Diameters / Packaging
Diameters |
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DETAILS
Designed for vertical down, hot, fill and cap passes on standard cross-country pipelines and arctic grade pipe. Recommended for API Pipe Grades X42 up to undermatching X70.
Features
- A good choice for weathering steels
- Handles poor fit-up in the vertical up position
- Produces a nickel alloyed weld deposit (1.0-2.0%)
- Capable of meeting H8 diffusible hydrogen requirements
Typical Applications
- Offshore welding applications
- Roundabout groove welds on heavy wall tubular
Welding Positions
- All
Shielding Gas
- N/A
Service Information
BEFORE USE, READ AND UNDERSTAND THE SAFETY DATA SHEET (SDS) FOR THIS PRODUCT AND SPECIFIC INFORMATION PRINTED ON THE PRODUCT CONTAINER. SDS Search page
CONFORMANCE
CONFORMANCES | SPECIFICATION | CLASSIFICATION |
---|---|---|
AWS | AWS A5.29 | E71T8-K2 |
AWS | AWS A5.36 | E71T8-A2-K2 |
MECHANICAL PROPERTIES
Classification | Polarity |
Yield Strength @ 0.2% Offset
MPa (ksi) |
Tensile Strength
MPa (ksi) |
Elongation
% |
Charpy V-Notch
J (ft-lbs) @ -30°C (-20°F) |
---|---|---|---|---|---|
E71T8-K2 Requirement | DC- | 400 (58) min. | 480-620 (70-90) | 20 min. | 27 (20) min. |
E71T8-A2-K2 Requirement | DC- | 400 (58) min. | 480-660 (70-95) | 22 min. | 27 (20) min. |
Typical Result, As-welded | DC- | 410 (59) | 510-590 (73-85) | 27-30 | 121-298 (89-220) |
DEPOSIT COMPOSITION
Classification | Polarity | %Al | %B | %C | %Cr | %Mn | %Mo | %Ni | %P | %S | %Si | %V |
---|---|---|---|---|---|---|---|---|---|---|---|---|
E71T8-K2 Requirement | DC- | 1.8 max. | 0.15 max. | 0.15 max. | 0.50 - 1.75 | 0.35 max. | 1.00 - 2.00 | 0.030 max. | 0.030 max. | 0.80 max. | 0.05 max. | |
E71T8-A2-K2 Requirement | DC- | 1.8 max. | 0.15 max. | 0.15 max. | 0.50 - 1.75 | 0.35 max. | 1.00 - 2.00 | 0.030 max. | 0.030 max. | 0.80 max. | 0.05 max. | |
Typical Result | DC- | 0.7-1.0 | 0.001 max. | 0.05-0.08 | 0.10-0.15 | 0.73-0.86 | 0.01-0.03 | 1.03-1.30 | 0.005-0.011 | 0.004 max. | 0.07-0.11 | 0.003 max. |