IDENTIFICATION
GRITINOX 312 E 312-17
CLASSIFICATION
AWS/SFA 5.4 : E 312-17
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 |
| 0.12 max | 0.5 - 2.0 | 0.50 - 0.90 | 0.03 max | 0.03 max | 28.0 - 32.0 | 8.0 - 10.5 | 0.50 max | 0.50 max |
MECHANICAL PROPERTIES (RANGE)
| UTS (MPa) | EL (%) (L=4D) |
| 700 - 850 | 22 - 32 |
HARDNESS OF THE UNDILUTED WELD METAL : 180 - 220 Brinell
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.
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.
CORROSION RESISTANCE : Good resistance to sulphurous gases at high temperature. Good resistance to wet corrosion upto approximately 300°C.
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 | 150 - 180 | 2 x 5 = 10 | 24 x 5 = 120 |