ESAB OK 74.78 VacPac welding electrodes 4.0mm 2.2kg

Electrode dimensions: 4.0 x 450 mm

Current: 140 – 190 A

OK 74.78 electrodes are designed for welding high strength steels used at low temperatures. Good notch toughness down to –40 °C. Used for welding railroad vehicles and other structures employed at low temperatures, as well as natural gas containers. The electrode flux is characterized by low hygroscopicity.

Mechanical properties of the deposited metal:

Rp0.2 (MPa): 600

Rm (MPa): 650

A5 (%): 24

KV °C/J: -20/90; -50/60

Classification approvals:

CE EN 13479

ABS 3YH5

BV 3YHH

DNV 3YH10

LRS 3, 3YH15

TÜV 01027

Composition of the deposited metal (%):

C: 0.06

S:i 0.35

Mn: 1.50

Mo: 0.35

Welding current: AC, DC+

Arc voltage: min. 65 V

Efficiency factor: 125 %

Classifications:

SFA/AWS A 5.5 E 9018-D1

EN 757 E 55 4 MnMo B 3 2 H5