Consumeables Catalog - Lincoln Electric

Typical Applications
Tractor rolls
Mine car wheels
Guide rollers
Welding Positions
Flat & Horizontal
Bucket links and bases
Actuating cams
HARDFACING FLUX-CORED SELF-SHIELDED (FCAW-S) WIRE
Lincore®
Key Features
40-O
Metal-to-Metal
Higher hardness for metal-to-metal wear and
mild abrasion
Used on transfer rollers and guides, crane
wheels and shafts
Can be used on low carbon and low alloy steels
Unlimited layers with proper preheat and
interpass temperatures and procedures
DIAMETERS / PACKAGING
Diameter 25 lb (11.3 kg)
50 lb (22.7 kg)
in (mm)
Steel Spool
Coil
5/64 (2.0) ED031119 ED025907
MECHANICAL PROPERTIES (1)
1 Layer
Rockwell Hardness (R ) C
2 Layers 3 Layers
DEPOSIT COMPOSITION (1)
1 Layer
2 Layers
3 Layers
36 41 38
%C %Mn %Si %Al %Cr %Mo
0.18
0.20
0.21
1.25
1.46
1.55
TYPICAL OPERATING PROCEDURES
Diameter, Polarity
Wire Feed Speed Voltage Approx. Current Deposition Rate
ESO - in (mm)
m/min (in/min) (Volts)
(Amps)
kg/hr (lb/hr)
5/64 in (2.0 mm), DC+
1-3/4 (45)
3.2 (125)
5.1 (200)
6.4 (250)
24
27
30
218
282
327
3.2 (7.0)
5.0 (11.1)
6.3 (13.9)
NOTE: Area to be overlayed should be clean and free of rust, oil, etc. Any previous hardfacing deposit that has been embrittled by severe work hardening
should be removed. Cracks and other irregularities should be properly repaired.
Cold parts should be warmed to at least 25ºC (75ºF). Higher preheat of 150 - 260ºC (300 - 500ºF) may be necessary on thick parts or heavy sections.
Interpass temperature between 150ºC (300ºF) and 200ºC (400ºF) do not affect the hardness of Lincore ® 40-O significantly.
IMPORTANT: SPECIAL VENTILATION AND/OR EXHAUST REQUIRED
Fumes from the normal use of some welding products can contain significant quantities of components - such as chromium and manganese - which can lower the 5.0 mg/m3 maximum exposure guideline for general welding fume.
BEFORE USE, READ AND UNDERSTAND THE MATERIAL SAFETY DATA SHEET (MSDS) FOR THIS PRODUCT AND SPECIFIC INFORMATION PRINTED ON THE PRODUCT CONTAINER.
(1) Composition and properties depend upon dilution. Single layer deposit properties depend upon base metal and/or build-up material.
0.53
0.67
0.76
1.34
1.72
1.97
2.51
3.25
3.52
0.32
0.42
0.46
WELDING CONSUMABLES CATALOG ı 251