AWS E9018-B3 is a kind of low hydrogen sodium type welding electrode, suitable for fabricating equipments of chemical and petroleum industries as well as high temperature, high pressure pipes, which is fabricated by Cr2.5Mo low alloy and work temperature lower than 550º C
Application
Low alloy steel welding electrode AWS E9018-B3 mainly used in welding of medium carbon steel structures and low alloy steel structures.
Instruction
1. The oil stains and rust on the welding should be cleared away.
2. Pls use stainless steel brush cleaning bead to avoid iron mied affacting weld quality.
3. Pls Dry 60 minutes at 300-350ºC before welding.
4. Take out a small quantity into 100-150ºC drying cylinder, when operation.
5. Do not carry electrode over half-day using quantities.
6.When swing the electrode, swing width should be within 2.5 times of the electrode diameter.
7. Try to keep short arc and low current, in order to reduce creazing and improve toughness.
Chemical Composition of Deposited Metal(%) |
C |
Mn |
Si |
S |
P |
Cr |
Mo |
0.05-0.12 |
≤0.90 |
≤0.80 |
≤0.030 |
≤0.030 |
2.00-2.50 |
0.90-1.20 |
0.080 |
0.75 |
0.24 |
0.010 |
0.012 |
2.34 |
1.14 |
Typical Mechanical Properties of Deposited Metal |
Yield Point Rel(Mpa) |
Tensile Stregth Rm(Mpa) |
Elongation A(%) |
AKv Value (J) |
|
|
|
≥530 |
≥620 |
≥17 |
- |
|
|
|
580 |
680 |
20 |
27ºC 180 |
|
|
|
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