ISANDVIKI
Sandvik 23.12.2.L-T1 (309LM〇-T1) is a high alloyed chromium-nickel-molybdenum flux core electrode for welding of dissimilar joints between stainless steel and mild or low alloyed steels. It is also used to create buffer layers with a composition of 18%Cr/8%Ni/2%Mo before overlay alloys are deposited.
The electrode has excellent arc stability, low spatter and fast bum off rate. It is also characterized by improved moisture resistance, self-peeling slag and easy post weld finishing. Sandvik 23.12.2.L-T1 (309LM〇-T1) gives smooth, uniform beads and works in any standard weld position.
-ISO 14174:T23 12 2 LRCM 1 -AWS A5.22/ASMEA5.22:E309LMo-T1-1/T1-4 -Wnr: 1.4333
Product Approvals
Please note that the Werkstoff Nr. corresponds to the base material of the grade.
CHEMICAL COMPOSITION (NOMINAL) %
Chemical composition (nominal) %
c
Si
Mn
Cr
Ni
Mo
0.029
0.73
1.1
23.3
12.9
2.6
The all weld metal for Sandvik 23.12.2.L-T 1 (309LM〇-T1) is austenitic matrix with a ferrite content of 4-20 FN according to WRC-92.
Sandvik 23.12.2.L (309LM〇-T1) is used for welding steels of the following types:
Welding of stainless steels to mi d or low alloy steels 一巳uffcr layers on low alloy stccb before overlays of 316 composition - Welding of medium carbon hardenable steels, e_g. armour plate
When a weld metal similar to the parent metal is not required, Sandvik 23.12.2.L-T1 (309LM〇-T1) can be used for welding ferritic and martensitic steels
Sandvik 23.12.2.L-T1 (309LM〇-T1) is supplied in wire of diameters 0.9,1.2,1.6 mm (0.035, 0.047,1/16 in.).