ESAB

OK 76.98

The following items have been added to your list


x

OK 76.98 is a low-hydrogen electrode for welding modified 9 Cr steels like T91/P91. The electrode is suitable for all-positional welding in pipes and plates. The mechanical properties stated here are after two hours of heat treatment at 750°C.


Typical Charpy V-Notch Properties

PWHT
Impact Value 37 ft-lb
Impact Value 50 J
Shielding Gas ISO
1391 °F
755 °C
2 hr
Testing Temperature 68 °F
Testing Temperature 20 °C

Typical Tensile Properties

ConditionElongationShielding GasTensile Strength Testing Temperature Testing TimeYield Strength
PWHT21 %ISO820 MPa (119 ksi)755 degC (1391 degF)2 hr720 MPa (104 ksi)

Deposition Data

Current Deposition Rate @ 90% I max Diameter Deposition Efficiency (%) Number of electrodes/kg weld metal Voltage
70-100 A 56 sec 0.9 kg/h (2,0 lb/h) 2.5 x 350.0 mm (0.098 x 13,8 in.) 66 % 71.4 21 V
90-135 A 68 sec 1.2 kg/h (2,6 lb/h) 3.2 x 350.0 mm (1/8 x 13,8 in.) 60 % 45.5 22 V
130-200 A 85 sec 1.9 kg/h (4,2 lb/h) 4.0 x 450.0 mm (5/32 x 17,7 in.) 64 % 22.6 23 V

Classifications

Classifications EN ISO 3580-A : E CrMo91 B 4 2 H5
SFA/AWS A5.5 : E9015-B91 (nearest)

Approvals

Approvals CE EN 13479
NAKS/HAKC 2.5-4.0 mm
Seproz UNA 272580
VdTÜV 07687
Approvals are based on factory location. Please contact ESAB for more information.

Consumable Characteristics

Alloy Type Low alloyed (9 % Cr, 1 % Mo + Ni / V / Nb)
Coating Type Basic covering
Diffusible Hydrogen < 5.0 ml/100g
Welding Current DC+

Typical Weld Metal Analysis %

Typical Weld Metal Analysis %
C Cr Mn Mo Nb Ni Si V
0.1 % 9 % 0.8 % 1 % 0.06 % 0.7 % 0.35 % 0.24 %
x

How to purchase OK 76.98

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 76.98
76982530K0
76983230G0
76984040G0
76985040G0
x
x

x

Loading..