Stainless Steel Welding Electrodes
E312-16 - Isoarc 168

Characteristics
This highly versatile electrode is extensively used by the maintenance repair man. The high-alloy content, strength and elongation capabilities allow it to solve various problem steel joining applications. The specially formulated coating permits smooth, porosity free, dense deposits free from spatter. Undercutting is eliminated due to ease of welding and control of the arc. Deposit will take high polish.

Applications
ISOARC 168 is used extensively on repairs to shafts, pinions, springs, tools and dies, gear-teeth, machine parts, earthmoving equipment, agitator blades, pressure vessels and all welds requiring high stress loading capabilities.

Procedures
To avoid the accumulation of heat, use low amperage with stringer bead technique and a short arc. Intermittent welding can be used especially on high alloy steels. On tool steels, preheat to approximately 200 degrees. Light peening of welds will increase the tensile strength.

Redrying
Should electrodes become moist re-dry at 350°C for 1 hour

Classifications
AWS E312-16
PRODUCT ISOARC 168
DIN E 29 9 R 22
 
Mechanical Properties
TENSILE > 750 - 850 Mpa
YIELD > 450 N/mm²
HARDNESS +- 200 to 240 BHN
ELONGATION > 22%
Chemical Analysis
Carbon 0.09
Manganese 2.50
Phosphorous max 0.04
Silicone max 1.0
Sulphur max0.03
Chromium 30.00
Molybdenum max 0.75
Nickel 10.00

Welding Position

Diameter Length Current Pack Mass Item No
2.5 350mm 50 - 80A 6kg EL12925
3.2 350mm 70 - 120A 6kg EL12932
4.0 350mm 120 - 160A 6kg EL12940
5.0 350mm 180 - 200A 6kg EL12950