063
≤1.25
0.56
≤0.90
0.45
≤0.035
0.015
≤0.040
0.024
CCS, LR, ABS,
BV, GL, DNV, NK
CHE43 ≤0.20
0.094
≤1.20
0.51
≤1.00
0.27
≤0.035
0.018
≤0.040
0.028
CCS, LR, ABS
CHE424 ≤0.20
0.075
≤1.20
0.63
≤1.00
0.10
≤0.035
0.018
≤0.040
0.027
 
CHE424Fe16 ≤0.20
0.070
≤1.20
0.67
≤1.00
0.27
≤0.035
0.015
≤0.040
0.022
 
CHE425 ≤0.20
0.098
≤1.20
0.67
≤1.00
0.20
≤0.035
0.024
≤0.040
0.024
 
CHE425G ≤0.20
0.091
≤1.20
0.55
≤1.00
0.17
≤0.035
0.010
≤0.040
0.011
 
CHE425GX ≤0.20
0.085
≤1.20
0.56
≤1.00
0.19
≤0.035
0.007
≤0.040
0.011
 
CHE426
0.067
≤1.25
1.04
≤0.90
0.60
≤0.035
0.007
≤0.040
0.019
≤0.20
0.036
≤0.30
0.013
≤0.30
0.002
≤0.08
0.010
 
CHE427
0.076
≤1.25
0.87
≤0.90
0.41
≤0.035
0.010
≤0.040
0.020
≤0.20
0.035
≤0.30
0.013
≤0.30
0.002
≤0.08
0.010
 
CHE47
0.071
≤1.25
0.85
≤0.90
0.38
≤0.035
0.010
≤0.040
0.019

0.029

0.008

0.002

0.010
CCS,LR,ABS,
BV,GL,DNV,NK
CHE48 ≤0.03
0.028
≤0.60
0.56
≤0.40
0.33
≤0.015
0.010
≤0.025
0.016
≤0.20
0.047
≤0.30
0.022
≤0.30
0.010
≤0.08
0.014
 

Item Code Standard & Typical Mechanical Properties of Deposited Metal Applications
 Yield Point ReL
(MPa)
 Tensile Strength Rm
(MPa)
 Elongation A
(%)
 Akv Value
(J)
CHE40 ReH≥306
394
400-560
481
 A5(%)≥22
29
0℃ ≥47
80
Welding mild steel with normal strength particularly suitable for intermitent welding to sheet and small workpoces.
CHE412 ≥330
400
≥430
490
≥17
28
0℃≥47
55
Suitable for welding sheet structures in all position.
CHE42 ReH≥306
383
400-560
465
A5(%)≥22
31
-20℃≥47
 78
For welding structures with normal strength such as ships, machineries and pipes etc.
CHE421D ≥330
385
≥430
475
≥17
26
0℃
70
Vertical-down welding mild steel sheet structures, light structural frames, vehicles, etc.
CHE421Fe18 ReH≥306
404
400-560
486
A5(%)≥22
31
0℃≥47
87
Suitable for welding normal structures and ship structures made of mild steel, particularly suitable for flat and horizontal fillet and the welding efficiency is about 180%.
CHE43 ReH≥306
389
400-560
478
A5(%)≥22
29
0℃≥47
59
Suitable for welding ship hulls, pressure vessels, bridges as wll as structural fabrications.
CHE424 ≥330
370
≥430
470
≥22
26
0℃
70
For welding general mild steel structures, such as heavy machineries and construction machineries, etc.
CHE424Fe16 ≥330
345
≥430
440
≥22
32
 -30℃≥27
75
Flat and horizontal fillet welding ship hulls, bridges,and general structures of building.
CHE425 ≥330
405
≥430
500
≥22
30
 -30℃≥27
75
Suitable for vertical-down welding and lap welding for sheet structures.
CHE425G ≥330
400
≥430
500
≥22
29
 -30℃≥27
80
All position welding general structures, including vertical down welding, especially pipelines, vessels.
CHE425GX ≥330
390
≥430
520
≥24
30
 -30℃≥27
80
Suitable for vertical down welding root passes, hot passes, filler and cover passes as well as for capping of pipelines and similar structures.
CHE426 ≥330
440
≥420
550
≥22
31
 -30℃≥27
155
For welding important mild steel and low alloy steel structures.
CHE427 ≥330
420
≥420
520
≥22
32
 -30℃≥27
160
For welding important mild steel and low alloy steel structures.
CHE47 ReH≥306
413
400-560
507
A5(%)≥22
33
 -20℃≥27
182
For welding important mild steel and low alloy steel structures, e.g. ships.
CHE48 ≥330
400
≥430
500
A5(%)≥17
25
 -30℃≥27
95
For welding important mild steel and low alloy steel structures.


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