OK 61.85

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OK 61.85

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OK 61.85 is a basic Nb-stabilized electrode designed for welding of Nb- or Ti-stabilized stainless steels of the 19Cr10Ni-type. It has very good resistance against intergranular corrosion. OK 61.85 provides the best hot cracking resistance of the E347 type electrodes due to the combination of the high ferrite content level and the basic coating. Ferrite may transform to brittle phases at elevated temperatures. To avoid excessive embrittlement of the welds the maximum working temperature is limited to 400°C.

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Typical Charpy V-Notch Properties

Impact Value Testing Temperature
as welded iso
-120 degC (-184 degF)
70 J (52 ft-lb) -60 degC (-76 degF)
100 J (74 ft-lb) 20 degC (68 degF)
stress relieved iso
40 J (29.5 ft-lb) 16 hr 600 degC (1112 degF) -60 degC (-76 degF)
80 J (59 ft-lb) 16 hr 600 degC (1112 degF) 20 degC (68 degF)

Typical Tensile Properties

Condition As Welded Stress Relieved
Shielding Gas ISO ISO
Tensile Strength 620 MPa (90 ksi) 640 MPa (93 ksi)
Yield Strength 500 MPa (73 ksi) 500 MPa (73 ksi)
Elongation 40 % 40 %
Testing Time 16 hr
Testing Temperature 600 degC (1112 degF)

Deposition Data

Current Deposition Rate @ 90% I max Diameter Deposition Efficiency (%) Number of electrodes/kg weld metal Voltage
55-80 A 42 sec 0.9 kg/h (2,0 lb/h) 2.5 x 300.0 mm (0.098 x 11,8 in.) 60 % 98 25 V
75-110 A 64 sec 1.2 kg/h (2,6 lb/h) 3.2 x 350.0 mm (1/8 x 13,8 in.) 62 % 49 23 V
80-150 A 70 sec 1.6 kg/h (3,5 lb/h) 4.0 x 350.0 mm (5/32 x 13,8 in.) 61 % 33 24 V
150-200 A 76 sec 2.3 kg/h (5,1 lb/h) 5.0 x 350.0 mm (0.197 x 13,8 in.) 61 % 21 23 V

Classifications

Classifications Werkstoffnummer : 1.4551
EN ISO 3581-A : E 19 9 Nb B 2 2
SFA/AWS A5.4 : E347-15

Approvals

Approvals NAKS/HAKC 2.5-5.0 mm
Seproz UNA 272580
VdTÜV 05663
Approvals are based on factory location. Please contact ESAB for more information.

Consumable Characteristics

Alloy Type Austenitic CrNi
Coating Type Basic
Ferrite Content FN 6-12
Welding Current DC+

Typical Weld Metal Analysis %

Typical Weld Metal Analysis %
C Cr Mn N Nb Ni Si Si+Fe
0.04 % 19.5 % 1.7 % 0.07 % 0.61 % 10.2 % 0.4 % 6 %
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Part Numbers and Accessories

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Part Numbers : OK 61.85
61852520L0 FIND A DISTRIBUTOR
61853230T0 FIND A DISTRIBUTOR
61854030G0 FIND A DISTRIBUTOR
61855030G0 FIND A DISTRIBUTOR

ESAB EQUIPMENT WARRANTIES ARE VALID ONLY WHEN PURCHASED THROUGH AN ESAB AUTHORIZED DEALERSHIP.

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