GRICON GREEN

IDENTIFICATION : GRICON GREEN E 7018

CLASSIFICATION : AWS/SFA 5.1: E 7018, IS 814: EB5426H3 JX DIN : 5144B1026

APPROVED BY :

EIL at CPCL site Chennai and at BPCL site, Mumbai. Also by LRS, ABS, BV, DNV, IRS, BIS(ISI), CHIEF INSPECTOR OF BOILERS BHEL (Trichy).

DESCRIPTION :

Welders friendly heavy coated basic type, hydrogen - controlled, iron powder electrode with high deposition efficiency.

CHARACTERISTICS :

Weld able in all positions (F.H.V.O). Welding technique including arc striking/restricting calls for practical experience for best result. The bead appearance is smooth and the slag is compact, thick and easily detachable. Deposition efficiency of weld metal is approx.115%.The welds are of radiographic quality.

TYPICAL APPLICATIONS :

For radiographic quality welding of highly stressed crack sensitive Joints in steel structures, ship building, heavy duty boilers and pressure vessels, bridges, storage tanks, high pressure pipelines etc. Recommended for higher carbon & higher sulphur steels, which are susceptible to hydrogen induced cracking.


REDRYING TEMPERATURE : 250° C/ 2hrs

DIFFUSIBLE HYDROGEN : Max 4ml/100g of deposited weld metal.

ASME IX Qualification : QW- 432 F-NO 4, QW- 442 A-NO 1

Moisture content in the flux coating : 0.40% max

WELD METAL ANALYSIS (RANGE) % :

C Mn Si S P Ni Cr Mo V Mn+Ni+Cr+Mo+V
0.10 max 0.80-1.60 0.75 max 0.03 max 0.03 max 0.30 max 0.20 max 0.30 max 0.08 max 1.75 max

MECHANICAL PROPERTIES (RANGE) : As welded

Tensile Strength MPa 0.2% Proof Stress (Yield Strength) MPa Elongation (%) (L=4D) Charpy V notch Impact Strength
510 min 440 min 24-30 Temp Joules
27°C 120-200
0° C 100-180
-20°C 80-160
-30°C 60-140

RECOMMENDED CURRENT AND PACKING DATA :

SIZE (mm) LENGTH (mm) AMPS AC(70 OCV)/DC (+) PACKING/BOX (Pcs.) WEIGHT/1000 Pcs. (Kg)
2.50 350 60-85 150X4=600 20.5
3.15/3.20 450 100-130 100X4=400 43.0
4.00 450 130-180 65X4=260 68.4
5.00 450 180-220 45X4=180 101.5
6.30 450 220-280 25x4=120 160.0

Approved By :