OK Autrod 309Si


OK Autrod 309Si

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A continuous solid corrosion resisting chromium-nickel wire for joining stainless steels to non-alloy or low alloy steels as well as welding of austenitic stainless alloys of 24% Cr, 13% Ni, high C types. OK Autrod 309Si has a good general corrosion resistance. The higher silicon content improves the welding properties such as wetting. When used for joining dissimilar materials the corrosion resistance is of secondary importance.


Typical Weld Metal Analysis %

Wire Composition
C Cr Cu Mn Mo Ni Si Si+Fe
0.08 % 23.3 % 0.15 % 1.8 % 0.20 % 12.7 % 0.9 % 5 %

Typical Charpy V-Notch Properties


Grade G 22 12 H
Name EN ISO 14343-A
Grade ER309Si
Name SFA/AWS A5.9
Grade ~1.4829
Name Werkstoffnummer

Consumable Characteristics

Alloy Type Austenitic (with approx. 10 % ferrite) 23 % Cr - 13 % Ni - High Si

Typical Tensile Properties

ElongationTensile Strength (imp)Yield Strength (imp)
36 %620 MPa (90 ksi)440 MPa (64 ksi)

Deposition Data

Current Deposition Rate Diameter Voltage Wire Feed Speed
80-190 A 1.1-3.1 kg/h(2.4-6.8 lb/h) 1.0 mm(.040 in.) 16-24 V 2.9-8.4 m/min(114-331 in./min)
50-140 A 0.8-2.7 kg/h(1.8-6.0 lb/h) 0.8 mm(.030 in.) 16-22 V 3.4-11 m/min(134-433 in./min)
180-280 A 2.6-4.5 kg/h(5.7-9.9 lb/h) 1.2 mm(.045 in.) 20-28 V 4.9-8.5 m/min(193-335 in./min)
230-350 A 3-5.2 kg/h(6.6-11.5 lb/h) 1.6 mm(1/16 in.) 24-28 V 3,2-5,5 m/min(126-216.5 in./min)

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Part Numbers : OK Autrod 309Si
OK Autrod 309Si 0.8mm 15kg 1652089820 FIND A DISTRIBUTOR
OK Autrod 309Si 1.0mm 15kg 1652109820 FIND A DISTRIBUTOR
OK Autrod 309Si 1.0mm 250kg 1652109320 FIND A DISTRIBUTOR
OK Autrod 309Si 1.2mm 15kg 1652129820 FIND A DISTRIBUTOR
OK Autrod 309Si 1.2mm 250kg 1652129320 FIND A DISTRIBUTOR