OK 61.85

ESAB

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 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 %

Approvals

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

Typical Charpy V-Notch Properties

Conditional Statement Impact Value (met) Testing Temperature
ISO
As welded 100 J(74 ft-lb) 20 degC(68 degF)
As welded 70 J(52 ft-lb) -60 degC(-76 degF)
As welded -120 degC(-184 degF)
Stress relieved 80 J(59 ft-lb) 16 hr 600 degC(1112 degF) 20 degC(68 degF)
Stress relieved 40 J(29.5 ft-lb) 16 hr 600 degC(1112 degF) -60 degC(-76 degF)

Classifications

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

Consumable Characteristics

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

Typical Tensile Properties

As welded As welded Stress relieved
Shielding Gas AWS ISO ISO
Tensile Strength (met) 620 MPa(90 ksi) 640 MPa(93 ksi)
Yield Strength (met) 500 MPa(72.5 ksi) 500 MPa(72.5 ksi)
Elongation 40 % 40 %
Testing Time 16 hr
Testing Temperature (met) 600 degC(1112 degF)

Deposition Data

Current Deposition Rate Diameter Number of electrodes/kg weld metal Voltage kg weld metal/kg electrodes
55-80 A 42 hr 0.9 kg/h(2.0 lb/h) 2.5 x 300 mm(3/32 x 12 in.) 98 25 V 0.60 kg(1.3 lb)
75-110 A 64 hr 1.2 kg/h(2.6 lb/h) 3.2 x 350 mm(1/8 x 14 in.) 49 23 V 0.62 kg(1.4 lb)
80-150 A 70 hr 1.6 kg/h(3.5 lb/h) 4.0 x 350 mm(5/32 x 14 in.) 33 24 V 0.61 kg(1.3 lb)
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Part Numbers and Accessories

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Check box to add

Part Numbers : OK 61.85
OK 61.85 2.5x300mm 1/4 VP 61852520L0 FIND A DISTRIBUTOR
OK 61.85 3.2x350mm 1/2 VP 61853230T0 FIND A DISTRIBUTOR
OK 61.85 4.0x350mm 1/2 VP 61854030G0 FIND A DISTRIBUTOR
OK 61.85 5.0x350mm 1/2 VP 61855030G0 FIND A DISTRIBUTOR
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