GRIDUCT 76G

IDENTIFICATION : GRIDUCT 76G E7016G
CLASSIFICATION : AWS/SFA 5.5 : E 7016G, IS814 : EB5626H3

CHARACTERISTICS :

A heavy coated basic type, hydrogen - controlled, electrode which deposits weld metal having about 0.60% nickel and is of radiographic quality. The deposited weld meets impact requirements at minus 50° C. The weld deposit is tough, ductile and is highly resistant to hot or cold cracking even when subjected to high stresses, dynamic loading etc.

TYPICAL APPLICATION :

For the welding of structural steel where resistance to brittle fracture is required under adverse operating conditions such as those found in off-shore production platforms. Used for production of pressure vessels, bridges, pipelines Recommended for higher carbon & higher Sulphur steels, which are susceptible to hydrogen induced cracking. For welding SAILMA 350HI steel, storage tanks, pipe line etc.

REDRYING TEMPERATURE :250° C/ 2hrs

DIFFUSIBLE HYDROGEN :max 5.0ml/100g of weld metal in the weld metal

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

WELD METAL ANALYSIS (RANGE) % :

C Mn Si S P Ni
0.10 max 1.0-1.60 0.55 max 0.025 max 0.025 max 0.40- 0.80

MECHANICAL PROPERTIES (RANGE) (After PWHT at 610° / 1 hr) :

Ultimate Tensile Strength MPa Yield Stress MPa Elongation (%) (L=4D) Charpy v-notch Impact Value
500-600 440-540 24-30 Temp Joules
-50°C 30-80

RECOMMENDED CURRENT AND PACKING DATA :

SIZE (mm) LENGTH (mm) AMPS AC(90V)DC(+) PACKING PER BOX/PCS WEIGHT 1000 PCS,kg
2.5 350 65-85 150X4=600 20
3.20 450 110-140 110X4=400 41
4.00 450 140-180 65X4=260 60
5.00 450 180-240 45X4=180 92