DETAILS
Mild Steel, Low Hydrogen • AWS E7018 H4R
Eigenschaften
- Improved coating integrity
- Extreme bendability
- Premium arc performance
- Excellent moisture resistance
- Clear puddle and a smooth arc
Typische Anwendungen
- Structure
- Ship Building
- Chemical Processing Structures
- Pressure piping
- Mild steel
Schweißpositionen
- All, except vertical down
Schutzgas
- Not Applicable
Besondere Eigenschaften
- Available to meet Buy America. Choose a Buy America MTS product from the list of Available Types or contact a Lincoln Electric representative
Service Informationen
Ergänzende Produkte
BEFORE USE, READ AND UNDERSTAND THE SAFETY DATA SHEET (SDS) FOR THIS PRODUCT AND SPECIFIC INFORMATION PRINTED ON THE PRODUCT CONTAINER. SDS-Suchseite
CONFORMANCE
| CONFORMANCES | SPECIFICATION | CLASSIFICATION |
|---|---|---|
| AWS | AWS A5.1 | E7018 H4R |
| ISO | ISO 2560-B | E4918 A H5 |
| ABS | ABS - Part 2 | 3YH5 |
| BV | BV - Chapter 5 | 3YHHH |
| CWB | CSA W48 | E4918 |
| DNV-GL | DNV - 2.9 | 3YH5 |
| LR | LR - Chapter 11 | 3YM H5 |
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 H4R Requirement | 400 (58) min. | 480 (70) min. | 22 min. | 27 (20) min. | |
| Typical Result, As-welded | 420-510 (60-74) | 510-600 (74-87) | 24-36 | 27-413 (20-304) | 82-91 |
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 | 1800F H2O - After 9 hrs at 80F/80%RH |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| E7018 H4R 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. | 4 max. | 0.3 max. | 0.4 max. |
| Typical Result | 0.04-0.07 | 0.02-0.06 | 1.08-1.51 | 0.04 max. | 0.01-0.05 | 0.009-0.016 | 0.004-0.011 | 0.41-0.66 | 0.01 max. | 1.15-1.59 | 1-4 | 0.1 max. | 0.2-0.4 |
TYPICAL OPERATING PROCEDURES
| Diameter | Polarity⁽¹⁾ |
Current
Amps |
|---|---|---|
| 3/32 in (2.4 mm) | DC+ | 70-110 |
| 3/32 in (2.4 mm) | AC | 80-120 |
| 1/8 in (3.2 mm) | DC+ | 90-160 |
| 1/8 in (3.2 mm) | AC | 100-160 |
| 5/32 in (4.0 mm) | DC+ | 130-210 |
| 5/32 in (4.0 mm) | AC | 140-210 |
| 3/16 in (4.8 mm) | DC+ | 180-300 |
| 3/16 in (4.8 mm) | AC | 200-300 |
| 7/32 in (5.6 mm) | DC+ | 250-330 |
| 7/32 in (5.6 mm) | AC | 270-370 |
| 1/4 in (6.4 mm) | DC+ | 300-400 |
| 1/4 in (6.4 mm) | AC | 325-420 |
NOTES
| Note |
|---|
| ⁽¹⁾ Preferred polarity is listed first. |
| Extreme bendability applies to 3/32, 1/8, and 5/32 in. diameters. |