IDENTIFICATION
GRINOX 12 E 312-16
CLASSIFICATION
AWS A5.4: E312–16
DESCRIPTION
A rutile coated electrode depositing austenitic / ferritic stainless steel weld metal with a ferrite content of approximately FN 40. The weld metal exhibits excellent tolerance to dilution from dissimilar and difficult to weld materials without hot cracking.
WELD METAL ANALYSIS (RANGE) %
| C | Mn | Si | S | P | Cr | Ni | Mo | Cu |
| 0.15 max | 0.5 - 1.80 | 0.40 - 0.90 | 0.03 max | 0.03 max | 28.0 - 32.0 | 8.0 - 10.5 | 0.75 max | 0.50 max |
MECHANICAL PROPERTIES (RANGE)
| UTS (MPa) | EL (%) (L=4D) |
| 660 - 800 | 22 - 32 |
TYPICAL APPLICATIONS
Difficult to weld steels e.g. high carbon hardenable tool, die and spring steels, 13 % Mn steels, free cutting steels, high temperature steels, dissimilar joints between stainless and high carbon steels, surfacing metal-to-metal areas, hot working tools, furnace components.
CORROSION RESISTANCE
Good resistance to sulphurous gases at high temperature. Good resistance to wet corrosion upto approximately 300°C.
OUTSTANDING FEATURES
• Spray type metal transfer.
• Smooth weldbead, electrode does not get red hot.
• Easy deslagging.
• Very low spatter loss, soft arc.
• Excellent weldability for all steels.
WELDING PROCEDURE
• Clean weld area.
• Bevel heavy sections.
• Use recommended current.
• Dry the electrodes at 200°C / 2 hrs.
• Use short arc.
HARDNESS OF THE UNDILUTED WELD METAL : 180 - 220 Brinell
WELDING POSITION :
PACKING PARAMETERS
| Size (mm) | Length (mm) | AMPS AC / DC (+) | Packing / Box (kg) | Packing / Box (Pcs) |
| 2.5 | 350 | 65 – 80 | 2 x 5 = 10 | 94 x 5 = 470 |
| 3.15 / 3.20 | 350 | 70 – 110 | 2 x 5 = 10 | 60 x 5 = 300 |
| 4 | 350 | 110 – 150 | 2 x 5 = 10 | 38 x 5 = 190 |
| 5 | 350 | 160 – 210 | 2 x 5 = 10 | 24 x 5 = 120 |