1212 – Cobalt Grade 12 Electrode

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INTERNATIONAL CLASSIFICATIONS

AWS/ASME A 5.13 E CoCr-B

EN 14700 E Co2

DIN 8555: E20-UM-50-CTZ

FEATURES & APPLICATIONS

Hardfacing tools used for processing plastics, wood, and paper products including hot shear blades and extrusion screws.

  • Extremely smooth running Alloy 12 Cobalt electrode.
  • Excellent resistance to metal and mineral abrasion.
  • Slag is self releasing.
  • Weld deposits are unusually fine rippled and uniform.
  • Available bare as product code 1292.
  • Special technology also performs on AC current.
All Weld Metal Analysis (Typical Weight %)

Microstructure: Cobalt based austenite with some carbides and other complex phases.

Flux Color: Grey

Tip Color: Turquoise

CMnSiCrFeMoNiWCo
1.6.81.0293138.5Bal.
Typical Mechanical Properties

Undiluted Weld Metal Maximum Value Up to:

Hardness

Room Temperature: 68°F (20°C) Rockwell C50

Work Hardened Rockwell C58

Elevated Temperatures: 750°F (400°C) Rockwell C44

1110°F (600°C) Rockwell C40

1475°F (800°C) Rockwell C37

1620°F (900°C) Rockwell C35

Welding Current & Instructions

Recommended Current: AC or DC Reverse (+)

Diameter (mm)3/32 (2.5)1/8 (3.25)5/32 (4.0)
Minimum Amperage6580100
Maximum Amperage85110130

Welding Techniques: Preheat massive parts to 570°F (300°C). Minimize amperage during welding.

Welding Positions: Flat, horizontal

Deposition Rates:

Diameter
(mm)
Length
(mm)
Weldmetal/
Electrode
Electrodes
per lb (kg) of
Weldmetal
Arc Time of
Deposition
min/lb (kg)
Amperage
Settings
Recovery
Rate
3/32 (2.5)14″ (350).80 oz. (22g)20 (44)19 (42)75130%
1/8 (3.25)14″(350)1.2 oz (33g)13 (29)14 (31)95130%
5/32 (4.0)14″ (350)1.56 oz (44g)10 (22)11 (24)115130%
APPROXIMATE ELECTRODE PACKAGING & DIMENSIONS
Diameter (mm)3/32 (2.5)1/8 (3.25)5/32 (4.0)
Length (mm)14″ (350)14″ (350)14″ (350)
Electrodes / lb18117
Electrodes / kg402516