Sandvik 21.13.3.L is a chromium-nickel-molybdenum strip electrode used for corrosion resistant alloy surfacing with electro-slag welding (ESW) or with submerged arc welding (SAW). In ESW, single layer overlays on carbon- and low alloyed steels of 316/316L composition can be deposited. In SAW, buffer layers of 18%Cr/8%Ni/2%Mo composition can be deposited on carbon- and low alloyed steels before surfacing of second layers with molybdenum containing alloys.
- Combined with Sandvik 19.13.4.L for the second layer it will give 317L weld deposit
- Combined with Sandvik 20.25.5.LCu for the second layer it will give 385 weld deposit
- Other combinations and conditions are possible
- ISO 14343: (21 13 3 L) 21 13 3 L (f)
- AWS A5.9/ASME SFA5.9: EQ(309LMo)
Contact your nearest sales office for details.
Chemical composition (nominal) %
The ferrite content is nominally FN 13 according to WRC-92.
Sandvik 21.13.3.L is used for corrosion resistant alloy surfacing, in particular where pitting corrosion is involved, of components in the chemical, petrochemical and marine industries. Typical components are pressure vessels, heat exchangers, shafts, industrial piping etc.
It is used in applications where corrosion resistance similar to 316/316L is required.
Forms of supply
Strip electrodes are delivered in coils with internal diameter 305 mm.
|Standard dimensions||0.5 x 30, 60, 90, 120 mm|
|0.4 x 50, 75, 150 mm|
|Max coil weight||700 kg|
Weld metal characteristics
Typical chemical composition of single layer obtained on C-Mn steel and low-alloyed steel.
|Welding process and consumable||Type of overlay||C||Cr||Ni||FN, WRC|
|ESW 21.13.3.L/47S||316, 316L, E316, E316L||≤0.06||16.5-18.5||10.5-12.5||3-8|
Consider the figures as examples. Parameters selected and conditions influence on the result. Please contact Sandvik for details and guidelines.
Mechanical properties of overlay
Passes side bend testing according to ASME Section IX.
The resistance to pitting corrosion and corrosion in acids is on par with the base metal 316L. The resistance to intergranular corrosion in Strauss testing (ASTM A262 Practice E) is good.
For electro-slag welding (ESW) and submerged arc welding (SAW), weld fluxes are used for protective shielding of the weld metal.
Recommended fluxes for Sandvik 21.13.3.L.