OK Autrod 318Si


OK Autrod 318Si

The following items have been added to your list


A continuous, solid, corrosion-resistant, stabilised, chromium-nickel-molybdenum wire for welding Cr-Ni-Mo and Cr-Ni stabilised or non-stabilised steels. OK Autrod 318Si has good general corrosion resistance. The alloy is stabilised with niobium to improve resistance to the intergranular corrosion of the weld metal. The higher silicon content improves the welding properties such as wetting. Due to stabilisation by niobium, this alloy is recommended for service temperatures up to 400ºC.


Typical Weld Metal Analysis %

Wire Composition
C Cr Cu Mn Mo Nb Ni Si Si+Fe
0.05 % 18.8 % 0.10 % 1.7 % 2.60 % 0.50 % 11.9 % 0.8 % 6 %


Society CE
Grade EN 13479
Approvals are based on factory location. Please contact ESAB for more information.

Typical Charpy V-Notch Properties


Grade G 19 12 3 Nb Si
Name EN ISO 14343-A
Grade ~1.4576
Name Werkstoffnummer

Consumable Characteristics

Alloy Type Austenitic (with approx. 7 % ferrite) 19% Cr - 12% Ni - 3 % Mo - Nb

Typical Tensile Properties

As welded As welded
Shielding Gas Tested at 400°C (752°F).
Tensile Strength (met) 480 MPa(70 ksi) 615 MPa(89 ksi)
Yield Strength (met) 360 MPa(52 ksi) 460 MPa(67 ksi)
Elongation 35 % 35 %

Deposition Data

Current Deposition Rate Diameter Voltage Wire Feed Speed
55-160 A 1.0-4.1 kg/h(2.2-9.0 lb/h) 0.8 mm(.030 in.) 15-24 V 4.0-17.0 m/min(157.5-669 in./min)
80-240 A 1.5-6.0 kg/h(3.3-13.2 lb/h) 1.0 mm(.040 in.) 15-28 V 4.0-16.0 m/min(157.5-630 in./min)
100-300 A 1.6-7.5 kg/h(3.5-16.5 lb/h) 1.2 mm(.045 in.) 15-29 V 3.0-14.0 m/min(118-551 in./min)

Part Numbers and Accessories

Select All | Select None

Check box to add

Part Numbers : OK Autrod 318Si
OK Autrod 318Si 0.8mm 15kg 1631089820 FIND A DISTRIBUTOR
OK Autrod 318Si 1.0mm 15kg 1631109820 FIND A DISTRIBUTOR
OK Autrod 318Si 1.0mm 250kg 1631109320 FIND A DISTRIBUTOR
OK Autrod 318Si 1.2mm 15kg 1631129820 FIND A DISTRIBUTOR