Introduction
The AWS E7018 welding electrode, often simply referred to as E7018, is a commonly used welding rod in the field of arc welding. This electrode is classified under the American Welding Society (AWS) A5.1 standard and is recognized for its versatility and strength in various welding applications, Suitable for welding low alloy steel structures with corresponding tensile strength.
Standard & Typical Chemical Composition of Deposited Metal (%)
Chemical Composition | C | Mn | Si | S | P | Cr | Ni | Mo | V | Cu |
Specification | - | ≥1.00 | ≥0.80 | ≤0.03 | ≤0.03 | ≥0.30 | ≥0.50 | ≥0.20 | ≥0.10 | ≥0.20 |
Actual result | 0.067 | 1.30 | 0.50 | 0.008 | 0.012 | 0.012 | 1.20 | 0.003 | 0.01 | 0.015 |
Standard & Typical Mechanical Properties of Deposited Metal (AW)
Test Item | Postweld Condition | Yield Point ReL (MPa) | Tensile Strength Rm(MPa) | Elongation A4(%) | Akv Value (J) |
Specitication | PWHT | ≥390 | ≥490 | ≥22 | - |
Actual Result | 620℃X1h | 470 | 580 | 28 | -40℃ 100 |
Size and Current (AC≥70V or DC+)
Dia.(mm) | 2.0 | 2.5 | 3.2 | 4.0 | 5.0 |
Length(mm) | 300 | 300 | 350 | 400 | 400 |
Current(A) | 50-80 | 70-110 | 100-140 | 140-180 | 190-240 |
