OK 74.70 is an LMA electrode used for welding high strength, low-alloyed steel. The electrode is designed for various applications, including pipelines.
Typical Charpy V-Notch Properties
|Impact Value||Testing Temperature|
|as welded iso|
|120 J (89 ft-lb)||-20 degC (-4 degF)|
|90 J (67 ft-lb)||-40 degC (-40 degF)|
Typical Tensile Properties
|Condition||Elongation||Shielding Gas||Tensile Strength||Yield Strength|
|As Welded||25 %||ISO||650 MPa (94 ksi)||550 MPa (80 ksi)|
|Current||Deposition Rate @ 90% I max||Diameter||Deposition Efficiency (%)||Number of electrodes/kg weld metal||Voltage|
|80-140 A||63 sec||1.14 kg/h (2,5 lb/h)||3.2 x 350.0 mm (1/8 x 13,8 in.)||58 %||50||23 V|
|80-140 A||91 sec||1.6 kg/h (3,5 lb/h)||3.2 x 450.0 mm (1/8 x 17,7 in.)||61 %||25||23 V|
|110-190 A||93 sec||1.66 kg/h (3,7 lb/h)||4.0 x 450.0 mm (5/32 x 17,7 in.)||63 %||24||24 V|
SFA/AWS A5.5 : E8018-G
EN ISO 2560-A : E 50 4 Z B 42 H5
|Approvals are based on factory location. Please contact ESAB for more information.|
|Alloy Type||Low alloyed (0.5 % Mo)|
|Coating Type||Basic covering|
|Diffusible Hydrogen||< 5.0 ml/100g|
Typical Weld Metal Analysis %
|Typical Weld Metal Analysis %|
|0.08 %||1.5 %||0.45 %||0.4 %|
How to purchase OK 74.70
We're as eager to put ESAB gear in your hands as you are to have it. That's why we sell our products with distributors who'll give you the attention, support, and value you deserve. Their expertise will make sure that you're as happy with the purchasing process as we know you'll be with your purchase itself.
To make things even easier, we've developed the online shopping list below. As you browse our site, you'll be able to click on any product to have it added to this easy reference sheet. And when you're done, you can send the list to yourself or print it out and bring it in to the distributor of your choice.
To find an ESAB distributor, just use the distributor locator tool featured on every page of our site. Alternatively, you can call our support line at +361 382 1235 and we'll point you in the right direction.