IDENTIFICATION
Griduct 8MH4R, E 11018M H4R
CLASSIFICATION
AWS/SFA 5.5: E11018M -H4R, IS: E76BM329Fe,
DIN: 8529 -81~ EY 6977 Mn2NiMoBH5, BS: 2493-85 2NiMOB
DESCRIPTION
An extruded heavy coated Hydrogen controlled Low-alloy, High Tensile Electrode. The electrode works in all position gives very little spatter with an easily removable slag leaving a bead of nice appearance. The deposition efficiency is approx. 110%.
WELD METAL ANALYSIS (RANGE) %
| C | Mn | Si | S | P | Ni | Cr | Mo | V |
| 0.09 max | 1.3 - 1.8 | 0.5 max | 0.020 max | 0.020 max | 1.4 - 2.50 | 0.25 - 0.40 | 0.25 - 0.50 | 0.05 max |
MECHANICAL PROPERTIES (RANGE)
| TS (MPa) | YS (MPa) | EL (%) (L=4D) | CVN Impact Value | |
| Temp | Joules | |||
| 760 - 840 | 680 - 760 | 20 min | 27°C | 157 |
| -51°C | 34 | |||
TYPICAL APPLICATIONS
• Penstock, earth moving equipments and heavy steel Fabrications made from high tensile steel.
• For welding USS -T1 steel, WEL -TEN 80
• Steels, SA 517 grade F and their equivalents. Specially recommended for welding ASTM AS17 Gr F Q&T steel.
• Excellent for welding fully killed fine grained steels.
WELDING PROCEDURE:
Use short arc length. Weaving of electrodes, if necessary should be done at slow speed and keeping a short arc. The electrodes should be used in perfectly dry condition. The electrodes should be dried at 400°C for 1 hour to obtain better result. Maintain interpass temperature below 120°C.
DIFFUSIBLE HYDROGEN CONTENT IN THE WELD METAL : 4.0ml / 100g of deposited weld metal, Maximum.
WELDING POSITION :
PACKING PARAMETERS
| Size (mm) | Length (mm) | Amps | Packing / Box (kg) | Packing / Box (Pcs) |
| AC (90V) / DC (+) | ||||
| 2.5 | 350 | 60 - 100 | 2 x 6 = 12 | 160 x 4 = 640 |
| 3.15 / 3.20 | 450 | 90 - 130 | 2 x 6 = 12 | 110 x 4 = 440 |
| 4 | 450 | 130 - 190 | 2 x 6 = 12 | 70 x 4 = 280 |
| 5 | 450 | 190 -240 | 2 x 6 = 12 | 45 x 4 = 180 |