Kontakt 218
AWS E307-15
Descriptions & Applications:
Tough high strength, synthetic austenitic electrode designed to resist heat and impact. Fully machinable with a recovery rate of 160%. Easy to use in all positions producing sound welds, good build-up characteristics and good slag detachability. Weld deposit will work harden under impact and retain properties at high temperatures. For joining and overlaying mild and alloy steels, spring steels and heat resisting steels. Suitable for use as a buffer layer prior to hard surfacing of manganese steel and may be used for welding manganese steel rails or similar applications involving friction, impact or corrosion.
Typical All Weld Metal Chemical Analysis:
|
C
|
Mn
|
Si
|
S
|
P
|
Cr
|
Ni
|
| 0.1 | 5.00 | 0.8 | 0.016 | 0.02 | 22.50 | 8.5 |
Typical All Weld Metal Mechanical Properties: As Welded
|
Ultimate Tensile Strength
|
650 N/mm²
|
|
Elongation
|
40%
|
| Hardness | 200 Brinell |
| Hardness (work hardened) | 500 Brinell |
Current:
AC/DC (+)
Sizes Available and Recommended Amperages:
|
2.5mm
|
3.2mm
|
4.0mm
|
5.0mm
|
6.0mm
|
| 60-95 | 95-120 | 120-140 | 140-160 | 160-200 |
Storage:
If allowed to become damp the electrodes should be re-dried for one hour at 250°C before use.
Weld Metal Micro Structure:
Fully Austenitic.
|
|
