Sandvik 19.9.LR-16 (308/308L-16) is a covered chromium-nickel electrode with rutile-basic coating for welding of steels of ASTM 304 types as well as overlays giving 308 type composition.
The low carbon content reduces the susceptibility to intergranular carbide precipitation and intergranular corrosion without the use of stabilizers such as niobium or titanium. Due to the low carbon content, the high temperature strength will not be as high as 308H or 347 grades. For cryogenic applications down to -196°C (-452°F) use of Sandvik 19.9.LR-16 (308/308L-16) CRYO is recommended.
The coating for this electrode is of the American rutile type with a faster freezing rate over -17 Type of the same weld deposit chemistry.
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-16 (308/308L-16) gives smooth uniform beads and works in any standard weld position.
- ISO 3581: 19 9 L R
- AWS A5.4/ASME SFA-5.4: E308L-16
- W.Nr.: 1.4316
Contact your nearest sales office for full details
Please note that the Werkstoff Nr. corresponds to the base material of the grade.
Chemical composition (nominal) %
The all-weld metal for Sandvik 19.9.LR-16 (308/308L-16) is austenitic with a ferrite content of 4–12 FN according to WRC-92.
Sandvik 19.9.LR-16 (308/308L-16) 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-16 (308/308L-16) 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-16 (308/308L-16) can be used for welding ferritic and martensitic steels.
Forms of supply
|Diameter, mm||Length, mm||Diameter, in.||Length, in.|
The electrodes are delivered in hermetically sealed metal cans.
|Temperature||°C (°F)||20 (68)||-20 (-4)|
|Proof strength, RP0.2
||MPa (ksi)||440 (64)|
|Tensile strength, Rm||MPa (ksi)||600 (87)|
|Impact strength (KV)||J (ft lbs)||75 (55)||60 (44)|
Sandvik 19.9.LR-16 (308/308L-16) is resistant to intergranular corrosion according to ASTM A262 practice E in the as-welded and quench-annealed condition.
|Welding positions||Diameter||All except vertical down|
|Current/polarity||DC+ or AC|
|Diameter, mm (in.)||Current, A|
|Interpass Temperature||150°C (300°F)|
|Heat input||As low as practical to limit distortion|
|Electrode diameter mm (in.)||2.50 (~3/32)||3.2 (~1/8)||4.00 (~5/32)||5.00 (~3/16)|
|Length, mm (in.)||300 (~12)||350 (~14)||350 (~14)||350 (~14)|
|kg weld metal/h (approx.)||1||1.5||2.0||2.8|
|lb weld metal/h (approx.)||2.2||3.3||4.4||6.2|
|kg weld metal/kg electrodes||0.62||0.63||0.68||0.64|
|lb weld metal/lb electrodes||0.62||0.63||0.68||0.64|
|Electrodes/kg weld metal||91||45||31||15|
|Electrodes/lb weld metal||41||21||14||5|
|Burn-off time per electrode at max current, s||
|Weight/1000 pcs, kg (lb)||14 (30)||30.4 (67)||45 (100)||65 (143)|