Stainless Steel Wire

Worker welding in a factory. Heavy industry, welder work
308lsi

Characteristics:
ER308LSi is designed for welding austenitic stainless steel type 19 Cr 10 Ni or similar. The filler metal is also suitable for welding titanium and niobium stabilized steels, E.G. ASTM 321 and ASTM 347, in cases where the construction will be operating at temperatures not exceeding 400deg C.

Procedures:
Mig welding can be performed as short, spray or pulsed arc. Short arc is preferably used for thin gauges, both for horizontal and positional welding. Shielding gas recommendations: Ar + 2% O2 or Ar 2-3% CO2. The addition of O2 or CO2 provides good arc stability. Welding can also be performed using an addition of 30% helium (He), which will increase the energy of the arc. The fluidity is hereby improved and the weld is generally wider. The welding speed can therefore be increased. Addition of He will increase the blackening slightly. Gas flow rate: 12-16l/mm.

309

Characteristics:
ER309LSi is a high alloyed 23Cr 13Ni wire primarily intended for surfacing low alloyed steels and dissimilar welding between stainless and mild steel.

Procedures:
When welding stainless steel or low alloyed steels, it is advisable/ necessary to reduce dilution of the weld as much as possible. Welding should therefore be performed with a limited heat input and appropriate bevel angle. Shielding gas recommendations: Ar + 2% O2 or Ar + 2-3% CO2. The addition of O2 or CO2 provides good arc stability. Welding can also be performed using an addition of 30% helium (He) which will also increase the energy of the arc. The fluidity is hereby improved and the weld is generally wider. The welding speed can therefore be increased. Addition of He will increase the blackening slightly. Gas flow rate: 12-16 l/min.

310

Characteristics:
ER310 is designed for welding high temperature steels such as ASTM 310S and similar.

Procedures:
Mig welding of 310 materials is best performed using spray arc or pulsed arc . The weldability using short arc is somewhat limited and the welding of thin gauges (<3mm) and in-position is best performed using pulsed arc. Shielding gas recommendations: Ar or Ar + 30% He. The helium addition improves the fluidity and gives a slightly wider penetration. Helium increases the energy in the arc and the heat should therefore be kept at a lower level than when welding without helium to compensate for the higher temperature in the arc. Addition of the helium will increase the blackening slightly. Gas flow: 12-16 l/min.

312

The 312 deposit is excellent for welding dissimilar steels because of the high crack resistance and the highest tensile and yield strengths of any of the stainless arc welding electrodes commonly in use today. Information provided by Universal Wire Works for their line of welding wire and filler metal.


316

Characteristics:
ER316L is designed for welding austenitic stainless steel type 17Cr 12Ni 2.5Mo or similar, where high resistance to general and inter crystalline corrosion is required. 

Procedures;
 Mig welding can be performed as short, spray or pulsed arc. Short arc is preferably used for thin gauges, both for horizontal and positional welding. Shielding gas recommendations: Ar + 2% O2 or Ar 2-3% CO2. The addition of O2 or CO2 provides good arc stability. Welding can also be performed using an addition of 30% helium (He) which will also increase the energy of the arc. The fluidity is hereby improved and the weld is generally wider. The welding speed can therefore be increased. Addition of He will increase the blackening slightly. Gas flow rate: 12-16 l/min..

 

 

 

2209

Alloy ER 2209 is designed to weld duplex stainless steels such as 2205 (UNS Number N31803). 

High tensile strength and improved resistance to stress corrosion cracking and pitting characterize the welds of this wire

This wire is lower in ferrite compared to that of base metal in order to obtain improved weldability.