OK 61.85

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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OK 61.85 - Fact Sheet (en)

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)

Part Numbers and Accessories

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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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Documents

Typical Weld Metal Analysis %

Approvals

Typical Charpy V-Notch Properties

Classifications

Consumable Characteristics

Typical Tensile Properties

Deposition Data

Part Numbers and Accessories

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Documents

Typical Weld Metal Analysis %

Approvals

Typical Charpy V-Notch Properties

Classifications

Consumable Characteristics

Typical Tensile Properties

Deposition Data

Part Numbers and Accessories

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