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Stanley 221Extremely smooth running alloy grade 21 cobalt electrode. Self releasing slag.
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Extremely smooth running Alloy grade 21 Cobalt electrode
- Excellent resistance to metal and mineral abrasion.
- Slag is self releasing.
- Weld deposits are unusually fine rippled and uniform.
- Available Stanley 221 TIG
- Special technology also performs on AC current.
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Specifications |
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APPLICATIONS:
High-duty overlays of sealing faces and moving parts of valve seats and valves of combustion engines, for pumps fittings for gas, water, steam and acids, gas turbines and hot working tools.
MICROSTRUCTURE:
Cobalt based austenite with some carbides and other complex phases.
FLUX COLOR: Grey
TYPICAL MECHANICAL PROPERTIES:
Undiluted Weld Metal
H a r d n e s s
Room Temperature: 68oF (20oC)
Work Hardened
Elevated Temperatures:
750oF (400oC)
1110oF (600oC)
1475oF (800oC)
1620oF (900oC) |
Maximum Value Up to:
Rockwell C30-32
Rockwell C45
Rockwell C33
Rockwell C30
Rockwell C28
Rockwell C26 |
RECOMMENDED CURRENT: AC or DC Reverse (+)
TEMPERATURE RANGES:
| 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 POSITIONS: Flat, Horizontal
RECOMMENDED AMPERAGE SETTINGS:
Diameter
(mm) |
Length
(mm) |
Weldmetal/
Electrode |
Electrodes per lb
(kg) of Weldmetal |
Arc Time of
Deposition
min/lb (kg) |
Amperage
Setting |
Recovery
Rate |
| 3/32 (2.5) |
14" (350) |
.80oz (22g) |
20 (44) |
19 (42) |
75 |
130% |
| 1/8 (3.25) |
14" (350) |
1.2oz (33g) |
13 (29) |
14 (31) |
95 |
130% |
| 5/32 (4.0) |
14" (350) |
1.56oz (44g) |
10 (22) |
11 (24) |
155 |
130% |
WELDING TECHNIQUES:
Preheat massive parts to 570oF (300oC). Minimize amperage during welding.
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 |
17 |
10 |
6 |
| Electrodes / kg |
37 |
22 |
13 |
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Overview |
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Specifications |
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Email to a Friend |
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