OK 55.00

ESAB

OK 55.00

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OK 55.00 is an exceptional, all-position, low hydrogen basic electrode, particularly suitable for critical applications requiring exceptional impacts at low temperatures. This electrode provides a smooth, stable arc with very low spatter. Excellent arc starting is enhanced by a special graphite tip on the electrode.

The complete slag coverage provides easy removal and minimal post weld cleanup. OK 55.00 is intended for a wide variety of carbon, low alloy and hardenable steels. The weld metal is also very resistant to hot cracking. OK 55.00 meets the requirements of 4 mL diffusible hydrogen content in 100 g of deposited weld metal. In addition to standard packaging, OK 55.00 is available in VacPac™ packaging to ensure the lowest possible moisture content and eliminates the need for costly rebaking procedures.


Typical Charpy V-Notch Properties

Impact Value Testing Temperature
as welded
85 J(63 ft-lb) -45 degC(-49 degF)
80 J(59 ft-lb) -50 degC(-58 degF)

Typical Tensile Properties

ElongationTensile Strength Yield Strength
28 %590 MPa (85.6 ksi)500 MPa (72.5 ksi)

Deposition Data

Current Diameter Deposition Efficiency (%) Number of electrodes/kg weld metal Voltage
80-110 A 64 sec 2.5 x 350.0 mm(0.098 x 13.8 in.) 64 % 66 23 V
110-140 A 72 sec 3.2 x 350.0 mm(1/8 x 13.8 in.) 62 % 41 23 V
110-140 A 88 sec 3.2 x 450.0 mm(1/8 x 17.7 in.) 69 % 30 24 V
140-200 A 72.5 sec 4.0 x 350.0 mm(5/32 x 13.8 in.) 62 % 28 23.2 V
140-200 A 94 sec 4.0 x 450.0 mm(5/32 x 17.7 in.) 71 % 19 24 V
200-270 A 94 sec 5.0 x 450.0 mm(0.197 x 17.7 in.) 72 % 13 24 V
215-360 A 98 sec 6.0 x 450.0 mm(0.236 x 17.7 in.) 72 % 9 25 V

Classifications

Grade E7018-1H4 R
Name SFA/AWS A5.1

Approvals

Approvals ABS 3Y H5
BV 3Y H5
CE EN 13479
CWB E4918-1-H4
DB 10.039.03
DNV-GL 3 YH5
LR 3Ym H5
NAKS/HAKC 2.5-4.0mm
RS 3Y H5
VdTÜV 00632
Approvals are based on factory location. Please contact ESAB for more information.

Consumable Characteristics

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

Typical Weld Metal Analysis %

C Cr Mn Mo Ni P S Si V
0.06 % 0.03 % 1.38 % 0.10 % 0.04 % 0.013 % 0.008 % 0.55 % 0.02 %
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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.

Find the Closest Distributor


Part Numbers and Accessories

Part Numbers : OK 55.00
OK 55.00 2.50x350mm 1/2 VP 55002535G0
OK 55.00 2.5x350mm 5500253000
OK 55.00 2.5x350mm 5500253500
OK 55.00 2.5x350mm 5500253501
OK 55.00 2.5x350mm 1/2 VP 55002530G0
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 5500323000
OK 55.00 3.2x350mm 5500323500
OK 55.00 3.2x350mm 1/2 VP 55003230G0
OK 55.00 3.2x350mm 1/2 VP 55003235G0
OK 55.00 3.2x450mm 5500324000
OK 55.00 3.2x450mm 5500324500
OK 55.00 3.2x450mm 1/2 VP 55003240G0
OK 55.00 4.0x350mm 5500403500
OK 55.00 4.0x450mm 5500404000
OK 55.00 4.0x450mm 5500404500
OK 55.00 4.0x450mm 1/2 VP 55004045G0
OK 55.00 4.0x450mm 3/4 VP 55004040V0
OK 55.00 4.0x450mm 3/4 VP 55004045V0
OK 55.00 5.0x450mm 5500504000
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 5500604000
OK 55.00 6.0x450mm 5500604500
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