详情
Description
AWS A5.1-2004
E7018-1
Diameter × Length (mm)
2.5 × 350, 3.2 × 350, 4.0 × 400, 5.0 × 400
Package
20kg/Carton
EASYARC™ 7018-1 is an iron powder low-hydrogen type electrode for all-position welding of mild and high strength low alloy steels. The easily controlled arc of EASYARC™ 7018-1 makes it easy to use on either DC or AC polarity.EASYARC™ 7018-1 offers excellent mechanical properties and notch toughness.
ADVANTAGE LINCOLN
-
Superb weld profiles in all positions
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Excellent AC/DC operator appeal
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Easy slag removal
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Excellent mechanical and toughness properties
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Manufactured under a quality system certified to ISO9001 requirements.
REDRYING
All controlled hydrogen electrodes will perform optimally when they are dry. Unopened Lincoln PERMAPACK's provide excellent protection against moisture pick-up in good storage conditions. Should re-drying be necessary, remove electrodes from the packet / container and spread thinly and evenly on racks in a ventilated oven. For electrodes that have had a short or mild exposure to the atmosphere then re-drying at 572°F(300°C) for 1 hour will be sufficient. For electrodes that have been exposed to longer or more aggressive conditions or for critical work re-drying at 572-662°F (300- 350°C) for 1-2 hours is recommended. After re-drying electrodes should be stored in a hot box.
APPROVALS
ABS: 4Y
LR: 4YH10
CCS: 4YH10
DEPOSIT COMPOSITION
|
Requirements AWS E7018-1 (%) Max. |
C |
Mn |
Si |
S |
P |
|
0.15 |
1.60 |
0.75 |
0.035 |
0.035 |
|
Typicle Values(%) |
0.089 |
1.25 |
0.38 |
0.009 |
0.024 |
TYPICAL APPLICATION
EASYARC™ 7018-1 is a multi-purpose electrode with excellent operator appeal. It is recommended for the critical welding of C-Mn, micro alloyed, and low alloy structural steels. Typical applications include the welding of offshore platforms, ship building, pressure vessels and heavy steel structure on bridges and buildings.
CONFORMANCE
AWS A5.1:E7018-1
ASME SFA-5.1
GUIDELINES FOR USE
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If necessary, re-dry electrodes at 350-380 ℃ for 30-60 minutes before use. Exposed electrodes should be stored at 100-150℃.
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All water, rust and oil should be completely removed from base material to prevent cracking and blowholes.
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Backstep method should be applied to prevent porosity during starting. Arc length should be kept as short as possible during welding.
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If weaving is required, the width should not exceed 3x the diameter of the electrode.
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