Datasheet updated 20120803 08:59:25 (supersedes all previous editions)
Sandvik 19.9.LR (Covered electrodes) Sandvik 19.9.LR is a covered chromiumnickel electrode with rutileacid coating for welding of steels of ASTM 304 types as well as overlays giving 308 type composition. The electrode has excellent arc stability and fast burn off rate with minimal stub loss. It is also characterized by improved moisture resistance, self peeling slag, easy post weld finishing. Sandvik 19.9.LR gives smooth uniform beads and works in any standard weld position. Applications
Sandvik 19.9.LR is used for welding steels of the following types: UNS
S30400, S30403, S30409 and S30453
ASTM
301, 304L, 304LN, 304 and 302
In cases where creep strength is of secondary importance Sandvik 19.9.LR is suitable for welding stabilized austenitic steels, e.g. ASTM 321 and 347. When a weld metal similar to the parent metal is not required Sandvik 19.9.LR can be used for welding ferritic and martensitic steels. STANDARDS
• •
AWS E308L-17 EN number E 19 9 L R
CHEMICAL COMPOSITION - ALL WELD METAL
The following data are valid for allweld metal. CHEMICAL COMPOSITION (NOMINAL), WT% C
Si
Mn
Cr
Ni
<0.03
0.8
0.6
19.5
10
MICROSTRUCTURE - WELD METAL
Austenitic matrix with a ferrite content of 5–10 FN according to DeLong. MECHANICAL PROPERTIES- WELD METAL
The following data are valid for as welded allweld metal. MECHANICAL PROPERTIES (NOMINAL), AT 20°C Yield strength, RP 0 . 2
MPa
470
Tensile strength, RM
MPa
570
Elongation, A5
%
37
Hardness
HB
200
IMPACT STRENGTH (NOMINAL), CHARPY V Temperature, °C
20
40
KV, J
60
55
CORROSION PROPERTIES - WELD METAL
Sandvik 19.9.LR is resistant to intergranular corrosion according to ASTM A262 practice E in the aswelded and quenchannealed condition. MARKING