Diameters / Packaging
Diameters |
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DETAILS
Features
- Low hydrogen, vertical up capability on X70 grade pipe
- Charpy V-Notch impact toughness tested to -46°C (-50°F)
Typical Applications
- Fill and cap pass welding of up to X70 grade pipe
Welding Positions
- All except vertical down
Shielding Gas
- Not Applicable
Special Features
- Q2 Lot® - Control and Tested - Lot certificate available online
Disclaimers
Service Information
Documentation
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 | E8018-G H4R |
ISO | ISO 2560-A | E 50 6 Mn1Ni B 3 2 H5 |
MECHANICAL PROPERTIES
Classification |
Yield Strength @ 0.2% Offset
MPa (ksi) |
Tensile Strength
MPa (ksi) |
Elongation
% |
Charpy V-Notch
J (ft-lbs) @ -29°C (-20°F) |
Charpy V-Notch
J (ft-lbs) @ -45°C (-50°F) |
---|---|---|---|---|---|
E8018-G H4R Requirement | 460 (67) min. | 550 (80) min. | 19 min. | ||
Typical Result, As-welded | 580-610 (84-88) | 650-710 (94-102) | 23-28 | 140-175 (103-129) | 100-150 (74-111) |
DEPOSIT COMPOSITION
Classification | %Cr | %Cu | %Mn | %Mo | %Nb | %Ni | %P | %S | %Si | %V |
Diffusible Hydrogen
mL/100g Weld Metal |
1800F H2O - As received | 1800F H2O - After 9 hrs at 80F/80%RH |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
E8018-G H4R Requirement | 0.30 min. * | 0.20 min. * | 1.00 min. * | 0.20 min. * | 0.50 min. * | 0.03 max. | 0.03 max. | 0.80 min. * | 0.10 min. * | 4 max. | 0.2 max. | 0.4 max. | |
Typical Result | 0.04-0.05 | 0.03-0.05 | 1.65-1.80 | 0.09-0.11 | 0.01-0.02 | 0.84-0.90 | 0.01 max. | 0.00 max. | 0.45-0.55 | 0.01-0.03 | 3 max. | 0.1 max. | 0.2-0.4 |
TYPICAL OPERATING PROCEDURES
Diameter | Polarity⁽¹⁾ |
Current
Amps |
---|---|---|
3.2 mm (1/8 in) | DC+ | 80-145 |
3.2 mm (1/8 in) | AC | 90-155 |
4.0 mm (5/32 in) | DC+ | 120-185 |
4.0 mm (5/32 in) | AC | 130-195 |
NOTES
Note |
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* To meet the requirements of a "G" classification, the chemical composition of the weld deposit must meet the minimum requirement for one or more of these elements. |
⁽¹⁾ Preferred polarity is listed first. |