coated electrode, size: 2,0 mm Ø, 300 mm long, 50 - 80 A, content = 237 pcs/ 4,0 kg, DIN 8556: E 29 9 MPR 26 170, material number: corresponds 1.4337, AWS/ASME SFA-5.4: similar ER 312 - 16, NF A 81 -343: EZ 29.9 R 170 36 X.
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Rutile coated high performance electrode with 170 % output for welding of different types of steels and for build-up welding; weld metal of ferritic-austenitic chrome-nickel steel; scale resistant up to +1000°C.
DIN 8556: E 29 9 MPR 26 170, material number: corresponds to 1.4337, AWS/ASME SFA-5.4: similar to ER 312 - 16, NF A 81 -343: EZ 29.9 R 170 36 X.
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Most important applications
Corrosion-resistant steel of similar type and cast steel, e.g. 1.4762 (X 10 CrAl 24)- 1.4085 (G-X 70 Cr 29): steel that is difficult to weld, e.g. construction steel of higher strength, manganese hard steel and joints with high-alloy steel; repairs and wear-resistant coatings.
r
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| Directional analysis of the pure weld metal in % |
| C |
Si |
Mn |
Cr |
Ni |
| 0,04 |
1,2 |
0,8 |
29 |
9 |
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Microstructure
ferristic austenitic
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Special notes
The favourable coefficient of thermal expansion due to the high content of delta ferrite in the weld metal reduces the residual stresses in black-white joints and increases the safety against hot cracks. In the work-hardened condition, the weld metal is particularly resistant to wear. MMA can be welded on top, very easy ignition and re-ignition; high current-carrying capacity; high deposition rate, particularly suitable for large-area, wear-resistant build-up welds; self-dissolving slag, fine-flake smooth seam appearance.
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Re-drying
Generally not necessary. However, the cladding tolerates re-drying up to +350°C.
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