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DETAILS
Features
- Designed to produce weld deposits with 620 MPa (90 ksi) tensile strength
Typical Applications
- High strength steel, such as HY-80, HY-90 and ASTM A514
- Cross country pipe repair
- DC welding
Welding Positions
- All except vertical down
Disclaimers
Service Information
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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 A5.5 | E9018M H4R |
| ABS | AWS A5.5 | E9018M H4R |
| CWB | CWB AWS A5.5 | E6218M-H4R (E9018M-H4R) |
MECHANICAL PROPERTIES
| Classification |
Yield Strength @ 0.2% Offset
MPa (ksi) |
Tensile Strength
MPa (ksi) |
Elongation
% |
Charpy V-Notch
J (ft-lbs) @ -50°C (-60°F) |
Hardness Rockwell B |
|---|---|---|---|---|---|
| E9018M H4R Requirement | 540-620 (78-90) | 620 (90) min. | 24 min. | 27 (20) min. | |
| Typical Result, As-welded | 560-610 (81-88) | 640-690 (93-99) | 24-27 | 31-114 (23-84) | 94-97 |
DEPOSIT COMPOSITION
| Classification | %C | %Cr | %Mn | %Mo | %Ni | %P | %S | %Si | %V |
Diffusible Hydrogen
mL/100g Weld Metal |
1800F H2O - As received | 1800F H2O - After 9 hrs at 80F/80%RH |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| E9018M H4R Requirement | 0.10 max. | 0.15 max. | 0.60 - 1.25 | 0.35 max. | 1.40 - 1.80 | 0.030 max. | 0.030 max. | 0.80 max. | 0.05 max. | 4 max. | 0.15 max. | 0.4 max. |
| Typical Result | 0.05-0.06 | 0.04-0.12 | 1.01-1.22 | 0.30-0.35 | 1.50-1.76 | 0.009-0.014 | 0.005-0.009 | 0.33-0.43 | 0.01 max. | 1.0-3.0 | 0.01-0.11 | 0.1-0.4 |
TYPICAL OPERATING PROCEDURES
| Diameter | Polarity |
Current
Amps |
|---|---|---|
| 3/32 in (2.4 mm) | DC+ | 70-110 |
| 1/8 in (3.2 mm) | DC+ | 90-160 |
| 5/32 in (4.0 mm) | DC+ | 130-210 |
| 3/16 in (4.8 mm) | DC+ | 180-300 |