ESAB OK Flux 429 - Bonded - 14 X 65 - 55 lb Bag

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ESAB OK Flux 429 - Bonded - 14 X 65 - 55 lb Bag - 8424F09

OK Flux 429 is a neutral, bonded flux intended for butt and fillet welding of carbon and low alloy steel plate. It combines good as welded and stress relieved mechanical properties with excellent performance. Its slag is generally self peeling, even in tight, narrow groove butt welds. It provides moderate tolerance of rust and mill scale. OK Flux 429 is used in offshore oil rig, bridge, ship, pressure vessel, and structural fabrication. It will operate with DC and AC, single and multiwire systems at currents up to 1000 amps.

Basicity Index: 1.1

Chemical Composition:

SiO₂ + TiO₂ 20

Al₂ + MnO 40

CaO + MgO 25

Fluorides 10

Flux Consumption

(lb. Flux / lb. Wire)

Voltage DC+

26 0.73

30 1.02

34 1.33

38 1.46

Classifications/Approvals
- : F7A2-EM13K
- : F7A4-EH12K
- : F8A2-EA2-A3
- : AWS A5.23 / ASME SFA 5.23
- : F7A2-EM12K
- : F6P4-EM12K
- : F8P0-EA2-A3
- : F7P0-EM14K
- : AWS A5.17 / ASME SFA 5.17
- : F9A4-ENi4-Ni4
- : CERTIFIED BY C.W.B.- CSA W48
- : F8P4-ENi4-Ni4
- F8A4-ENi1K-Ni1

Properties:

Typical Mechanical Properties
As Welded
Spoolarc 81
Tensile Strength	79 ksi, 545 MPa
Yield Strength	66 ksi, 455 MPa
Elongation in 2"	28 %
CVN	48 ft.-lbs., 65 J
Temperature	-20 °F, -29 °C
Spoolarc 40B
Tensile Strength	88 ksi, 605 MPa
Yield Strength	77 ksi, 530 MPa
Elongation in 2"	25 %
CVN	21 ft.-lbs., 28 J
Temperature	-20 °F, -29 °C
Spoolarc 29S
Tensile Strength	83 ksi, 570 MPa
Yield Strength	67 ksi, 460 MPa
Elongation in 2"	27 %
CVN	38 ft.-lbs., 42 J
Temperature	-20 °F, -29 °C
Spoolarc 53
Tensile Strength	85 ksi, 585 MPa
Yield Strength	71 ksi, 490 MPa
Elongation in 2"	28 %
CVN	30 ft.-lbs., 52 J
Temperature	-40 °F, -40 °C
Spoolarc 75
Tensile Strength	86 ksi, 595 MPa
Yield Strength	73 ksi, 505 MPa
Elongation in 2"	28 %
CVN	40 ft.-lbs., 54 J
Temperature	-40 °F, -40 °C
Spoolarc ENi4
Tensile Strength	93 ksi, 640 MPa
Yield Strength	82 ksi, 565 MPa
Elongation in 2"	25 %
CVN	44 ft.-lbs., 60 J
Temperature	-40 °F, -40 °C
Stress Relieved 1 hr. @ 1150°F
Spoolarc 81
Tensile Strength	75 ksi, 515 MPa
Yield Strength	60 ksi, 415 MPa
Elongation in 2"	30 %
CVN	50 ft.-lbs., 68 J
Temperature	-40 °F, -40 °C
Spoolarc 71
Tensile Strength	80 ksi, 550 MPa
Yield Strength	63 ksi, 430 MPa
Elongation in 2"	32 %
CVN	20 ft.-lbs., 28 J
Temperature	-20 °F, -29 °C
Spoolarc 40B
Tensile Strength	88 ksi, 605 MPa
Yield Strength	75 ksi, 515 MPa
Elongation in 2"	26 %
CVN	26 ft.-lbs., 35 J
Temperature	0 °F, -18 °C
Spoolarc ENi4
Tensile Strength	89 ksi, 615 MPa
Yield Strength	77 ksi, 530 MPa
Elongation in 2"	26 %
CVN	24 ft.-lbs., 33 J
Temperature	-40 °F, -40 °C
Typical Undiluted Weld Metal Analysis
As Welded
Spoolarc 81
C	0.06 %
Mn	1.40 %
Si	0.45 %
P	0.020 %
S	0.015 %
Spoolarc 40B
C	0.06 %
Mn	1.40 %
Si	0.40 %
P	0.023 %
S	0.012 %
Mo	0.48 %
Cu	0.48 %
Spoolarc 29S
C	0.07 %
Mn	1.70 %
Si	0.70 %
P	0.020 %
S	0.012 %
Spoolarc 53
C	0.06 %
Mn	1.80 %
Si	0.50 %
P	0.026 %
S	0.010 %
Spoolarc 75
C	0.05 %
Mn	1.50 %
Si	0.60 %
P	0.018 %
S	0.012 %
Ni	0.80 %
Spoolarc ENi4
C	0.06 %
Mn	1.30 %
Si	0.40 %
P	0.021 %
S	0.009 %
Cr	1.7 %
Ni	1.79 %
Mo	0.15 %
Cu	0.15 %
Spoolarc 71
C	0.06 %
Mn	1.58 %
Si	0.58 %
P	0.018 %
S	0.009 %

Surcharges may apply. Surcharges are billed separately!
Please call for a quote unless you agree to current market surcharges!

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