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

C Mn Si Cr Fe Mo Ni W Co
1.6 .8 1.0 29 3 1 3 8.5 Bal.

 

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 Amperage

65

80

100

Maximum Amperage

85

110

130

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)

75

130%

1/8 (3.25)

14″(350)

1.2 oz (33g)

13 (29)

14 (31)

95

130%

5/32 (4.0)

14″ (350)

1.56 oz (44g)

10 (22)

11 (24)

115

130%

 

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 / lb

18

11

7

Electrodes / kg

40

25

16

 

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