böhler welding by voestalpine

Thermanit C Si

Solid wire, high-alloyed

Thermanit C Si


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


no approvals



Resistant to scaling up to 1150 °C (2102 °F). For surfacing and joining on matching / similar heat resistant steels / cast steel grades. For tough fill layers beneath cap 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) Spool
0.8 BS300
1.0 B300
1.2 B300

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.