CHE58-1 Covered Welding Rod for High Tensile Steels AWS A5.1 E7018-1/E7018
BS EN ISO 2560-B-E49 18-1 A
CSA W48-06 E4918-1H8
JIS Z3212 D5016
GB/T 5117 E5018-1
Type of Covering:
Welding Position:
Type of Current:
Extra low hydrogen, potassium, iron powder
F, H, HF, OH, V
DCEP or AC
Features & Applications Its nominal deposited efficiency is about 110%. The weld metal shows excellent low
temperature toughness and high crack resistance. It is widely used in important structures
fabricated by equivalent tensile strength mild steels or low ally steels such as ships, boilers,
high pressure vessels, bridges, skyscrapers, offshore drilling platforms, nuclear power plants
and so on. It has been appointed to be honor consumables by almost all nuclear power
projects in China due to its faithworthy quality. Chemical Composition of Deposited Metal (%)
C
Mn*
Si
S
P
Cr*
Ni*
Mo*
V*
Standard
≤0.15
≤1.60
≤0.75
≤0.035
≤0.035
≤0.20
≤0.30
≤0.30
≤0.08
Typical
0.068
1.36
0.51
0.010
0.016
0.027
0.006
0.003
0.016
The total amount of elements with * one should be≤1.75% Mechanical Properties of Deposited Metal (AW)
Yield Strength
ReH (MPa)
Tensile Strength
Rm (MPa)
Elongation
A4 (%)
Impact Value (J)
-20℃
-30℃
-46℃
Standard
≥375
490-660
≥22
≥47
≥27
≥27
Typical
440
540
30
170
150
130
The standard of mechanical properties conforms to shipping institutions and the certificate of
inspection would follow it unless the purchaser has special requirement. Diffusible hydrogen in deposited metal: ≤5ml/100g (mercury process) X-ray radiographic inspection: Grade Ⅰ Sizes, Pieces & Recommended Current (DC+ or AC open circuit voltage ≥70V)
Size (mm)
2.5 x 300
2.5 x 350
3.2 x 350
3.2 x 450
4.0 x 400
4.0 x 450
5.0 x 400
5.0 x 450
Pieces (5kg)
≈290
≈248
≈145
≈114
≈84
≈75
≈51
≈45
Current
(A)
F, H
70-100
70-100
100-140
100-140
140-170
140-170
190-240
190-240
V, OH
60-70
60-70
80-110
80-110
130-150
130-150
—
—
Approvals
Institute
CCS
LR
ABS
BV
GL
DNV
BKI
KR
CWB
Grade
4YH5
3Ym, H15
4YH5
4YHHH
4YH10
4YH5
4YH10
3YH10
E4918-1-H8
Notice: 1) The rod should be baked at 400℃ for 1-2 hours before use.
2) The surfaces to be welded must be cleaned away impurities of oil contamination,
rust, moisture and so on.
3) Short Arc and narrow-gap welding is recommended.
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