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Sandvik 19.12.3.L is a filler material for joining stainless CrNiMo and CrNi steels, stabilized or non-stabilized, e.g. ASTM 316, 316L and 316Ti as well as 304, 304L, 321 and 347.
STANDARDS
– ISO 14343: 19 12 3 L
– AWS A5.9/ASME SFA-5.9: ER316L
– W.Nr.: 1.4430
Please note that the Werkstoff Nr. corresponds to the base material of the grade.
SANDVIK 19.12.3.L
WELDING WIRE
DATASHEET
Sandvik 19.12.3.L is a filler material for joining stainless CrNiMo and CrNi steels, stabilized or non-stabilized, e.g. ASTM 316, 316L and 316Ti as well as 304, 304L, 321 and 347.
STANDARDS
– ISO 14343: 19 12 3 L
– AWS A5.9/ASME SFA-5.9: ER316L
– W.Nr.: 1.4430
Please note that the Werkstoff Nr. corresponds to the base material of the grade.
CHEMICAL COMPOSITION (NOMINAL) % Chemical composition (nominal) %
C Si Mn P S Cr Ni Mo N
<0.020 0.4 1.8 <0.025 <0.015 18.5 12.5 2.6 <0.060
APPROVALS CE, DNV, TÜV
Certificates of approval, including Declaration of Performance, can be found in the Materials Center, Welding materials - approvals.
APPLICATIONS Datasheet updated 6/1/2018 9:43:10 AM (supersedes all previous editions)
Sandvik 19.12.3.L is used for joining stainless CrNiMo and CrNi steels, stabilized or non-stabilized, e.g. ASTM 316, 316L and 316Ti as well as 304, 304L, 321 and 347, used for service temperatures up to 400 oC (750 oF). It is also used for Cr steels with max. 19% Cr. Sandvik 19.12.3.L is used for MIG/MAG, TIG, PAW and SAW.
FORMS OF SUPPLY
Sandvik 19.12.3.L is supplied as wire and straight rods
WELD METAL CHARACTERISTICS
Sandvik 19.12.3.L gives a microstructure with an austenitic matrix and a ferrite content of approximately 10FN according to DeLong.
Chemical composition - all-weld metal
The data below is typical for non heat treated all-weld metal made by SAW, Flux 15W.
Chemical composition, wt %
C Si Mn P S Cr Ni Mo N
0.018 0.5 1.5 0.023 0.011 18 12 2,6 0.06
1 SANDVIK 19.12.3.E
Chemical composition, wt %
C Si Mn P S Cr Ni Mo N
MECHANICAL PROPERTIES
MIG TIG – typical for non-heat treated weld metal
Temperature °C (°F) 20 (68) 400 (752) -196 (-321)
Yield strength, R P0.2 MPa (ksi) 410 (60) 290 (42) -
Tensile strength, R M MPa (ksi) 610 (88) 470 (68) -
Elongation, A5 % 35 26 -
Reduction in area, Z % 40 - -
Impact strength, KV J (ft lbs) 110 (81) - 50 (37)
Hardness, Vickers HV 160 - -
SAW - typical for non heat treated weld metal using flux 15W
Temperature °C (°F) 20 (68)
Yield strength, RP0.2 MPa (ksi) 390 (57)
Tensile strength, Rm MPa (ksi) 580 (84)
Elongation, A % 35
Impact strength, KV J (ft lbs) 60 (44)
CORROSION
Sandvik 19.12.3.L has good resistance to general corrosion and due to its low carbon content, good resistance to intercrystalline corrosion. It also has good resistance to pitting corrosion due to the balanced molybdenum content. Example: Pitting corrosion test. Three days in 1% FeCl3 at 20oC (68oF), no corrosion observed.
FABRICATION
Recommended welding data
MIG welding
Electrode positive is used to give good penetration in all types of welded joint. The following table shows common
conditions for MIG welding.
Wire diameter, mm Wire feed, m/min Current, A Voltage, V Gas, l/min
Short-arc welding
0.8 4-8 40-120 15-19 12
1.0 4-8 60-140 15-21 12
Spray-arc welding
1.0 6-12 140-220 23-28 18
1.2 5-9 180-260 24-29 18
1.6 3-5 230-350 25-30 18
Pulsed-arc welding 1)
1.2 3-10 150-250 23-31 18
1) Pulse parameters:
Datasheet updated 6/1/2018 9:43:10 AM (supersedes all previous editions)
2 SANDVIK 19.12.3.E
– Peak current 300 - 400 A
– Background current 50 - 150 A – Frequency 80 - 120 Hz
Sandvik can provide recommendations for shielding gases.
– Short-arc welding is used with light gauge material of less than about 3 mm, in depositing root runs, and in
welding out-of-flat positions.
– The higher the inductance in short-arc welding, the higher the fluidity of the molten pool.
– Spray-arc welding is normally used for heavier gauge material.
TIG welding
The parameters for TIG welding depend largely upon the base metal thickness and the welding application.
Electrode negative and a shielding gas of argon or helium should be used to prevent oxidation of the weld metal.
Submerged-arc welding
Electrode positive is suggested for joint welding to give good penetration.
Wire diameter, mm Current, A Voltage, V
2.0 200-300 28-32
2.4 250-400 28-32
3.2 300-450 29-34
4.0 350-500 30-35
Recommended flux is Sandvik 15W.
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