OK 55.00


OK 55.00

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OK 55.00 is a reliable, high-quality, LMA electrode, particularly suitable for welding high strength low-alloy steels. The good, low-temperature impact strength of the weld metal should be noted. The weld metal is also very resistant to hot cracking. The electrode is also suitable for welding high strength ships steel, grades A, D and E.

Typical Weld Metal Analysis %

Typical Weld Metal Analysis %
Element C Si Mn
Nominal Percentage 0.06 % 0.5 % 1.5 %


Grade EN 13479
Society CE
Grade 10.039.03
Society DB
Grade 00632
Society VdTÜV
Grade 3Y H5
Society ABS
Grade 3Y H5
Society BV
Grade 3Y H5
Society RS
Grade 3Ym H5
Society LR
Grade 2.5-4.0 mm
Grade E4918-1-H4
Society CWB
Grade 3Y H5
Society DNV-GL
Approvals are based on factory location. Please contact ESAB for more information.

Typical Charpy V-Notch Properties

Condition Conditional Statement Impact Value (met) Testing Temperature (met)
As welded As Welded 105 J -45 degC
As welded As Welded 100 J -50 degC


Grade E7018-1H4 R
Name SFA/AWS A5.1
Grade E 46 5 B 32 H5
Name EN ISO 2560-A
Grade E4918-1-H4
Name CSA W48

Consumable Characteristics

Welding Current AC, DC+
Diffusible Hydrogen < 4.0 ml/100g
Coating Type Basic covering
Alloy Type Carbon Manganese

Typical Tensile Properties

ConditionElongationShielding Gas
As Welded28 %ISO

Current Range

Current Diameter
140-200 A 4.0 x 450 mm
80-110 A 2.5 x 350 mm
110-140 A 3.2 x 350 mm
110-140 A 3.2 x 450 mm
140-200 A 4.0 x 350 mm
200-270 A 5.0 x 450 mm
215-360 A 6.0 x 450 mm

How to purchase OK 55.00

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.

Part Numbers and Accessories

Part Numbers : OK 55.00
OK 55.00 2.50x350mm 1/2 VP 55002535G0
OK 55.00 2.5x350mm 5500253500
OK 55.00 2.5x350mm 5500253501
OK 55.00 3.25x350mm 3/4 VP 55003235V0
OK 55.00 3.25x450mm 1/2 VP 55003245G0
OK 55.00 3.25x450mm 3/4 VP 55003245V0
OK 55.00 3.2x350mm 5500323500
OK 55.00 3.2x350mm 1/2 VP 55003235G0
OK 55.00 3.2x450mm 5500324500
OK 55.00 4.0x350mm 5500403500
OK 55.00 4.0x350mm 3/4 VP 55004035V0
OK 55.00 4.0x450mm 5500404500
OK 55.00 4.0x450mm 1/2 VP 55004045G0
OK 55.00 4.0x450mm 3/4 VP 55004045V0
OK 55.00 5.0x450mm 5500504500
OK 55.00 5.0x450mm 1/2 VP 55005045G0
OK 55.00 5.0x450mm 3/4 VP 55005045V0
OK 55.00 6.0x450 mm 3/4 VP 55006045V0
OK 55.00 6.0x450mm 5500604500