böhler welding by voestalpine

Thermanit C Si

TIG rods, high-alloyed

Thermanit C Si


EN ISO 14343-A W 25 20 Mn
AWS A5.9 ER310(mod.)
Mat. No. 1.4842


no approvals



For tough joints with heat resistant Cr and CrNi steels / cast steel grades. For surfacing and joining on matching / similar heat resistant steels / cast steel grades. For tough fill layers beneath final weld passes made with Thermanit L when welding thicker cross-sections of Cr-steels / cast steel grades to permit use of such steels in sulphureous atmospheres.


ø (mm) Length (mm)
1.6 1000
2.0 1000
2.4 1000
3.2 1000
4.0 1000

All information provided is based upon careful investigation and intensive research. However, we do not assume any liability for correctness and information is subject to change without notice.