Sanicro 69 (Covered electrodes)
Datasheet updated 2012-08-03 09:09:46 (supersedes all previous editions)
Sanicro 69 is a covered electrode with basic coating for corrosion-resistant overlays on most low-alloy and stainless steels. It is also used for welding of alloys of Alloy 690 type (e.g. Sanicro 69) and dissimilar joints.
The electrode has good welding properties and is well suited to joint welding, as well as overlay welding.
Standards
- AWS ENiCrFe-7
- EN number Ni 6152
Product standards
- EN ISO 14172
- AWS A5.11
Chemical composition - all-weld metal
The following data is valid for non heat treated all-weld metal.
| C | Si | Mn |
P
|
S
|
Cr | Ni | Mo | Nb | Fe | Co | Cu |
|---|---|---|---|---|---|---|---|---|---|---|---|
| max | max | min | max | max | max | ||||||
| 0.03 | 0.4 | 2.0 |
0.020
|
0.015
|
30 | 50 | 0.3 | 1.5 | 9 | 0.05 | 0.2 |
Microstructure - all-weld metal
Fully austenitic
Mechanical properties - all-weld metal
|
Temperature
|
oC
|
20*
|
360*
|
|---|---|---|---|
|
Yield strength, RP0.2
|
MPa
|
420
|
330
|
|
Tensile strength, Rm
|
MPa
|
650
|
520
|
|
Elongation, A
|
%
|
43
|
39
|
|
Impact strength, Charpy V
|
J
|
115
|
-
|
* After post-weld heat treatment at 610°C for 16 hours.
Corrosion resistance - all-weld metal
Resistant to intergranular stress corrosion cracking.
Recommended welding data
| Diameter, mm | 2.5 | 3.25 | 4.0 |
|---|---|---|---|
| Current, A | 50-70 | 70-100 | 105-145 |
Redrying electrodes when necessary: 250oC (480 oF)/2h
Marking
Marking at grip end: Sanicro 69
Disclaimer: Recommendations are for guidance only, and the suitability of a material for a specific application can be confirmed only when we know the actual service conditions. Continuous development may necessitate changes in technical data without notice. This datasheet is only valid for Sandvik materials.
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