Détails
Mild steel low hydrogen stick electrode designed for cold re-strike and tacking
Traits
- AC polarity welding
- Low open circuit voltage operation
- Minimal spatter
- Capable of cold re-strikes
Disclaimers
Des informations de service
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. |