DETAILS
Features
- capable of cold re-strike
- Low open circuit voltage operation
- Minimal spatter
Typical Applications
- General fabrication
- Tack and skip welds
- Thin section
Welding Positions
- All except vertical down
Shielding Gas
- Not Applicable
Special Features
- AC polarity welding
Disclaimers
Service Information
Documentation
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BEFORE USE, READ AND UNDERSTAND THE SAFETY DATA SHEET (SDS) FOR THIS PRODUCT AND SPECIFIC INFORMATION PRINTED ON THE PRODUCT CONTAINER. SDS Search page
See test result disclaimer
CONFORMANCE
| CONFORMANCES | SPECIFICATION | CLASSIFICATION |
|---|---|---|
| AWS | AWS A5.1 | E7018, E7018-H8 |
| CWB | CSA W48 | E4918-H8 |
MECHANICAL PROPERTIES
| Classification |
Yield Strength @ 0.2% Offset
MPa (ksi) |
Tensile Strength
MPa (ksi) |
Elongation
% |
Charpy V-Notch
J (ft-lbs) @ -30°C (-20°F) |
Hardness Rockwell B |
|---|---|---|---|---|---|
| E7018-H8 Requirement | 400 (58) min. | 480 (70) min. | 22 min. | 27 (20) min. | |
| Typical Result, As-welded | 460-580 (66-84) | 550-660 (79-95) | 22-34 | 27-136 (20-100) | 85-95 |
DEPOSIT COMPOSITION
| Classification | %C | %Cr | %Mn | %Mo | %Ni | %P | %S | %Si | %V | %Mn+Ni+Cr+Mo+V |
Diffusible Hydrogen
mL/100g Weld Metal |
1800F H2O - As received |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| E7018-H8 Requirement | 0.15 max. | 0.20 max. | 1.60 max. | 0.30 max. | 0.30 max. | 0.035 max. | 0.035 max. | 0.75 max. | 0.08 max. | 1.75 max. | 8 max. | 0.6 max. |
| Typical Result | 0.04-0.08 | 0.02-0.04 | 0.93-1.59 | 0.02 max. | 0.01-0.03 | 0.011-0.019 | 0.005-0.016 | 0.28-0.46 | 0.02-0.03 | 1.00-1.67 | 3-7 | 0.2 max. |
TYPICAL OPERATING PROCEDURES
| Diameter | Polarity⁽¹⁾ |
Current
Amps |
|---|---|---|
| 3/32 in (2.4 mm) | AC | 75-120 |
| 3/32 in (2.4 mm) | DC+ | 70-115 |
| 1/8 in (3.2 mm) | AC | 105-150 |
| 1/8 in (3.2 mm) | DC+ | 100-140 |
| 5/32 in (4.0 mm) | AC | 130-200 |
| 5/32 in (4.0 mm) | DC+ | 120-185 |
NOTES
| Note |
|---|
| ⁽¹⁾ Preferred polarity is listed first. |