Sanicro 71 (Covered electrodes)
Datasheet updated 2012-08-03 09:10:30 (supersedes all previous editions)
Sanicro 71 is a covered electrode with basic coating and normal metal recovery for welding of NiCrFe alloys, 9% Ni steels as well as nickel-alloyed steels for low temperature use. It is also used for dissimilar joints, such as stainless steel and NiCu alloys to carbon steel and nickel alloys. Sanicro 71 is characterized by little spatter and very good slag removal.
Standards
- ISO Ni Cr 15 Fe 6
- AWS ENiCrFe-3
Product standards
- EN ISO 14172
- ASME/AWS SFA5.11
Approvals
- TÜV
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 | max | max | min | max | max | max | max | |||
| 0.05 | 0.5 | 5.0 | 0.020 | 0.010 | 20 | 67 | 2.0 | 2.2 | 4.0 | 0.05 | 0.2 |
Microstructure all-weld metal
Fully austenitic.
Mechanical properties - all-weld metal
|
Temperature
|
oC
|
20
|
-196
|
|---|---|---|---|
|
Yield strength, RP0.2
|
MPa
|
390
|
-
|
|
Tensile strength, Rm
|
MPa
|
620
|
-
|
|
Elongation, A
|
%
|
35
|
-
|
|
Impact strength, Charpy V
|
J
|
79
|
65
|
Corrosion resistance - all-weld metal
Resistant to intergranular corrosion according to ASTM A262 practice E in the 'as-welded', stress relieved and solution annealed condition.
Recommended welding data
|
Diameter, mm
|
2.5
|
3.25
|
4.0
|
5.0
|
|---|---|---|---|---|
|
Current, A
|
45-60
|
70-95
|
90-120
|
120-150
|
Redrying electrodes when necessary: 200 oC (390 oF)/2h
Marking
| Marking at grip end |
Sanicro 71
|
|---|
Deposition data
Electrode data
| Electrode diameter, mm | 2.5 | 3.25 | 4.0 | 5.0 |
|---|---|---|---|---|
| Length, mm | 300 | 300 | 350 | 400 |
| Weights: kg/100 pcs |
1.7 |
2.9 |
5.0 |
8.7 |
| kg/box | 4.5 | 4.6 | 5.3 | 5.2 |
| Electrodes/box | 260 | 160 | 105 | 58 |
| Effective value kg weld metal/kg electrodes |
0.61 |
0.71 |
0.68 |
0.67 |
| Change value Electrodes/kg weld metal |
94 |
49 |
29 |
16 |
| Burn off time per electrode at max current, s |
46 |
59 |
76 |
101 |
Working data
| Welding positions, | all except vertical down | |
| Current/polarity | direct current/electrode positive. | |
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.
Send PDF via email
Article functions
Related information
Print this datasheet
Export to PDF
Download this datasheet as PDF or send by email.
Download as PDF
Send PDF via email