Lincoln Electric P223 FLUX User Manual

P223 FLUX AWS A5.17-97: F7A4-EM12K and A5.23-97: F8A2-EA1-A2

Lincolnweld®P223 flux is an industry
standard for spiral pipe welding on
up to X80 grade pipe, especially
where good impact properties are
required. It is also well-suited for
longitudinal seam welding on pipe,
producing a low bead profile with
very straight edges, while minimizing
undercuts. Its fast freezing slag
makes it ideal for even small diame­ter pipe. In most cases, the slag is
self-peeling. For these same rea­sons, P223 is an excellent choice for
many two-pass welding applications.
While designed for two-pass welding
applications, P223 is a neutral flux
which is also suitable for use in mul­tiple pass welding with mild steel
and low alloy electrodes.

ADVANTAGE LINCOLN

• The weld deposits of neutral
P223 flux are extremely resistant
to procedural variations.

• Fast solidification of weld metal
and slag for excellent bead
appearance.

• Low dust levels make handling at
the work station clean and easy.

• Excellent weld profiles with straight
and consistent weld bead edges.

• Fast freezing slag makes P223
suitable for smaller diameter pipe.

• Slag is self-peeling on most appli­cations.

• Designed to deliver Charpy
V-Notch impact properties that
exceed most line pipe require­ments.

• Low diffusible hydrogen levels.

• Manufactured under a quality
system certified to ISO 9001.

TYPICAL APPLICATIONS

• Oil and gas line pipe fabrication
through X-80 grades.

• Single pass or multiple pass
welding.

• Single arc or multiple arc (up to
3 arc tandem welding).

• Straight seam or spiral seam
welding.

PRODUCT INFORMATION

• Basicity Index: 1.60

• Particle Size:
+12 Mesh 2% max.

-12/+100 Mesh 96% min.

-100 Mesh 2% max.

• Density: 1.3 g/cm

3

CONFORMANCES

For Mild Steel:

Lincolnweld®L-61
AWS A5.17-97: F7A4-EM12K
ASME SFA-5.17

For Low Alloy Steel:

Lincolnweld®L-70
AWS A5.23-97: F8A2-EA1-A2
ASME SFA-5.23

RECOMMENDED ELECTRODES

Single Pass or Two-Pass Welds:

Lincolnweld®L-61, AWS EM12K

Lincolnweld®L-70, AWS EA1
(intended for applications requiring
robust Charpy impact properties).

Tested on Pipe

MECHANICAL PROPERTIES

Charpy V-Notch Charpy V-Notch Charpy V-Notch Charpy V-Notch
Flux/Wire ft•lbf (Joules) ft•lbf (Joules) ft•lbf (Joules) ft•lbf (Joules)
Combination @ 0ºF (-18ºC) @ -20ºF (-29ºC) @ -40ºF (-40ºC) @ -60ºF (-51ºC)

Actual Test Results 75 76 87 45

As-welded (101) (103) (117) (61)
P223/L-61

Actual Test Results 113 101 99 82
As-welded (153) (136) (134) (111)
P223/L-70

(1)

Mechanical property results obtained on single pass or two-pass welds will vary with base plate composition,
welding procedure, heat input, etc. These results are shown only to demonstrate the potential for the products
being used.

(1)

– Two-pass seam weld on 0.688" wall X-65 pipe

AC/AC two-wire tandem arc procedure

Publication C5.10.1 12/03

www.lincolnelectric.com

P223 FLUX AWS A5.17-97: F7A4-EM12K and A5.23-97: F8A2-EA1-A2

Tested per AWS

MECHANICAL PROPERTIES – As Required per AWS A5.17-97/A5.23-97

Yield Strength Tensile Strength Elongation ft•lbf (Joules)

psi (MPa) psi (MPa) (%) @ -40ºF (-40ºC)

Requirements

P223/L-61 58,000 70,000-95,000 22 20
AWS F7A4-EM12K (400) (483-655) (27)
AWS A5.17-97 min. min. min.
As-welded

Actual Test Results 63,400 77,300 31 93

(437) (533) (126)

Requirements @ -20ºF (-29ºC)

P223/L-70 68,000 80,000-100,000 20 20
AWS F8A2-EA1-A2 (469) (552-689) (27)
AWS A5.23-97 min. min. min.
As-welded

Actual Test Results 79,800 93,900 25 39

(550) (647) (53)

NOTE: The multiple pass procedure shown above is specified in AWS A5.17-97/AWS A5.23-97 and was employed
only for the purpose of AWS classification. The testing results and AWS classification shown should not be used to
determine the suitability of this flux/wire combination for service in limited pass applications. Actual procedural tests
should be conducted to verify the mechanical properties obtained on these applications.

Charpy V-Notch

DEPOSIT COMPOSITION - As Required per AWS A5.17-97/A5.23-97

%C %Mn %Si %S %P %Mo %Cu

Requirements

P223/L-61
AWS F7A4-EM12K Not Specified
AWS A5.17-97

Actual Test Results 0.08 1.38 0.43 0.003 0.011 — 0.06

Requirements

P223/L-70 0.12 1.40 .80 0.030 0.030 0.40-0.65 0.35
AWS F8A2-EA1-A2 max. max. max. max. max. max.
AWS A5.23-97

Actual Test Results 0.08 1.33 0.38 0.009 0.014 0.51 0.09

[2]

P223 Flux 12/03

www.lincolnelectric.com